Large outdoor pots
You can test a bottle at the sink before you travel, and the pot is wide enough for a cone about 18 cm long. The Bamworld six-pack states that length at about £12.99, with 4.6 from 75 reviews.
Watering spikes comparison 2026
The best watering spikes, compared.
Top pick: Artiwell terracotta 6-pack Best value: Artiwell terracotta 8-pack – About £15.99 for eight cones with a printed 1 to 2 hour soak and a stated length. Updated October 2026.
A watering spike is a pointed insert that moves water from a drinks bottle, or from a small chamber, into compost in a pot, grow bag or allotment bed. You buy one for a few days away, or when containers dry between waterings. The Royal Horticultural Society says containers in a dry spell may need water every day. The set mixes clay bottle cones, plastic bottle valves, and globes that hold their own water. Judge a spike by pot size, whether your bottle seats without force, and whether UK reviewers describe a finished trip rather than a snap, an overnight empty, or a valve that is fully open or fully shut. Seller lines of 7 to 10 days per litre stay claims. A tap timer on the outside tap is a different purchase, covered in the [watering timer](/hub/garden-watering/watering-timer) comparison.
A watering spike is a pointed insert that moves water from a drinks bottle, or from a small chamber, into compost in a pot, grow bag or allotment bed.
42 products checked · 64 hrs invested · +22,800 readers
12 of 12: Best watering spikes compared
Swipe for more
1-2 of 12Best overall
Best value
6.2/10
6.9/10
8.3/10
6.8/10
7.0/10
5.4/10
5.8/10
7.8/10
2.4/10
2.8/10
1.0/10
1.0/10
∼ £13
∼ £17
∼ £13
∼ £19
∼ £16
∼ £19
∼ £13
∼ £25
∼ £6
∼ £9
∼ £8
∼ £9
4.7(18)
4.6(99)
4.6(75)
4.6(20)
4.4(34)
4.4(8)
4.2(17)
4.1(1,045)
2.0(2)
2.0(1)
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Personal buying guide
Which watering spike fits?
Question 1 of 2
What size is the pot?
The best watering spikes in detail
Our view
The Artiwell six-pack is £12.99 and prints a terracotta size of 20.32 × 5.08 × 5.08 cm, a long cone for a patio tub rather than a windowsill herb. The star line is 4.7 from 18 reviews, a thin file beside packs with 75 or 1,045 ratings. One UK review reports about 4 to 5 days from a 75 cl wine bottle, and another says the water was gone in 2 days. The listing itself gives no day count. One buyer broke three spikes while pushing them into the ground before fitting a bottle, and another could not seat the bottles, so water poured out the side. A review that describes a four-pack of coloured mushroom shapes does not match this listing and is not a specification. It can be a low outlay for a large pot if the neck seats at the sink, and it is a weak choice when you want a long review record.
Pros
- £12.99 for six terracotta cones
- Stated size 20.32 × 5.08 × 5.08 cm
- One UK review timed about 4 to 5 days from 75 cl
- Material field says terracotta
Cons
- 4.7 from only 18 reviews
- Another review emptied in 2 days
- Spikes snapped when forced in, and some bottles would not seat
- No day count in the bullets
Best for: A large pot when £12.99 is the budget and you will seat the bottle at the sink before you travel.
Less suitable: Anyone who needs more than 18 reviews, or a pot too narrow for a 20 cm cone.
Specifications
- Model
- Artiwell terracotta 6-pack
- Brand
- Artiwell
- Price
- ∼£13
- Customer rating
- 4.7/5(18)
- Pack size
- 6
- Material
- Terracotta
- Size
- 20.3 × 5.1 × 5.1 cm
- Reservoir
- Bottle or cone
- Own bottle
- Yes
- Soak stated
- No
- Weight
- 0.96 kg
- Valve
- No
Common questions
Is the seller’s material clay?
Yes. The title and the bullets say terracotta, and a listing question asks if it is made of clay.
Does the listing state a runtime in days?
No. A UK review on the page reports about 4 to 5 days from a 75 cl wine bottle. Another says the water was gone in 2 days.
What broke in UK reviews?
One buyer broke three spikes while pushing them into the ground before fitting a bottle. Another could not seat the bottles, so water poured out the side.
Our view
Across 99 amazon.co.uk reviews, the JQTOP eight-pack at £16.99 is the clay bottle spike people set under wine, beer and some 1-litre and 2-litre bottles for a few days away. The seller says seepage slows when the compost is moist and that a litre lasts about 7 days, which you should test on your own pot before you travel. The title says terracotta, while the material field says Plastic, so the listing does not agree with itself, though UK reviews still describe terracotta. No single-piece size is printed. The sister listing of the same model number is described as large for small and medium pots, and this page prints no soak time. Use it on a medium or large container after a sink test of the neck, and plan a shorter trip than the 7-day line if the weather is hot.
