Which plant food granules to buy for beds and pots
Updated: October 2026
Hanging baskets and a vegetable bed can both look hungry, while amazon.co.uk shows Growmore buckets, coated Miracle-Gro packs, an organic fruit-and-veg carton and a small ericaceous jar on one shelf. Which plant food granules to buy is a release-type and plant-group decision, not a brand decision. Prices for the eight listings sit on the [plant granules comparison](/hub/fertiliser-soil-and-bark-mulch/plant-granules). This page is from Peter F., the DIY and tools editor, on 21 October 2026. Those listings and public UK sources were read for this page. There was no laboratory test. A qualifying purchase can earn a commission at no extra cost to you.
Hanging baskets and a vegetable bed can both look hungry, while amazon.co.uk shows Growmore buckets, coated Miracle-Gro packs, an organic fruit-and-veg carton and a small ericaceous jar on one shelf.
Hanging baskets and a vegetable bed can both look hungry, while amazon.co.uk shows Growmore buckets, coated Miracle-Gro packs, an organic fruit-and-veg carton and a small ericaceous jar on one shelf. Which plant food granules to buy is a release-type and plant-group decision, not a brand decision. Prices for the eight listings sit on the plant granules comparison. This page is from Peter F., the DIY and tools editor, on 21 October 2026. Those listings and public UK sources were read for this page. There was no laboratory test. A qualifying purchase can earn a commission at no extra cost to you.
Our top picks
| Badge | Product | Release | Plants named | Pack | Note | Price | Offer |
|---|---|---|---|---|---|---|---|
| Best overall |  Miracle-Gro Miracle-Gro rose and shrub plant food 3 kg carton | Up to 3 months | Roses and shrubs | 3 kg carton | 9.2 | about £9.99 | View offer |
 Miracle-Gro Miracle-Gro Continuous Release All Purpose, 900 g (pack of 2) | Season coating | General plants | 900 g x 2 | 9.2 | about £11.94 | View offer | |
| Alternative |  Topline Topline Growmore plant-feed granules 8 kg | Every 4–6 weeks | Flowers, veg, shrubs | 8 kg | 9.0 | about £23.99 | View offer |
On this page
Four jobs, not one granule
An uncoated Growmore-style feed is a base or top dressing every four to six weeks from late winter into autumn. Topline’s 8 kg tub at about £23.99 names flowers, vegetables, fruit trees and shrubs, and it says to water before and after in dry weather. A coated pack is one spring job. Miracle-Gro’s twin 900 g pack at about £11.94 is the all-purpose version. Westland Boost at about £11.64 and Topline’s 2 kg six-month tub at about £17.99 sell that calendar in one tub.
Miracle-Gro Performance Organics at about £7.99 is a 1 kg fruit-and-veg granule. Reviews mention a manure-like smell, so it is not a silent basket feed. Lime-hating shrubs are separate: Westland’s jar at about £6.00 and Miracle-Gro’s azalea, camellia and rhododendron pack at about £8.10. Westland’s Growmore page says that 7-7-7 habit is not recommended on ericaceous plants. If the shrub is a rhododendron, open ericaceous plant food granules.
Pack size versus the job
A 900 g jar is a pot-and-shrub pack. A 2 kg tub covers baskets and a small border. The twin pack is 1.8 kg on the item-weight field. The 3 kg rose carton is the rose-and-shrub size. The 8 kg Growmore is a plot tub, not two window boxes.
Some unit-count fields say 1.0 count. Use the title and the item weight. Westland’s ericaceous jar is 900 g on the title and 770 g on the item-weight field. These listings almost never print grammes per square metre. Westland’s Growmore page uses about 70 g/m² as a top dressing and about 135 to 140 g/m² as a base dressing. A Miracle-Gro label uses a 25 g handful. Those are manufacturer figures. If the listing only says easy to use, wait for the carton in your hand.
What this shelf is not
Clay growing media, Seramis-type potting granules, cat-deterrent scatter, foliar tablets and slug-barrier seaweed are not plant food.
The Growmore listing is an outdoor garden feed. A pet-friendly line on a title is a claim, not a feeding study. The Royal Horticultural Society treats fertiliser as optional on most UK garden soil, and useful for containers, hungry crops and a proven shortage. Yellow leaves are not always hunger.
A short decision
Walk-the-plot gardeners take Growmore. Forgetful container gardeners take a coated season feed. Fruit-and-veg growers who want an organic granule take the 1 kg carton. Lime-hating shrubs take an ericaceous jar, not an all-purpose 7-7-7. Then match the pack: 900 g for a few shrubs, 2 kg for baskets, 3 kg for a rose border, 8 kg for a plot. Named listings sit on best plant food granules. The top pick and the best value on the main comparison are not the buy for blueberries.
Common questions
Should I buy Growmore or a six-month coated tub?
Buy Growmore if you will reapply every four to six weeks from February to October on a mixed outdoor plot. Buy a coated tub if you will pot once in spring and then leave the baskets. They are not the same habit and they are not interchangeable on ericaceous shrubs. Growmore or a coated season feed walks that trade-off without turning the eight listings into a second ranking.
Can I use all-purpose granules on azaleas?
Not as a first choice. Westland says Growmore is not recommended on ericaceous plants. An all-purpose coated pack is written for mixed plants, not for rewriting chalk around a rhododendron. Use the Westland ericaceous jar or the Miracle-Gro azalea, camellia and rhododendron pack, and check the compost as well as the feed.
What pack size do hanging baskets need versus a vegetable plot?
In these listings, 900 g to 2 kg matches baskets and a small border. The 8 kg Growmore tub is the vegetable-plot size. The twin 900 g Miracle-Gro pack is a middle step if you pot several containers at once. Do not convert those kilogrammes into square metres without the rate on the pack in your hand.
Are organic granules safer for pets because the title says so?
No. Bee, pet and child friendly on the Miracle-Gro Performance Organics title is a title claim, not a feeding study on the listing. Keep the closed pack away from children and pets. If granules are eaten, get urgent advice rather than reading the title as a safety certificate.
Can I put Growmore on houseplants?
The Topline Growmore listing is an outdoor garden feed. Houseplants appear on Topline’s six-month title and in some Miracle-Gro reviews, not as a Growmore bullet. Indoor plants in small pots are easy to overfeed with a plot handful. If you feed indoors, use a pack that names houseplants and a rate you can follow, or switch to a liquid.
Why does one listing say powder when the photo looks like prills?
Miracle-Gro’s twin pack has powder in the Amazon item-form field and controlled-release plant food in the included-components field. Treat the photo and the included-components line as the product you receive. That field clash is a listing fault, not a second product.
Do I also need a liquid feed?
Not automatically. A coated season feed is sold as the weekly-liquid substitute for pots. Growmore is a dry interval feed, not a foliar tonic. Hungry containers can still take a liquid later in the season if the pack allows it. Do not stack an extra handful of granules because last year’s display was poor.
Related pages
Sources
Sources from the research digest; data on file 21 October 2026.
- Royal Horticultural Society, Fertilisers: types and uses (retrieved 21 October 2026)
- GOV.UK, Manufacturing and marketing fertilisers (retrieved 21 October 2026)
- The Fertilisers Regulations 1991, Schedule 2 (retrieved 21 October 2026)
- Westland Growmore product page (retrieved 21 October 2026)
- Westland Ericaceous granules (retrieved 21 October 2026)
- Love The Garden / Miracle-Gro, How fertilisers work (retrieved 21 October 2026)
- Miracle-Gro All Purpose Continuous Release pack label (PDF) (retrieved 21 October 2026)