Roundups / Forest Garden planters under £100

Grow-your-own · UK product comparison

Best Forest Garden planters under £100 compared in 2026

Forest Garden makes a good range of timber planters that stay under £100, and this roundup looks at five of them. Prices run from £29.99 to £89.99, and every one is pressure-treated and comes with a 15-year anti-rot warranty. The shapes vary a lot: there is a shallow square bed, a corner bed, two waist-high kitchen planters and an enclosure for grow bags. Capacities in the roundup go from around 130 litres to a stated 500 litres. All five are self-assembly. This is desk research based on the product details supplied, not hands-on testing.

P&P

Plot & Pot editors
We compare published product details, sizes and materials. These are desk-researched product roundups, not hands-on tests.

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Our stand-out pick

Forest Large Kitchen Garden Planter 6' x 2'

The Forest Large Kitchen Garden Planter 6' x 2' is the strongest all-rounder on the facts. At £89.99 it offers around 250 litres of compost capacity in a 180 x 70 x 70 cm frame, and the 70 cm height is designed to make tending easier than a ground-level bed. It is made from pressure-treated, FSC-certified timber with a 15-year anti-rot warranty, and screws and instructions are included for assembly. The corner bed holds more on paper, but it costs about the same and sits at a much lower height. This choice comes from comparing the supplied facts, not from testing.

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At a glance

Our picks compared

Prices are dated snapshots and can change. Product dimensions are shown as width × depth × height.

Product	Brand	Price snapshot	Retailer	Dimensions	Material	Treatment	Construction	Assembly	Warranty	Weight	Planting depth	Capacity	Finish	Designed for	Extra
Forest Caledonian Small Raised Bed 3' x 3'	Forest Garden	£29.99	Shedstore	90 × 90 × 14 cm	40 mm FSC-certified timber	Pressure treated	Half-lap joints	Self-assembly, 4 screws	15-year anti-rot	9.2 kg	—	—	—	—	—
Forest Caledonian Corner Raised Bed 4' x 4'	Forest Garden	£84.99	Shedstore	131 × 131 × 28 cm	Pressure-treated timber	—	—	—	15-year anti-rot	50.52 kg	28 cm	Up to 500 litres	—	—	—
Forest Kitchen Garden Planter 3'3 x 2'	Forest Garden	£39.99	Shedstore	100 × 70 × 70 cm	FSC-certified timber	Pressure treated	—	Self-assembly, screws and instructions included	15-year anti-rot	—	—	Approximately 130 litres	—	—	—
Forest Large Kitchen Garden Planter 6' x 2'	Forest Garden	£89.99	Shedstore	180 × 70 × 70 cm	FSC-certified timber	Pressure treated	—	Self-assembly, screws and instructions included	15-year anti-rot	—	—	Approximately 250 litres	Rough sawn	—	—
Forest Raised Wooden Grow Bag Planter 3'9 x 1'10"	Forest Garden	£29.99	Shedstore	115 × 55 × 60 cm	FSC-certified timber	Pressure treated	—	Self-assembly, screws and instructions included	15-year anti-rot	—	—	—	—	Standard-size grow bags and trays	Crossbar for securing canes

The details

Five Forest Garden planters under £100 compared

01 · Best Budget Raised Bed

Forest Caledonian Small Raised Bed 3' x 3'

A low 3' x 3' raised bed at £29.99, built for shallow-rooted crops and flowers.

The Forest Caledonian Small Raised Bed 3' x 3' is a simple square frame, 90 cm each way and just 14 cm high. That shallow depth points to shallow-rooted crops and flowers, as the product details suggest. The 40 mm FSC-certified timber is pressure treated and joined with half-lap joints. It weighs 9.2 kg, so one person should be able to carry the parts, and assembly needs only four screws. A 15-year anti-rot warranty comes with it. It shares the lowest price in this roundup with the grow bag planter, so it is an easy way to try raised-bed growing.

Price snapshot: £29.99 at Shedstore, recorded 2026-11-03. Check the retailer page for the current price.

Key specifications

Dimensions: 90 × 90 × 14 cm
Material: 40 mm FSC-certified timber
Treatment: Pressure treated
Construction: Half-lap joints
Assembly: Self-assembly, 4 screws
Warranty: 15-year anti-rot
Weight: 9.2 kg

What stands out

Priced at £29.99, the joint-lowest in the roundup, with a 15-year anti-rot warranty
Self-assembly needs only 4 screws, and the 9.2 kg weight is easy to handle

Things to consider

The 14 cm height limits it to shallow-rooted crops and flowers

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02 · Best Corner Planter

Forest Caledonian Corner Raised Bed 4' x 4'

A corner-shaped bed with a stated capacity of up to 500 litres for £84.99.