Pros
- 4.6 from 99 amazon.co.uk reviews
- Pack of eight at £16.99
- UK reviews name wine, beer and some 1-litre and 2-litre bottles
- Seller describes seepage that slows when the compost is moist
Cons
- Material field says Plastic while the title says terracotta
- No single-piece size and no soak time on the listing
- Seller’s 7 days per litre is a claim you still have to test
Best for: Medium and large pots when you want the longer JQTOP review file and you will test the bottle at the sink.
Less suitable: A windowsill herb, or anyone who needs the material field to say terracotta.
Specifications
- Model
- JQTOP 8-pack, 99 reviews
- Brand
- JQTOP
- Price
- ∼£17
- Customer rating
- 4.6/5(99)
- Pack size
- 8
- Material
- Plastic
- Reservoir
- Own bottle
- Own bottle
- Yes
- Claimed runtime
- 7 days/litre
- Soak stated
- No
- Weight
- 1.12 kg
- Valve
- No
Common questions
Does the listing say these work with wine bottles?
A listing question asks that, and the seller says you place a water bottle or a plastic bottle on the spike. UK reviews on this ASIN name wine, beer and some 1-litre bottles.
What material is printed on the listing?
The title says terracotta. The technical details material field says Plastic. UK reviews describe terracotta.
How long does the seller say a litre lasts?
The seller says about 7 days, depending on the plant, soil, humidity and temperature, and says to test first. That is a seller claim.
Our view
The Bamworld six-pack at £12.99 is an unglazed cone stated at 5.49 × 5.49 × 17.78 cm, and 75 amazon.co.uk reviews give it 4.6. UK reviewers name beer, wine, squash and, in one case, a 2-litre bottle, and they call the cones wider than expected, which puts them in open soil or a large pot rather than a small one. The seller says porous clay releases water as the compost dries and that a fill lasts multiple days, without printing a number. One UK review timed squash bottles at 2 to 3 days in the summer 2026 heat. A reviewer plans to make a hole first, which is how these cones stay in one piece. In this set it is the top pick for a large patio pot when you want a printed length, a mid price and a review file in the dozens. It is the wrong spike for a windowsill herb.
Pros
- £12.99 for six, with a stated length of about 18 cm
- 4.6 from 75 reviews
- UK reviews name beer, wine, squash and a 2-litre bottle
- Material field says terracotta
Cons
- Wider than reviewers expected, so small pots are a poor match
- A summer review timed 2 to 3 days, shorter than a vague multiple days
- No day count in the seller bullets
- Bottles are not in the box
Best for: A large patio pot or open soil when you can test a beer, wine or squash bottle before you go.
Less suitable: Small houseplants, bonsai, and a hot week you have not timed yourself.
Specifications
- Model
- Bamworld terracotta 6-pack
- Brand
- Bamworld
- Price
- ∼£13
- Customer rating
- 4.6/5(75)
- Pack size
- 6
- Material
- Terracotta
- Size
- 5.5 × 5.5 × 18 cm
- Reservoir
- Own bottle
- Own bottle
- Yes
- Claimed runtime
- Multiple days
- Soak stated
- No
- Weight
- 0.89 kg
- Valve
- No
Common questions
What bottles do UK reviews name?
Beer, wine, squash and, for one buyer, a 2-litre bottle. The seller says a standard bottle and does not include one.
Are they described as narrow?
No. UK reviews call them wider than expected and better in open soil or large pots than in small pots. The stated size is 5.49 x 5.49 x 17.78 cm.
Does the seller give a day count?
The seller says multiple days and does not print a number. A UK review timed squash bottles at 2 to 3 days in the summer 2026 heat.
Our view
This is the same JQTOP model, 685376627860, listed at £18.99 with 4.6 from 20 reviews rather than the £16.99 pack with 99. UK reviews name beer, a 750 ml S.Pellegrino bottle and some 2-litre bottles, and they call the cones larger than expected, a poor fit for small and medium pots. One review says a wine bottle in full sun heats up and mentions a fire risk, and another prefers a plastic bottle because glass is heavy. The London Fire Brigade says glass in direct sun can start fires, so shade the pot or use plastic outdoors in a dry spell. Reviews also mention a small tool set for a pilot hole, which is how you avoid snapping dry clay. Choose this ASIN on a day when it undercuts the other JQTOP listing. On 15 October 2026 it did not.
