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Top pick: Relaxdays herb spiral, 43 cm, 3 sections – Only listing in this set with a stated height above the 20 cm ring line, a pre-assembled three-section pyramid at about £60.90, with 5.0 from 3 reviews that do not prove durability. Best value: Relaxdays herb spiral, 30/60/90 cm rings – Lowest shelf price in the set, about £47.90, for outdoor rings at 90 × 90 × 20 cm, not a thick-walled spiral. Updated October 2026.
A herb spiral is a coiled raised bed that puts sun-loving herbs on a dry crown and moisture-loving herbs at a cooler foot, inside one footprint. In a UK garden the working size in beekeeping guidance is a circle about 2 m across, in stone, brick or wood. Much lower kits use the same name: concentric rings about 20 cm high, or a compact pyramid a little over 40 cm.
You tell a suitable herb spiral from the dimension line: footprint, stated height and number of levels. Do not add ring diameters and call the sum a tower. Rosemary and thyme fail in winter wet, so look for drainage holes and plan grit in the compost. Many steel listings leave holes unstated. A rust-coloured finish is a colour, not a thickness.
In England, a platform over 30 cm, a flat, or a listed garden needs the local authority. A low kit is a different question from a tall masonry coil. How to choose a coil, rings or a pyramid is set out in the [herb spiral buying guide](/hub/plant-accessories/herb-spiral/sub/herb-spiral-buying-guide).
A herb spiral is a coiled raised bed that puts sun-loving herbs on a dry crown and moisture-loving herbs at a cooler foot, inside one footprint.
A herb spiral is a coiled raised bed that puts sun-loving herbs on a dry crown and moisture-loving herbs at a cooler foot, inside one footprint. In a UK garden the working size in beekeeping guidance is a circle about 2 m across, in stone, brick or wood. Much lower kits use the same name: concentric rings about 20 cm high, or a compact pyramid a little over 40 cm.
You tell a suitable herb spiral from the dimension line: footprint, stated height and number of levels. Do not add ring diameters and call the sum a tower. Rosemary and thyme fail in winter wet, so look for drainage holes and plan grit in the compost. Many steel listings leave holes unstated. A rust-coloured finish is a colour, not a thickness.
In England, a platform over 30 cm, a flat, or a listed garden needs the local authority. A low kit is a different question from a tall masonry coil. How to choose a coil, rings or a pyramid is set out in the [herb spiral buying guide](/hub/plant-accessories/herb-spiral/sub/herb-spiral-buying-guide).
A herb spiral is a coiled raised bed that puts sun-loving herbs on a dry crown and moisture-loving herbs at a cooler foot, inside one footprint. In a UK garden the working size in beekeeping guidance is a circle about 2 m across, in stone, brick or wood. Much lower kits use the same name: concentric rings about 20 cm high, or a compact pyramid a little over 40 cm. You tell a suitable herb spiral from the dimension line: footprint, stated height and number of levels. Do not add ring diameters and call the sum a tower.
Relaxdays herb spiral, 43 cm, 3 sections (model 10053065) is a brown steel pyramid stated at 43 × 61 × 41 cm and 6.17 kg, with three sections, at about £60.90. The bullets say it is pre-assembled. amazon.co.uk shows 5.0 from 3 reviews. Both written texts are headed Germany and talk about delivery, a match to the pictures, easy setup and the look. Drainage, soil volume and indoor use are not stated. It is the top pick in this set because it is the only listing whose stated height is above the 20 cm ring line, not because three ratings prove durability.
Pros
Stated height 43 cm
Described as pre-assembled
5.0 on the star line
Cons
Only 3 ratings
Written reviews headed Germany
Drainage and capacity not stated
Best for: You want a compact three-section steel pyramid that arrives already assembled.
Less suitable: You want a 2 m rising coil, or a lower shelf price than about £60.90.
Relaxdays herb spiral, 30/60/90 cm rings (model 10052181_8278) is a three-piece brown steel set, rings about 30/60/90 cm, with a dimension line of 90 × 90 × 20 cm and a weight of 4.4 kg. The shelf price is about £47.90. The usage field says outdoor and the country field says China. amazon.co.uk shows 4.5 from 5 reviews. The four written texts are headed Germany. Three praise the idea and the look. One says the sheet is under 0.6 mm and very unstable. The capacity field is 127.23 litres, which matches one 90 cm by 20 cm cylinder rather than three pots. It is best value in this set on price, not a thick-walled spiral.