The Forest Caledonian Corner Raised Bed 4' x 4' is shaped to fit into a corner, measuring 131 x 131 cm with a 28 cm planting depth. That depth is double the small Caledonian bed, and the stated capacity of up to 500 litres is the biggest figure in this roundup. It is made from pressure-treated timber with a green tint and carries a 15-year anti-rot warranty. At 50.52 kg it is by far the heaviest here, so plan where it goes before you start filling it. It is a good fit if you want a large growing area that makes use of an awkward corner.

Price snapshot: £84.99 at Shedstore, recorded 2026-11-03. Check the retailer page for the current price.

Key specifications

Dimensions: 131 × 131 × 28 cm
Material: Pressure-treated timber
Planting depth: 28 cm
Capacity: Up to 500 litres
Warranty: 15-year anti-rot
Weight: 50.52 kg

What stands out

Up to 500 litres of capacity, the largest stated figure in the roundup
28 cm planting depth gives more root room than the small Caledonian bed

Things to consider

At 50.52 kg it is the heaviest planter here, and the frame sits low to the ground

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03 · Best Compact Raised Planter

Forest Kitchen Garden Planter 3'3 x 2'

A waist-high planter with around 130 litres of capacity for £39.99.

The Forest Kitchen Garden Planter 3'3 x 2' is a 100 x 70 cm planter standing 70 cm tall, designed so tending and picking are easier than at ground level. It holds around 130 litres of compost, which suits herbs, salads or flowers. The timber is FSC-certified and pressure treated, and screws and instructions are included for self-assembly. A 15-year anti-rot warranty is also part of the package. At £39.99 it costs only £10 more than the cheapest options, so it is a sensible pick for a small patio or a spot close to the back door.

Price snapshot: £39.99 at Shedstore, recorded 2026-11-03. Check the retailer page for the current price.

Key specifications

Dimensions: 100 × 70 × 70 cm
Material: FSC-certified timber
Treatment: Pressure treated
Capacity: Approximately 130 litres
Assembly: Self-assembly, screws and instructions included
Warranty: 15-year anti-rot

What stands out

70 cm height is designed to make tending and picking easier
Around 130 litres of capacity for £39.99, with screws and instructions included

Things to consider

Capacity is roughly half that of the large kitchen planter, which limits how much you can grow

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04 · Best Large Kitchen Planter

Forest Large Kitchen Garden Planter 6' x 2'

A long, raised planter with around 250 litres of capacity for £89.99.

The Forest Large Kitchen Garden Planter 6' x 2' is a long frame measuring 180 x 70 x 70 cm, with around 250 litres of compost capacity. The extra length gives more space for herbs, salads or flowers in a single row, and the 70 cm height is designed for easier tending. The rough sawn, pressure-treated FSC-certified timber has a 15-year anti-rot warranty, and screws and instructions are included. A porous membrane liner is recommended, so it is worth budgeting for that. It costs £50 more than the smaller kitchen planter but holds almost double the volume.

Price snapshot: £89.99 at Shedstore, recorded 2026-11-03. Check the retailer page for the current price.

Key specifications

Dimensions: 180 × 70 × 70 cm
Material: FSC-certified timber
Finish: Rough sawn
Treatment: Pressure treated
Capacity: Approximately 250 litres
Assembly: Self-assembly, screws and instructions included
Warranty: 15-year anti-rot

What stands out

Around 250 litres of capacity in a long 180 cm frame
70 cm working height is designed to make tending easier

Things to consider

A porous membrane liner is recommended, which adds a job and may add a cost

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05 · Best Grow Bag Enclosure

Forest Raised Wooden Grow Bag Planter 3'9 x 1'10"

A raised enclosure for standard grow bags and trays, with a cane crossbar, for £29.99.

The Forest Raised Wooden Grow Bag Planter is a frame measuring 115 x 55 x 60 cm, designed to hold standard-size grow bags and trays rather than loose compost. A crossbar is included for securing canes, which helps if you want to support climbing or tall crops. The timber is FSC-certified and pressure treated, with a 15-year anti-rot warranty, and screws and instructions are included for self-assembly. The grow bag and tray are sold separately, so factor in that extra cost. It matches the small Caledonian bed as the lowest-priced option at £29.99.

Price snapshot: £29.99 at Shedstore, recorded 2026-11-03. Check the retailer page for the current price.

Key specifications

Dimensions: 115 × 55 × 60 cm
Material: FSC-certified timber
Treatment: Pressure treated
Designed for: Standard-size grow bags and trays
Extra: Crossbar for securing canes
Assembly: Self-assembly, screws and instructions included
Warranty: 15-year anti-rot

What stands out

Built around standard grow bags and trays, with a crossbar for securing canes
Priced at £29.99, the joint-lowest in the roundup, with a 15-year anti-rot warranty

Things to consider

The grow bag and tray are sold separately, so they add to the total cost

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