Pros
- Same model number as the larger JQTOP review file
- UK reviews name beer, 750 ml sparkling water and some 2-litre bottles
- Reviews mention a small tool for a pilot hole
- Seller text matches the other JQTOP pack on seepage
Cons
- £18.99 on the capture date, £2 more than the sister listing
- Only 20 reviews
- Described as too large for small and medium pots
- One UK review flags a glass bottle heating in full sun
Best for: A large outdoor pot if this listing is the cheaper of the two JQTOP packs on the day, and you use a plastic bottle in sun.
Less suitable: Small and medium pots, or a buyer who can get the same model with 99 reviews for less.
Specifications
- Model
- JQTOP 8-pack, 20 reviews
- Brand
- JQTOP
- Price
- ∼£19
- Customer rating
- 4.6/5(20)
- Pack size
- 8
- Reservoir
- Own bottle
- Own bottle
- Yes
- Claimed runtime
- 7 days/litre
- Soak stated
- No
- Weight
- 1.31 kg
- Valve
- No
Common questions
Is this the same model as the other JQTOP pack?
Yes. Both listings print model 685376627860 and the same seller text. This one is £18.99 with a pack weight of 1.31 kg. The other captured pack is £16.99 and 1.12 kg.
Do UK reviews mention a fire risk?
One UK review says a wine bottle in full sun heats up, with a fire risk. Another prefers a plastic bottle because glass is heavy.
Are the cones described as small?
UK reviews call them larger than expected and a poor fit for small and medium pots. The listing does not print a single-piece size.
Our view
The Artiwell eight-pack at £15.99 states a terracotta cone of 5.49 × 5.49 × 17.78 cm and tells you to soak for 1 to 2 hours, make a pilot hole and set the opening flush with the compost. Wine bottles are called the best long-neck fit, and they must sit firmly without being too heavy. Stars are 4.4 from 34 reviews. The bullets do not give a day count. One UK review found a basil pot nearly empty after two days when no large bottle was used. Several reviews describe a four-pack and prices around £8 to £9.99, which are not this captured eight-pack at £15.99. In this set it is the best value when you want eight cones with a printed soak and a known length, once you set those older four-pack comments aside and test a bottle before you travel.
Pros
- £15.99 for eight cones with a stated length of about 18 cm
- Soak of 1 to 2 hours and a pilot-hole method in the seller text
- 4.4 from 34 reviews
- Wine bottles named as the preferred long neck
Cons
- Several UK reviews describe a four-pack at about £8 to £9.99
- No seller day count
- A basil pot was nearly empty after two days without a large bottle
- An 18 cm cone is wide for a small pot
Best for: Eight large pots when you will follow the 1 to 2 hour soak and you can ignore older four-pack reviews.
Less suitable: A small herb pot, or a buyer who needs every review on the page to describe this eight-pack.
Specifications
- Model
- Artiwell terracotta 8-pack
- Brand
- Artiwell
- Price
- ∼£16
- Customer rating
- 4.4/5(34)
- Pack size
- 8
- Material
- Terracotta
- Size
- 5.5 × 5.5 × 18 cm
- Reservoir
- Own bottle
- Own bottle
- Yes
- Soak stated
- Yes
- Soak time
- 1–2 hours
- Weight
- 1.25 kg
- Valve
- No
Common questions
How does the seller say you fit them?
Soak for 1 to 2 hours, make a pilot hole, set the opening flush with the soil, and do not push hard. Wine bottles are called the best choice.
Does the listing state how many days a fill lasts?
A listing question asks, and the bullets do not give a day count. A UK review found a basil pot nearly empty after two days when no large bottle was used.
Is every review about this 8-pack?
The captured title is an 8-pack at £15.99. Several UK reviews describe a 4-pack and prices around £8 to £9.99. Those figures are not the specification of this listing.
Our view
The celtty eight-pack at £18.99 is the clay set whose seller tells you to soak for 5 minutes, set the cone in the compost and invert a wine, beer or soda bottle. The claimed run is 6 to 7 days. Stars are 4.4 from only 8 reviews. The item dimensions say 8 × 8 × 8 cm, while UK reviews describe about 4 to 4.5 inches long and about 2 inches across, so you are looking at a shorter piece than the 18 cm cones. One review broke a spike on a full 1-litre bottle. Frost resistance is seller text, and no standard number is printed. The shorter length can suit a modest pot if you soak it and make a pilot hole, and eight reviews are too few to treat the 6-to-7-day line as a plan for leaving.
Pros
- Seller prints a 5-minute soak and a bottle step
- UK reviews describe a shorter cone, about 4 to 4.5 inches
- Clay is named as the material
- Seller names wine, beer and soda bottles
Cons
- 4.4 from only 8 reviews
- £18.99 for a short review file
- A full 1-litre bottle broke a spike in one review
- Frost resistance has no standard number
Best for: A modest pot when you want a shorter clay cone and you will soak it before you push.
Less suitable: A holiday you cannot check, or a buyer who wants a review file in the dozens.
