When is the best time to install my greenhouse?

Fall. Build it while the garden is quiet and it's standing, organized and ready before your first spring sowing — up to six weeks earlier.

Fall build · ready before the first spring sowing

Watch a full fall install, start to finish, in a weekend.

Build this fall. Grow sooner next spring.

Three things change when the greenhouse is already standing on the first warm day of the year.

Sowing seedlings inside a greenhouse in early spring

REASON 01

Up to 6 weeks earlier

A protected environment starts seedlings and cool-season crops before the outdoor garden has thawed — and there's no assembly eating those first weeks.

Greenhouse frame going up in cool weather

REASON 02

Beat the spring rush

Order in spring and the growing time disappears into assembly, bed prep and organizing. Build in fall and the greenhouse waits for you instead.

Assembling a greenhouse in cool fall weather

REASON 03

Cooler build weather

Panels and steel are far more pleasant to handle at 60°F than 90°F, and the garden has slowed down enough to give you the weekend.

Want it up before the first frost?

River, our greenhouse specialist, will check stock and delivery dates with you. Mon–Fri, 9am–5pm EST.

Call 1-877-669-1286

What fall gives you time to do

A greenhouse is a growing environment, not just a structure — and the setup is easier when nothing is waiting to be planted.

A

Lay out the inside

Mark beds and the walkway, then live with the layout for a few weeks before you commit.

B

Build beds and shelving

Raised beds, containers, benches and tool storage — carpentry is a cold-weather job.

C

Sort watering and venting

Run the hose line and test the vents through a windy month, not during a heat spike in May.

D

Plan the first season

Decide what goes in first, order seed early, and make the small adjustments you'd otherwise skip.

Rule of thumb: one weekend to build, one to set up. Do both in October and spring arrives with nothing left on the list.

A greenhouse full of plants in use out of season

And it works through more of the year

Heavy-duty galvanized steel frames and UV-protected double-wall polycarbonate give you control over the growing environment well past the outdoor season - with maintenance-free construction, so upkeep isn't the trade.

Shop greenhouses

Orders shipped within 2 to 4 business days

Your fall install checklist

01

Order 6–8 weeks before your first hard frost — the base work is the part cold weather stops.
02

Get the base down while the ground is still workable; gravel and pavers both need dry days.
03

Pick two dry, still days for assembly — polycarbonate panels catch wind like a sail.
04

Anchor for winter and check the snow rating for your region before the first storm.
05

Use the quiet months to build beds and benches inside, so February is planting, not carpentry.

Built to stand through the winter you build it in

Durable European engineering, with the practical details that matter to gardeners.

Heavy duty

Galvanized steel frames built for snow load and lasting performance.

Quality engineering

Double-wall polycarbonate in 6 mm and 10 mm, depending on the model.

UV protection

100% UV protection while keeping the growing space bright.

Expandable designs

Most models extend in length as your growing ambitions change.

Maintenance-free

No painting, no sealing — more time gardening, less time on upkeep.

Top-rated support

A team that has helped over 17,000 greenhouse growers get set up.

Gardener tending plants inside her greenhouse

Speak With a Specialist

Not sure which model to build this fall? Tell River about your space, your climate and what you want to grow, and she'll help you land on the right one.

Call 1-877-669-1286

Available from Monday to Friday, 9am–5pm EST