Pros
Lowest price in this set
Outdoor stated
Rings slot together
Cons
Dimension line is 20 cm high
One review calls the sheet unstable
Reviews headed Germany
Best for: You want the lowest-priced ring set in this comparison, and a 90 cm circle is enough.
Less suitable: You need a rising coil taller than 20 cm, or a sheet thickness in the specification.
Relaxdays herb spiral, 40/80/120 cm rings (model 10052181_8279) is the larger ring set: about 40/80/120 cm, dimension line 120 × 120 × 20 cm, 6.43 kg, about £51.90. The usage field says outdoor. amazon.co.uk shows 4.5 from 5 reviews, and the four written texts match the 90 cm listing, all headed Germany, including the note that the sheet is under 0.6 mm. The capacity field says 25.13 litres and is not reconciled with the stated size. A 120 cm by 20 cm cylinder is about 226 litres, so 25.13 litres is not the compost to order. It has no award in this set.
Pros
Largest footprint in this set
Outdoor stated
Rings slot together
Cons
Still 20 cm on the dimension line
Capacity field not reconciled
Same thin-sheet review as the smaller rings
Best for: You have a metre-plus circle and want the bigger ring diameters.
Less suitable: You want a taller spiral, a reconciled soil volume, or a price below about £47.90.
The bullets say the rings slot together for quick assembly and that it is then ready to use.
Is soil included?
The included-components line names a 3-piece herb ladder, not soil.
Will it rust over time?
The finish is listed as rust. The listing does not say how the steel will change, and a rust colour is not a corten grade or a thickness.
How we compared
Three amazon.co.uk listings are scored from the shelf price, the star line and the review count captured on 20 October 2026, plus how well the stated size matches a herb spiral. There is no laboratory test. Stars are the amazon.co.uk rating divided by 5, then multiplied by 40. The review sample scores 2 points when the count is between 1 and 9. Fit gives more points to a pre-assembled piece whose stated height is 43 cm than to a ring set whose dimension line is 20 cm high. Value follows the shelf price inside this set only. The top pick is the highest total, once. Best value is the highest value part among the rest, once.
1
Stars
40%
The amazon.co.uk star line is turned into points as (rating / 5) × 40, rounded. A listing with no star line would score 0. In this set the lines are 5.0 from 3 and 4.5 from 5.
2
Review sample
25%
The count behind the stars is scored in bands: 1,000 or more reviews is 25, 200 or more is 20, 50 or more is 12, 10 or more is 6, 1 to 9 is 2, and none is 0. All three listings fall in the 1 to 9 band, so each scores 2. A handful of ratings is not a UK consensus.
3
Fit as a herb spiral
25%
A pre-assembled three-section piece whose stated height is 43 cm scores 18. A 90 cm ring set whose dimension line is 20 cm high scores 13. A 120 cm ring set, same 20 cm line, with a capacity field that is not reconciled to the size, scores 12. Ring diameters are not added up to invent a tower.
4
Value in this set
10%
The lowest shelf price in the set, about £47.90, scores 8. The larger rings at about £51.90 score 6. The compact pyramid at about £60.90 scores 4. Value is compared only after the form is scored, and only inside these three prices.
Independent review
Last updated: October 2026
8 sources checked
Herb spiral buying guide
Start with the form, then the dimension line, then drainage, and only then the price. A 2 m masonry coil and a steel ring 20 cm high do not do the same job. Shelf prices in this capture run from about £47.90 to about £60.90. The top pick is the 43 cm pre-assembled pyramid. The best value is the lowest-priced ring set. Nothing on this page is a laboratory test.
What is a herb spiral?
A herb spiral is a coiled raised bed meant to give Mediterranean herbs a dry, sunny crown and moisture-loving herbs a cooler foot, inside one footprint. In guidance from the British Beekeepers Association, the working size is a circle about 2 m across, in stone, brick or wood, with an optional pond. Shoppers on amazon.co.uk also meet steel kits that use the same words for a much lower object. What matters is whether the dimension line matches the spiral you think you are buying.