Specifications
- Model
- celtty terracotta 8-pack
- Brand
- celtty
- Price
- ∼£19
- Customer rating
- 4.4/5(8)
- Pack size
- 8
- Material
- Clay
- Size
- 8 × 8 × 8 cm
- Reservoir
- Own bottle
- Own bottle
- Yes
- Claimed runtime
- 6–7 days
- Soak stated
- Yes
- Soak time
- 5 min
- Weight
- 0.8 kg
- Valve
- No
Common questions
Does the seller say these fit every bottle?
The seller says any standard wine, beer or soda bottle. A listing question asks if that is true. One UK review broke a spike on a full 1-litre bottle.
What size is printed?
The item dimensions are 8 x 8 x 8 cm and the weight is 800 g. UK reviews describe about 4 to 4.5 inches long and about 2 inches across.
Is frost resistance a stated standard?
The seller says frost-resistant terracotta. No standard number is printed on the listing.
Our view
The Ruichi set is four watering globes at £12.99, each with a stated 500 ml chamber on a terracotta spike, so you fill the globe rather than a drinks bottle. The seller says you insert the spike with no tools and claims up to 2 weeks from that 500 ml. None of the nine UK reviews in the file counts a measured fortnight, and the star line is 4.2 from 17 reviews. One review says that after three months the globes came off the clay spikes and would not refit. Another says the caps do not fit properly. The number-of-items field says 1 while the title says four pieces. It can cover a desk or balcony pot when the cap seals and 500 ml is enough for that plant, and it is a weak holiday plan once the globe will not stay on the spike.
Pros
- Globe included, stated capacity 500 ml
- £12.99 for four
- No drinks bottle to balance in the pot
- Seller describes a terracotta spike that you insert and fill
Cons
- Up to 2 weeks is a seller claim with no measured fortnight in the UK reviews
- Caps that do not fit, and globes that came off after three months
- 4.2 from 17 reviews
- Pack-count fields disagree
Best for: A desk or balcony pot when you want a closed 500 ml chamber and the cap seals.
Less suitable: A week away if the cap leaks, or a thirsty patio tomato that will empty 500 ml quickly.
Specifications
- Model
- Ruichi 500 ml globes
- Brand
- Ruichi
- Price
- ∼£13
- Customer rating
- 4.2/5(17)
- Pack size
- 4
- Material
- PP, terracotta
- Size
- 500 ml
- Reservoir
- 500 ml globe
- Own bottle
- No
- Claimed runtime
- Up to 2 weeks
- Soak stated
- No
- Weight
- 0.45 kg
- Valve
- No
Common questions
Do you need a wine bottle?
No. The reservoir is the globe. The seller states 500 ml and says you insert the terracotta spike and fill the globe.
How long does the seller say a fill lasts?
Up to 2 weeks. That is a seller claim. None of the nine UK reviews in the file counts a measured fortnight.
What failed after use?
One UK review says that after three months the globes came off the clay spikes and would not refit. Another says the caps do not fit properly.
Our view
Across 1,045 amazon.co.uk ratings the WUJUN 10-pack scores 4.1, at £24.69. The seller prints a ceramic cone of about 5.5 × 18 cm, a soak of 1 to 2 hours, and about 7 to 10 days per litre. That day line is a seller claim. In the first 50 UK reviews the repeated faults are spikes smashed in the box, snaps when the cone is forced into soil, walls crumbling within weeks, bottles emptying overnight, and one pack that was not porous. Long-neck bottles are the stated fit, with wine called the best choice, and reviews also name tonic, soda, 500 ml glass and 750 ml wine. The item-length field says 2.17 inches, which does not match 18 cm. Recommended uses include aquarium decoration, which these plant reviews do not assess. It is the pack to read when you want the longest file and you will soak, make a pilot hole and reject a cracked cone on arrival.
Pros
- 4.1 from 1,045 reviews, the largest file in the set
- Printed size about 5.5 × 18 cm and a 1 to 2 hour soak
- Seller names long-neck and wine bottles
- Ten cones in the pack
Cons
- £24.69, the highest shelf price in the capture
- Smashed, snapped and crumbling cones in the UK review sample
- Bottles that emptied overnight, and one pack that was not porous
- Item length of 2.17 inches clashes with 18 cm
Best for: A large pot when you will soak for 1 to 2 hours, make a pilot hole, and send back a cracked cone.
Less suitable: Anyone who needs the cones to arrive intact as the default, or who will treat 7 to 10 days as guaranteed.
