About Our Hexagonal Greenhouses
We stock 6 hexagonal greenhouse models from two trusted manufacturers. The Vitavia Hera range starts from £729 for the Hera 4500 in horticultural glass and goes up to £1,759 for the Hera 9000 in toughened glass with a black powder-coated frame. The Palram Canopia Oasis sits at £1,089 with twin-wall polycarbonate glazing. All models ship free to UK mainland addresses.
The Hera 4500 gives you 4.5 m² of floor space in a 7ft x 8ft footprint. Step up to the Hera 9000 and you get 9.0 m² across 11ft x 12ft. Both sizes share the same 1,820 mm eaves height. The Palram Oasis sits between the two at 8ft x 7ft with a 2,668 mm ridge height and double hinged doors rather than the Vitavia's single slider.
Why We Chose This Range
"Hexagonal greenhouses are a niche product. Most retailers stock one or two models and leave it at that. We carry the full Vitavia Hera range because the frame engineering is genuinely different. The six-sided profile uses reinforced corner braces and thicker aluminium extrusions than their rectangular models. We've had Hera 4500s standing through Storm Eunice in coastal Devon with no panel losses. The Palram Oasis earns its place for customers who want polycarbonate, though I'd always recommend the Vitavia for exposed sites."
— Matt, Founder of Greenhouse StoresTypes of Hexagonal Greenhouse We Offer
Vitavia Hera 4500 (7ft x 8ft)
The smaller Hera has 4.5 m² of growing space with 1,820 mm eaves height. Anodised silver or powder-coated green frames. Horticultural glass starts at £729; toughened safety glass from £869. Two louvre vents, a single sliding door, and integrated gutters come fitted. 12-year frame warranty.
Vitavia Hera 9000 (11ft x 12ft)
Double the floor space at 9.0 m² with a 2,880 mm ridge height. Four colour options: black, green, silver, or white. Three louvre vents and a full-length downpipe for rainwater collection. The roof uses 6 mm polycarbonate for heat retention while the sides are toughened glass. From £1,759.
Palram Canopia Oasis (8ft x 7ft)
The polycarbonate option. Grey powder-coated aluminium frame with a twin-wall roof that diffuses light and cuts scorch risk. Locking double hinged doors give wider access than the Vitavia slider. One louvre vent. Lighter than the Hera models, so anchor it down in exposed spots. 5-year warranty. £1,089.
Accessories and Staging
The Hera 4500 has a purpose-built folding aluminium staging table (122 x 52 cm) designed to fit the hexagonal shape. Both Vitavia models accept an optional galvanised steel base plinth that adds 60 mm of height and extra ground-level rigidity.
Choosing a Hexagonal Greenhouse: Quick Guide
💡 Tip: Hexagonal bases need all six sides level to within 5 mm. Measure your proposed site diagonally from corner to corner. If any diagonal differs by more than 10 mm, the doors will bind and glass panels won't seat properly. A 4ft spirit level is the minimum tool you need.
🔧 Matt's Installation Tip: Hexagonal Base Preparation
The biggest mistake we see is people trying to lay a circular concrete pad and hoping the hexagonal frame will sit on it. It won't. You need a six-sided base that matches the greenhouse footprint exactly. We recommend 50 mm paving slabs on a 50 mm compacted sand bed, laid to match the base plinth template supplied with every Vitavia model.
For the Palram Oasis, the included galvanised steel perimeter base doubles as your template. Peg it down first and check levels before you commit to pouring or laying anything. Read our full paving slab base guide here.
Budget guide: the Palram Oasis at £1,089 suits sheltered gardens where polycarbonate is fine. For exposed or windy sites, the Vitavia Hera 4500 in toughened glass (from £869) is the better investment. The Hera 9000 (from £1,759) is worth it if you plan to use the space for relaxing as well as growing.
Look for louvre vents (not just roof vents) to manage summer temperatures. Integrated gutters matter if you collect rainwater. Toughened glass is safer and more wind-resistant than horticultural glass, but costs roughly £140 more per model.
Frequently Asked Questions
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How much does a hexagonal greenhouse cost?
Hexagonal greenhouses at Greenhouse Stores range from £729 to £1,759. The Vitavia Hera 4500 starts at £729 in horticultural glass or £869 in toughened glass. The larger Hera 9000 costs £1,759 in toughened glass. The Palram Canopia Oasis is £1,089 with polycarbonate glazing. All prices include free UK mainland delivery.
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What size hexagonal greenhouse do I need?
The Hera 4500 at 4.5 m² (7ft x 8ft) suits most gardeners. It fits roughly 15–20 medium pots with staging. The Hera 9000 at 9.0 m² (11ft x 12ft) is better if you want a dual-purpose space for growing and sitting. The Palram Oasis at 8ft x 7ft sits between the two.
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Are hexagonal greenhouses more wind resistant?
Yes, hexagonal frames distribute wind load across six panels instead of four. This reduces the pressure on any single pane. The Vitavia Hera uses reinforced corner braces and thicker aluminium extrusions than standard rectangular models. For very exposed sites, choose toughened glass over horticultural glass.
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What base does a hexagonal greenhouse need?
A level six-sided base matching the greenhouse footprint exactly. Paving slabs on compacted sand work well for both Vitavia and Palram models. Avoid circular concrete pads. Vitavia supply a base plinth template with every model. Level to within 5 mm across all six sides or the doors will bind. See our full base guide.
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Can I use a hexagonal greenhouse as a garden room?
Yes, many customers use the Hera as a dual-purpose structure. The 1,820 mm eaves height gives comfortable standing room. The Hera 9000 (9.0 m²) is the better choice for seating, with enough space for a small table and two chairs alongside plants. Add the optional Hera staging to keep benches against the walls.
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Glass or polycarbonate for a hexagonal greenhouse?
Toughened glass is better for most hexagonal greenhouses. It handles wind loading at angled panels better than polycarbonate and lasts 25+ years without discolouration. The Palram Oasis uses polycarbonate on the roof for heat diffusion but single-wall poly on the sides, which can yellow after 10–15 years. The £140 upgrade from horticultural to toughened glass on Vitavia models is worth it.
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How long does it take to build a hexagonal greenhouse?
Allow a full weekend for two people. The frame assembly takes 4–6 hours. Glazing the six angled panels takes another 3–4 hours because each pane must seat squarely before you tighten the clips. The Palram Oasis is slightly faster (3–4 hours total) because polycarbonate slides into channels rather than clipping.