Best for
A patio gardener who can live with a 20 cm ring and wants to fill it the same weekend
Someone who wants the only kit in this set stated above 20 cm, on a 61 × 41 cm base
A gardener with a metre-plus circle who wants the larger ring diameters
Not ideal for
A 2 m brick or stone coil with a dry crown and a small pond
A balcony where wet soil weight is unknown
Ordering compost from the 25.13 litre field on the 120 cm rings
Mistakes to avoid
1
Reading the rings as a tower
Upper, middle and lower on a 20 cm ring set are not a 60 cm spiral. Use the dimension line. Do not add 30, 60 and 90 cm and call the sum a height.
2
Ordering compost from 25.13 litres
That figure is on the 120 cm listing and is not reconciled. A 120 cm by 20 cm cylinder is about 226 litres. The 127.23 litre field on the 90 cm rings matches the outer cylinder, not three separate pots.
3
Treating five reviews as a UK durability test
The written reviews are headed Germany. One says the ring sheet is under 0.6 mm and unstable. That is not a specification, and it is not a UK consensus. Three to five ratings cannot carry a national verdict.
What to weigh up
Form, footprint and stated height
High
Choose the form before the finish. A rising coil in brick, stone or wood, about 2 m across in the British Beekeepers Association note, is a different product from concentric rings whose dimension line is 20 cm high, or from a pyramid stated at 43 cm. Upper, middle and lower on a ring listing are zones in a low circle. They are not storeys you add into a tower.
Read the dimension line as printed: 90 × 90 × 20 cm, 120 × 120 × 20 cm, or 41 × 61 × 43 cm.
Drainage, assembly and the review sample
High
Drainage and thickness are the gaps in this set. Rosemary and thyme fail in winter wet. The RHS wants holes in the container and up to 25% grit in a peat-free, soil-based mix. None of the three listings states drainage holes. A rust-coloured finish is not corten steel, a food-safety mark, or a known sheet thickness.
The ring bullets say the pieces slot together. The pyramid bullets say it is pre-assembled. Soil, plants, grit and a liner are not included.
Which option suits you?
Three typical situations, each with a recommendation from this comparison.
🪴
A patio that can live with 20 cm
You want a ring you can slot together and fill the same weekend, and a height of 20 cm is enough. Relaxdays herb spiral, 30/60/90 cm rings, at about £47.90, is the best value: the lowest shelf price here, outdoor on the listing, 4.5 from 5 reviews. The written reviews are headed Germany, and one calls the sheet unstable. Skip it if you need a coil taller than 20 cm.
You want a stated height above the 20 cm ring line, on a base of 61 × 41 cm, and you can accept a unit that arrives already built. Relaxdays herb spiral, 43 cm, 3 sections, at about £60.90, is the top pick. amazon.co.uk shows 5.0 from 3 reviews, both headed Germany. It is still not a 2 m brick or stone coil. Skip it if that masonry spiral is the job.
You have room for a circle about 120 cm across and you still accept a dimension line of 20 cm. Relaxdays herb spiral, 40/80/120 cm rings, at about £51.90, is the largest footprint here, with rings about 40/80/120 cm and 4.5 from 5 reviews headed Germany. The 25.13 litre capacity field does not match the size. It has no award. Skip it if you need a taller spiral.
The top pick is the Relaxdays herb spiral, 43 cm, 3 sections, at about £60.90. It is a pre-assembled steel pyramid stated at 43 × 61 × 41 cm and 6.17 kg, with three sections. amazon.co.uk shows 5.0 from 3 reviews. Both written reviews are headed Germany and do not describe a fault. It leads this set because the stated height is above the 20 cm ring line, not because three ratings prove it will last. This is not a laboratory test.
Which herb spiral is the best value?
The best value is the Relaxdays herb spiral, 30/60/90 cm rings, at about £47.90, the lowest shelf price in this set. It is three steel rings with a dimension line of 90 × 90 × 20 cm and a weight of 4.4 kg, and the listing says outdoor. amazon.co.uk shows 4.5 from 5 reviews. The written reviews are headed Germany. Three praise the idea and the look. One says the sheet is under 0.6 mm and very unstable. The price award is not a thickness award.