Specifications
- Model
- WUJUN terracotta 10-pack
- Brand
- WUJUN
- Price
- ∼£25
- Customer rating
- 4.1/5(1,045)
- Pack size
- 10
- Material
- Ceramic
- Size
- 5.5 × 18 cm
- Reservoir
- Own bottle
- Own bottle
- Yes
- Claimed runtime
- 7–10 days/litre
- Soak stated
- Yes
- Soak time
- 1–2 hours
- Weight
- 1.16 kg
- Valve
- No
Common questions
How does the seller say you fit them?
Soak for 1 to 2 hours, make a pilot hole, set the opening flush with the soil, then invert the bottle. The seller says not to push hard.
What do the first 50 UK reviews repeat as faults?
Spikes smashed in the box, snaps when forced into soil, walls crumbling within weeks, bottles emptying overnight, and one pack that was not porous.
Does the listing mention an aquarium?
Yes. Recommended uses include aquarium decoration. That use was not assessed from the plant-watering reviews.
Our view
The Apexrich 20-pack is the lowest shelf price in the set at £5.99, and both UK reviews leave it at 2.0. The seller says the neck is about 2.8 cm outer diameter including the thread, and that mineral-water and purified-water bottles do not fit. One buyer returned the pack because no bottle fitted. The other said the tap is all or nothing, easy to strip, and only pushes onto the neck. The claimed drip is one drop every 60 to 90 seconds, and the claimed run is 1 to 15 days, which is a seller range rather than a timed holiday. The power field says Solar Powered, while the bullets describe a plastic bottle valve with no panel. You also pierce or cut the bottle so air can enter. The two available reviews did not show a valve that both seats and regulates.
Pros
- £5.99 for 20 pieces, the lowest price in the set
- A printed neck size of about 2.8 cm
- Seller states which bottles to avoid
- A claimed drip interval is at least written down
Cons
- 2.0 from 2 reviews: no bottle fitted, or a tap that is fully open or fully shut
- Power field says Solar Powered on a valve with no panel
- Mineral-water bottles are excluded
- You have to pierce the bottle
Best for: A buyer who already owns a bottle of about 2.8 cm and will watch the first hour.
Less suitable: Mineral-water bottles, a best-value substitute for clay, or any trip you will not watch.
Specifications
- Model
- Apexrich plastic 20-pack
- Brand
- Apexrich
- Price
- ∼£6
- Customer rating
- 2.0/5(2)
- Pack size
- 20
- Material
- Plastic
- Reservoir
- Own bottle
- Own bottle
- Yes
- Claimed runtime
- 1–15 days
- Soak stated
- No
- Weight
- 0.06 kg
- Valve
- Yes
Common questions
Which bottles does the seller exclude?
The warning says about 2.8 cm outer diameter including the thread, and not mineral-water or purified-water bottles.
Is it solar powered?
The power field says Solar Powered. The bullets describe a plastic valve on a bottle, with no solar panel.
What did the two UK reviews report?
One buyer returned the pack because no bottle fitted. The other said the tap is all or nothing, easy to strip, and only pushes onto the neck.
Our view
The molicorl set is six clear plastic tulip globes at £8.99. The title says 200 ml and about 25 cm, and the pack weighs 50 g. You fill the globe rather than a drinks bottle. The only UK review says only 2 of 6 worked and that the buyer would not purchase again, which is the whole of a 2.0 from 1 rating. The best-seller rank sits in Home & Kitchen and in Scrapbooking Stickers, and a unit-count field of 120 conflicts with a six-piece title. The seller says several days and does not give a number. A 200 ml chamber is a small drink for a tomato in a grow bag on a hot patio. The only measured result on the page is two working bulbs out of six.
Pros
- Globe included, so you do not balance a wine bottle
- Title states 200 ml and about 25 cm
- £8.99 for six
- No power supply
Cons
- 2.0 from 1 review, and only 2 of 6 worked
- Pack weight 50 g for six pieces
- Ranked under Scrapbooking Stickers
- Unit count 120 conflicts with the six-piece title
Best for: A tiny desk plant only if you can see which of the six bulbs actually releases water.
Less suitable: Holiday cover, hanging baskets, or any plant that drinks more than 200 ml in a day.
Specifications
- Model
- molicorl 200 ml globes
- Brand
- molicorl
- Price
- ∼£9
- Customer rating
- 2.0/5(1)
- Pack size
- 6
- Material
- Plastic
- Size
- 200 ml, 25 cm
- Reservoir
- 200 ml globe
- Own bottle
- No
- Claimed runtime
- Several days
- Soak stated
- No
- Weight
- 0.05 kg
- Valve
- No
Common questions
Do you add your own bottle?
No. The title describes 200 ml clear plastic bulbs. You fill the globe.
Where is the best-seller rank filed?
192,652 in Home & Kitchen and 1,634 in Scrapbooking Stickers. There is no garden rank in the file.
What did the UK review say?
