Tomato greenhouse UK
Updated: October 2026
You want tomatoes under cover this summer, and the search mixes racks with tents. A [tomato greenhouse](/hub/raised-beds-greenhouses-and-compost/tomato-greenhouse) UK page has to match height and air, because a 90 cm tunnel will not hold a cordon. Keep the door open. The table is the [greenhouse comparison](/hub/raised-beds-greenhouses-and-compost/greenhouse). Products Compared used the amazon.co.uk listings and RHS notes, not a crop trial. A qualifying purchase can earn a commission at no extra cost to you.
You want tomatoes under cover this summer, and the search mixes racks with tents.
You want tomatoes under cover this summer, and the search mixes racks with tents. A tomato greenhouse UK page has to match height and air, because a 90 cm tunnel will not hold a cordon. Keep the door open. The table is the greenhouse comparison. Products Compared used the amazon.co.uk listings and RHS notes, not a crop trial. A qualifying purchase can earn a commission at no extra cost to you.
Our top picks
| Badge | Product | Greenhouse type | Stated height | Shelves | Note | Price | Offer |
|---|---|---|---|---|---|---|---|
| Best overall |  Bamworld Bamworld 3-tier wood-frame cover | 3-tier mini | 44 cm in the details; shelf spacing 16 inches in the bullet | 3, 38 lb claimed | 9.2 | about £22.99 | View offer |
| Best value |  DIVCHI DIVCHI 4-tier 50 × 45 × 130 cm | 4-tier mini | 130 cm | 4 | 8.8 | about £17.29 | View offer |
 Ohuhu Ohuhu tomato house 200 × 77 × 170 cm | Tomato walk-in | 170 cm | None stated | 8.6 | about £49.99 | View offer |
On this page
Which covers in this set have the height
Match the cover to cordon or bush before you match a brand. BBC Gardeners' World puts cordons at about 1.5 to 2 m, with support. Two houses here state no shelves. The VOUNOT tomato house is 100 × 50 × 150 cm, £23.49, 4.4 from 145 reviews, and the title claims 135 g/m² polyethylene. Several UK reviews say three tomato plants fit, and they also say the ropes and stakes are not enough in wind. Three plants is what those reviewers wrote, not a yield trial.
The Ohuhu tomato house is 200 × 77 × 170 cm at £49.99, with 130 g/m² PE claimed and two mesh windows. Outside height of 170 cm is already short of a 2 m cordon, and the inside is lower. The VOUNOT tunnel is 270 × 90 × 90 cm. It can cover bush types or young plants. It is not a cordon house. Do not screw a hook into a PE tube.
Pots, bags, and shelves
Use RHS numbers, not a bullet that never states a count. The RHS says one tomato in a 30 to 45 cm pot, two plants in a standard growing bag, and planting out once you can rely on temperatures above 16°C, with strings or canes.A shop that says a 6×4 holds about six cordons is describing a different building. Do not paste that onto a 50 cm tent.
Shelves get in the way. The squares arrive full. If you need height, the shelves come out and you lose the tray space. A four-tier with the shelves removed is still about 45 cm deep and 130 or 160 cm high. Bush types suit the 90 cm tunnel. Cordons belong in the 150 cm and 170 cm houses, with 150 cm outside already tight for a 1.5 to 2 m plant.
Heat, water, and disease
These covers have a zip and sometimes a mesh window, not a ridge vent. Open the door on warm days. The RHS links uneven watering to blossom end rot, and it wants that door open in warm weather. Ventilation notes treat about 27°C as a point where plants are damaged. A closed zip on a sunny afternoon cooks the crop. Water steadily.
Blight is less likely under cover, and it is not impossible. The RHS says spores enter through doors and vents, and humidity then spreads it. A shut tent favours leaf mould in still, damp air. No bullet here states a frost temperature. Do not put a combustion heater in the tent.
What this page will not promise
It will not promise a weight of fruit, a night temperature inside the film, or a safe hook in the frame. Canes stop where the cane stops. Our tallest covers are 195 cm outside, with no rated roof bar. A string on a PE joint tears the cover. The £23.49 VOUNOT is the right height class for a few plants only if you add fixing beyond four ropes, because reviews describe that kit failing in wind.
Common questions
Will the £23 VOUNOT house take my cordons?
It may take plants you stop early. The size is 100 × 50 × 150 cm. Gardeners' World puts cordons at about 1.5 to 2 m. UK reviews mention about three plants and also wind collapse. Add ties. Do not treat 150 cm as headroom for you and for a 2 m plant.
How many plants fit?
The RHS figure is one plant in a 30 to 45 cm pot and two in a standard growing bag. Reviews of the 100 × 50 × 150 cm VOUNOT say three plants. That is a review, not the RHS bag rate, and not a yield. A 6×4 glazed house is a different count.
Can I use a four-tier rack if I take the shelves out?
You can grow a bush plant in what is left. You do not gain a 195 cm tent. The small DIVCHI is 130 cm high and 45 cm deep. The RHS already calls a small plastic box a difficult place for tomatoes because the air volume is small.
Is the 90 cm tunnel any use for tomatoes?
Yes for bush types or young plants, no for cordons. The tunnel is 270 × 90 × 90 cm with three mesh windows and a claimed 135 g/m² cover. One UK review used it over raised beds. It is not a walk-in tomato house.
Do I need a heater?
Not for summer cordons in this cover. The RHS cue is reliably above 16°C, which is a reason to wait, not to fire a heater in a zip tent. Do not use a combustion heater inside. Electric heat on a new circuit is Part P and an electrician, and it is outside this page.
How do I stop blight and a cooked crop?
Open the door on warm days so the house does not sit at the damage point the RHS flags, about 27°C, and so the air does not stay wet. Water evenly. Blight is less likely under cover and can still enter. A shut tent trades that risk for leaf mould and cooked plants.
Can I hang the plants from the frame?
No. None of these listings rates a roof bar for a crop. A hook in the polyethylene tears the cover. Use a cane, and stop at the height the cane and the cover allow. The Ohuhu at 170 cm and the VOUNOT at 150 cm set that limit on the outside.
Related pages
Sources
Public UK sources from the research digest, last checked on 17 October 2026.
- Planning Portal — Outbuildings (retrieved 17.10.2026)
- Class E, GPDO 2015 (retrieved 17.10.2026)
- GOV.WALES — Planning permission: outbuildings (retrieved 17.10.2026)
- mygov.scot — Build a shed, garage or greenhouse (retrieved 17.10.2026)
- Building Regulations 2010, Schedule 2 (retrieved 17.10.2026)
- Approved Document P (2013) (retrieved 17.10.2026)
- RHS — Choosing a greenhouse (retrieved 17.10.2026)
- RHS — Ventilation and shading (retrieved 17.10.2026)