How much does a herb spiral cost?
Captured amazon.co.uk shelf prices for these three are about £47.90, about £51.90 and about £60.90. The 90 cm rings are the lowest. The 120 cm rings are about £51.90. The 43 cm pyramid is about £60.90. A check the same day still showed £47.90 and £51.90 including VAT, and a snippet for the pyramid showed £59.90 against the captured £60.90. Plastic spirals seen outside this set were about £14 to £53. Those figures are shelf checks, not a market-size claim.
What should I check before I buy a herb spiral?
Read the dimension line first: 90 × 90 × 20 cm, 120 × 120 × 20 cm, or 41 × 61 × 43 cm. Do not add ring sizes and call the total a tower. Then check whether the listing says outdoor, whether it is pre-assembled or slots together, and whether drainage holes or sheet thickness are stated. These three state neither holes nor a millimetre spec. A rust finish is not a corten grade. Three to five ratings, with written reviews headed Germany, are not a UK durability verdict.
Are these steel rings the same as a 2 m brick herb spiral?
No. British Beekeepers Association guidance describes a herb spiral as a circle about 2 m across, in stone, brick or wood, with an optional pond. The steel listings here are rings 20 cm high or a pyramid 43 cm high. Upper, middle and lower on a ring set are not a 60 cm tower. If you want that masonry coil, these kits are the wrong product. If the circle will not fit the patio, see the planting tower comparison.
Do herb spiral kits include soil and drainage holes?
Soil, plants, grit and a liner are not included. The 120 cm listing names a three-piece herb ladder, not compost. Drainage holes are not stated on these three listings. The RHS advises holes in a container and grit in a peat-free mix, because rosemary and thyme fail in winter wet. Do not order compost from the 25.13 litre field on the 120 cm rings. A 90 cm by 20 cm cylinder is about 127 litres, which matches that listing's 127.23 litre field as the outer cylinder, not three pots.
Do I need planning permission for a herb spiral in England?
For houses in England, Planning Portal guidance says a raised platform no more than 30 cm above ground can be permitted development if it stays off the principal elevation and inside the coverage limit. Listed buildings are excluded. Flats and maisonettes are outside those householder allowances. A 20 cm kit is under 30 cm. A tall masonry coil, a flat, or a listed garden needs the local authority. Scotland and Northern Ireland are not that England page. This is not legal advice.
Where should rosemary and mint go in a herb spiral?
On a classic coil, rosemary, thyme and sage want the dry sunny crown. Mint, parsley and coriander want the cooler side. The RHS says a rosemary pot should be at least 30 cm, with about 45 cm between plants in the ground, and that mint should be contained so it does not run. Use a peat-free soil-based compost with up to 25% grit. A Garden Organic note suggests cardboard under the base and about a week for the soil to settle. These steel kits do not name herb species.
Our verdict
The top pick is the Relaxdays herb spiral, 43 cm, 3 sections, at about £60.90. It is the only listing in this set with a stated height above the 20 cm ring line: a pre-assembled three-section pyramid at 43 × 61 × 41 cm. amazon.co.uk shows 5.0 from 3 reviews, and both written texts are headed Germany, which is too small a sample to prove durability. The best value is the Relaxdays herb spiral, 30/60/90 cm rings, at about £47.90, the lowest shelf price here. The dimension line is 90 × 90 × 20 cm, the listing says outdoor, and one review headed Germany calls the sheet unstable. The 120 cm rings have no award: the largest footprint, still 20 cm high, with a capacity field that does not match the size. None of these scores is a laboratory test.
Best overall
Relaxdays herb spiral, 43 cm, 3 sections
Only listing in this set with a stated height above the 20 cm ring line, a pre-assembled three-section pyramid at about £60.90, with 5.0 from 3 reviews that do not prove durability.
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
8 sources checked
Guides to Herb spirals
Guides on what to look for, how to use a product, and common mistakes.
Public UK sources used for this comparison. Shelf prices, stars and review counts are the amazon.co.uk figures captured for these three listings on 20 October 2026.
This page contains affiliate links to amazon.co.uk. If you buy through them, we may earn a commission at no extra cost to you. Prices, stars and review counts are the UK listing lines captured for these three products on 20 October 2026. We did not run a laboratory test.