The only UK review says only 2 of 6 worked and that the buyer would not purchase again. The star line is 2.0 from 1 review.
Our view
The Puthivar eight-pack is £7.99 for cones the seller describes as ceramic plus polypropylene, 11 × 4 × 4 cm, with a pack weight of 220 g. The capture has no customer-review line and no review body, so a star rating is not available. The seller says most regular bottles fit and that you assemble the bottle and insert the spike with no tools. A listing question asks about wine or glass bottles, and nothing in the file confirms a fit. No refill interval is answered. At this price you are buying a specification sheet rather than a record of UK holidays. Wait for reviews, or test one neck at the sink and use your rights under the Consumer Rights Act 2015 if the cones are not of satisfactory quality.
Pros
- £7.99 for eight pieces
- Stated size 11 × 4 × 4 cm, shorter than the 18 cm cones
- Seller names a ceramic cone plus polypropylene parts
- Pack weight 220 g, so the pieces are light
Cons
- No star line and no UK review bodies in the capture
- No confirmed bottle fit
- No stated runtime
- Title says terracotta while the material line adds polypropylene
Best for: Only a sink test of a bottle you already own, if you accept there is no review record yet.
Less suitable: A holiday, a greenhouse, or any trip you cannot watch.
Specifications
- Model
- Puthivar ceramic 8-pack
- Brand
- Puthivar
- Price
- ∼£8
- Pack size
- 8
- Material
- Ceramic, PP
- Size
- 11 × 4 × 4 cm
- Reservoir
- Own bottle
- Own bottle
- Yes
- Soak stated
- No
- Weight
- 0.22 kg
- Valve
- No
Common questions
What is the stated material?
The seller says a ceramic cone plus polypropylene parts. The title says terracotta. Pack weight is 220 g for eight.
Is there a star rating?
No customer-review line and no review bodies are in the saved listing, so the rating is not available.
Does the seller name a bottle size?
The seller says most regular bottles. A listing question asks about wine or glass bottles. No review confirms a fit.
Our view
The Muvic pack is 20 plastic valve spikes at £8.89, ten blue and ten green, each about 14 × 2 × 2 cm. The seller says an adjustable control valve and that you place the spike in the compost under a plastic bottle. No neck diameter is printed, and the capture has no star line and no review bodies. The included-components field says no, while the title says 20 pieces, and there is no garden rank in the file. A valve is a different mechanism from porous clay, and an open valve can keep dripping into compost that is already wet. With nothing from UK buyers, you cannot judge a holiday from this page. It is only a cheap experiment if you already accept that the valve may sit fully open or fully shut.
Pros
- 20 pieces at £8.89
- Stated length about 14 cm
- Seller claims an adjustable valve
- Uses a plastic bottle you already have
Cons
- No star line and no review bodies
- No neck diameter
- Included-components field says no
- No garden rank in the capture
Best for: A supervised experiment on one pot, if you can return a valve that does not regulate.
Less suitable: Any absence where a stuck-open valve would flood the compost.
Specifications
- Model
- Muvic plastic 20-pack
- Brand
- Muvic
- Price
- ∼£9
- Pack size
- 20
- Material
- Plastic
- Size
- 14 × 2 × 2 cm
- Reservoir
- Own bottle
- Own bottle
- Yes
- Soak stated
- No
- Weight
- 0.4 kg
- Valve
- Yes
Common questions
What does the seller say the valve does?
The seller says the control valve adjusts how quickly water is released. No review in the file tests that claim.
Which bottles are named?
The seller says plastic bottles. No diameter is printed.
Is there a star rating?
No customer-review line and no review bodies are in the saved listing.
How we compared
For this comparison we read 12 amazon.co.uk watering-spike listings captured on 15 October 2026, plus the public UK sources below. The score is an editorial figure from stars, review volume, listing clarity, practical fit and price. It is not the star rating times 20. A missing star line scores 0. We did not run a garden trial.
1
Stars
35%Amazon stars out of 5, scaled to 35 points. No star line scores 0, and the whole score stays 0.
2
Review volume
25%Up to 25 points. 1,000 or more reviews score 25. A file of 50 to 249 scores 12. No reviews score 0.
3
Listing clarity
20%Up to 20 points for a piece size that matches the title, an agreed material, a named bottle or chamber, and a printed soak or valve step. A clash loses those points.
4
Practical fit
10%Up to 10 points when UK reviews name a bottle and a pot. Snaps, overnight empties, caps that will not seat, or a single 2-star line lose points.
5
Shelf price
10%Up to 10 points from the amazon.co.uk price on 15 October 2026. A pack under £9 with a 2-star file or no reviews does not climb on price alone.
Independent review
Last updated: October 2026
10 sources checked
Watering spikes buying guide
Choose the type, then the pot, then the bottle you can seat at the sink. A seller day count is a claim until you time it on your own plant.
What is a watering spike?
A watering spike is a pointed insert that moves water from a drinks bottle, or from a small chamber, into compost in a pot, grow bag or allotment bed. UK shoppers buy one for a few days away, or when containers dry between waterings. The Royal Horticultural Society says containers in a dry spell may need water every day. These 12 amazon.co.uk listings, captured on 15 October 2026, mix clay bottle cones, plastic bottle valves, and globes that hold their own water.
Best for
- Medium or large outdoor pots when you can test a bottle before you travel
- A few days away, once you have timed a fill on that plant
Not ideal for
- A small houseplant or bonsai, where an 18 cm cone is the wrong size
- A trip you cannot watch, if the only evidence is a seller day count
Mistakes to avoid
- 1
Forcing a dry spike
Pushing a dry cone in with the bottle already on it is how spikes snap. Soak the clay when the listing says so, make a pilot hole, then add the bottle. Do not force it.
- 2
Leaving on a seller day count
Lines of 7 to 10 days per litre, 6 to 7 days, or up to 2 weeks are seller claims. A rule of thumb from UK reviews is a few days to about a week from a 750 ml wine bottle in summer, and less in heat.
- 3
Using a large cone in a small pot
The repeated clay cone is about 18 cm long and about 5.5 cm across. UK reviewers call that too wide for a small houseplant or bonsai. A windowsill herb is the wrong job for that size.
What to weigh up
Type and pot size
HighType is the first cut because the three mechanisms in this set do not hold the same water. Clay seeps through an unglazed wall. Homes & Gardens describes the olla idea those cones copy: water moves out when the soil is dry. Plastic drippers, Muvic and Apexrich, use a valve and an air hole in the bottle. An open valve can keep dripping into compost that is already wet. Globes hold only their own water. Ruichi claims 500 ml. The molicorl title says 200 ml.
Bottle fit and a timed trial
HighBottles are not in the packs. Test the neck at the sink before you travel. Long necks are the ones that seat on the clay pages: 750 ml wine, beer, tonic and soda. A 2-litre bottle fits on some clay listings and misses on others. Apexrich states about a 2.8 cm outer diameter, including the thread, and is not for mineral-water or purified-water bottles. One of its two UK reviews returned the pack because no bottle fitted. The other said the tap is fully open or fully shut.
Which option suits you?
Three typical situations, each with a recommendation from this comparison.
Small houseplants
An 18 cm cone is the wrong size for a windowsill herb or bonsai. celtty’s UK reviews describe a shorter piece, about 4 to 4.5 inches, and the seller prints a 5-minute soak. The file is only 8 reviews.
A hosepipe ban
In England and Wales a hosepipe ban can stop you watering plants with a hose. Filling a bottle at the kitchen tap is a different act. Read your own notice, then test the Bamworld cone before you rely on it.
Common questions about watering spikes
Which watering spike is the top pick for a large pot?
The top pick is the Bamworld six-pack at about £12.99. The listing states a terracotta cone of 5.49 × 5.49 × 17.78 cm, and 75 amazon.co.uk reviews give it 4.6. UK reviewers name beer, wine, squash and a 2-litre bottle, and they call the cones wider than expected, which suits a large patio pot or open soil. The seller says multiple days and does not print a number. One UK review timed squash bottles at 2 to 3 days in the summer 2026 heat.
How much does a watering spike cost on amazon.co.uk?
On 15 October 2026 these 12 listings ran from about £5.99 to £24.69. Entry packs, about £6 to £9, are Apexrich at £5.99, Puthivar at £7.99, Muvic at £8.89 and molicorl at £8.99, with weak or missing review evidence. Mid packs, about £13 to £19, include Bamworld and the Artiwell six-pack at £12.99, Ruichi at £12.99, the Artiwell eight-pack at £15.99, JQTOP at £16.99 and £18.99, and celtty at £18.99. WUJUN is £24.69 for 10. These are shelf prices from that capture.
What should you check before you buy watering spikes?
Check the type first. Clay seeps through an unglazed wall. A plastic spike uses a valve. A globe holds only its own water, 500 ml on Ruichi or 200 ml in the molicorl title. Then check pot size. The repeated clay cone is about 18 cm long and about 5.5 cm across, which UK reviewers call too wide for a small houseplant. Test the bottle at the sink. WUJUN is 4.1 from 1,045 ratings, while Puthivar and Muvic have no star line in this capture. Seller day counts stay claims.
How long will a bottle on a watering spike last?
There is no lab average on this page. A rule of thumb from UK reviews: a cone alone is often a day or two, and a 750 ml wine bottle in summer is often a few days to about a week. Heat shortens that. An Artiwell six-pack review reported about 4 to 5 days from 75 cl, and another said the water was gone in 2 days. Do not treat a seller line of 7 to 10 days per litre, or up to 2 weeks, as a plan for leaving.
Do watering spikes fit every bottle?
No. Bottles are not in the packs. Long necks are the ones UK reviews name on the clay cones: 750 ml wine, beer, tonic and soda. A 2-litre bottle fits on some clay pages and misses on others. Apexrich states about a 2.8 cm outer diameter, including the thread, and says mineral-water and purified-water bottles do not fit. One of its two UK reviews returned the pack because no bottle fitted. Seat the neck at the sink. If water runs down the side, that bottle does not fit.
Can you use watering spikes during a hosepipe ban?
In England and Wales, section 76 of the Water Industry Act 1991 lets a water company ban watering plants with a hosepipe. Ofwat says the fine can be up to £1,000, and a watering can is still allowed. The Water Use (Temporary Bans) Order 2010 treats filling a container by hosepipe as using a hosepipe. Filling a bottle at the kitchen tap is a different act. Read your own notice. An English ban does not apply in Scotland. See hosepipe ban: what you can still water.
Are terracotta spikes safe in sun and frost?
The London Fire Brigade says glass in direct sun can start fires. One UK review of the dearer JQTOP pack says a wine bottle in full sun heats up and mentions a fire risk. Shade the pot, or use a plastic bottle, outdoors in a dry spell. Lift the spikes before hard frost. celtty’s frost-resistant line is seller text, and no British Standard for frost-resistant showed up on these listings. If there is a fire, call 999.
Is a clay cone or a plastic valve the better spike?
Clay seeps through an unglazed wall and slows when the compost is moist. A plastic valve, here Muvic and Apexrich, is a tap on a bottle. An open valve can keep dripping into compost that is already wet. Apexrich’s two UK reviews did not show a valve that both seats and regulates, and its power field says Solar Powered on a product with no panel. Muvic has no star line in the capture. In this set the reviewed holiday comments sit on the clay cones, not on the plastic valves.
Our verdict
For a large patio pot, the top pick is the Bamworld six-pack at about £12.99: a stated terracotta length of about 18 cm, and 4.6 from 75 reviews. UK reviewers call it wider than expected, and one summer review timed 2 to 3 days. The best value is the Artiwell eight-pack at about £15.99, with a printed soak of 1 to 2 hours and the same sort of length, once older four-pack comments are set aside. The £5.99 Apexrich pack is cheaper and scores 16. The other ten have no award.
Best value
View offer
Artiwell terracotta 8-pack
About £15.99 for eight cones with a printed 1 to 2 hour soak and a stated length.
Editorial
DIY & tools editor
DIY & toolsamazon.co.uk listingsGarden watering
Peter F. is the editor for DIY & tools at productscompared.co.uk. Comparisons in this category are checked against amazon.co.uk listings, review evidence and public UK sources.
Updated: October 2026
10 sources checked
Guides to watering spikes
Guides on what to look for, how to use a product, and common mistakes.
Best watering spikesWho the top pick is for, and who should skip a tiny pot or an unevidenced plastic valve.Watering spikes buying guideClay, plastic, a globe, or none: size, bottle, holiday length and frost before any brand is ranked.Watering spikes for a holidayWhether a bottle is enough for this trip, plus shade and a backup person.How to use watering spikesSoak, make a pilot hole, seat the bottle, then watch for several days.Watering spikes or plasticClay seepage against a plastic valve: control, fit, breakage and mess.
Related comparisons
Sources
Public UK sources for this comparison, plus the 12 amazon.co.uk listings captured on 15 October 2026.
- RHS, how to look after your garden on holiday (retrieved 15 October 2026)
- RHS, how to water containers (retrieved 15 October 2026)
- Water Industry Act 1991, section 76 (retrieved 15 October 2026)
- Water Use (Temporary Bans) Order 2010 (retrieved 15 October 2026)
- Ofwat, hosepipe bans and non-essential use bans (retrieved 15 October 2026)
- SPICe Spotlight, why there are no hosepipe bans in Scotland (retrieved 15 October 2026)
- Citizens Advice, return faulty goods (retrieved 15 October 2026)
- Consumer Rights Act 2015, section 9 (retrieved 15 October 2026)
- London Fire Brigade, grass and wildfires (retrieved 15 October 2026)
- Homes & Gardens, garden ollas (retrieved 15 October 2026)
This page contains affiliate links to amazon.co.uk with the tag pcuk26-21. If you buy through them, we may earn a commission at no extra cost to you. Prices, stars and review counts come from the amazon.co.uk listings captured on 15 October 2026. We did not run a garden trial, and we do not promise the cheapest price.