Buying guide
6 greenhouses you can actually buy now
Skip the endless scrolling. These six picks—from cold frames to premium walk-ins—are real listings with clear strengths, tradeoffs, and pro tips so you can place the right order in minutes.
Decide in under five minutes
- Tiny space, zero build time: start with the cold frame; add the EAGLE PEAK pop-up if you need a bit more room.
- Small lot or tight budget: choose the Palram Harmony 6×8 for durability and easy returns, then layer in a vent opener.
- Permanent project: invest once in Exaco Riga or Rion Prestige. Map benches, irrigation, and automation before delivery to avoid rework.
Place the structure where winter sun hits best, then focus on soil, irrigation, and shade cloth—those three tweaks make any pick outperform larger but neglected houses.
The six picks, with tradeoffs
See the full 2025 masterclassBest overall small walk-in
Palram Harmony 6×8 (Home Depot)
Upgrading from pop-ups to a durable first greenhouse on patios, driveways, or tight side yards.
Why it works
- Polycarbonate glazing plus aluminum framing brings real weather resistance versus thin film tents.
- Size balances space and footprint: enough room for raised beds or benches without dominating the yard.
- Mainstream retailer listing with clear pricing and returns lowers risk if you need to swap sizes.
Tradeoffs
- Still a DIY kit—set aside time, tools, and a level base for a solid build.
- Smaller than premium walk-ins; plan shelving to maximize square footage.
Pro tip
Add an automatic vent opener and wall shelves to keep temps stable and free floor space for trays.
Best premium, year-round
Exaco Riga L Series
Growers who want a lifetime-grade, snow-ready house that doubles as a working garden room.
Why it works
- European-grade engineering with sloped, snow-shedding rooflines and thick twin- or triple-wall panels.
- Tall, roomy footprint accommodates benches, storage, and a small seating area.
- Distributor support includes vents, hooks, and shelving so you can tailor airflow and layout.
Tradeoffs
- Premium price compared to hobby kits, though lifespan and stability are far higher.
- Foundation and anchoring need real planning—budget time or pro help for assembly.
Pro tip
Map irrigation lines and bench spacing before delivery so assembly day focuses on the structure, not layout debates.
Fastest deployable pop-up
EAGLE PEAK 6×8 Walk-In Pop-Up
Rapid frost protection or creating an instant nursery when weather flips unexpectedly.
Why it works
- True pop-up frame deploys quickly yet still offers roll-up doors and windows for ventilation.
- Budget-friendly price point with usable walk-in height for beds or shelving.
- Portable enough for balconies, patios, or narrow side yards where permanence is impossible.
Tradeoffs
- Lighter materials mean strong winds or heavy snow require extra anchoring or temporary takedown.
- Covers wear faster than rigid panels under long, intense sun.
Pro tip
Use extra stakes or weight bags and elevate slightly to prevent edge wear; disassemble ahead of major wind events.
Best tiny season-extender
Twin-Wall Polycarbonate Cold Frame with Insect Screen
Balconies or small beds that need weeks of frost protection and early starts without a full greenhouse.
Why it works
- Dual covers—4 mm polycarbonate and insect screen—switch from frost defense to ventilation in minutes.
- Low-profile footprint tucks beside walls or in raised beds for microclimate boosts.
- Maintenance is minimal: open on warm days, close when frost looms.
Tradeoffs
- Limited headroom rules out tall crops; best for greens, starts, or compact herbs.
- Manual operation unless you add a small vent opener.
Pro tip
Place on south-facing beds with a couple of water jugs or stone pavers inside to stabilize night temps.
Best ultra-cheap big pop-up
VEVOR 12×8 Portable Greenhouse Tent
Temporary large coverage for extra beds, plant sales, or experiments without committing to a frame kit.
Why it works
- 12 × 8 footprint doubles space versus small pop-ups while staying close in price.
- Designed to move: stakes, ropes, and carry options make seasonal setup and storage feasible.
- Flexible interior zoning—seedlings on one side, mature pots or raised beds on the other.
Tradeoffs
- Pop-up materials will not rival aluminum and polycarbonate in storms or snow.
- UV exposure shortens cover life; expect to rotate or replace over time.
Pro tip
Hang a shade cloth inside during extreme sun and anchor hard if forecasts show gusts above 20 mph.
Best high-end statement piece
Rion Prestige / Grand Gardener
Year-round growing plus a polished, glass-like look that adds value to prominent lots.
Why it works
- Robust framing and premium glazing deliver strong insulation and clean sightlines.
- Vent placement and headroom support real cultivation—not just display plants.
- Recognized brand with solid resale value if you move or upgrade later.
Tradeoffs
- Premium pricing and more involved assembly demand a dedicated, permanent spot.
- Tighter envelopes can overheat—vent automation and fans are essential from day one.
Pro tip
Install roof vent openers and a compact fan kit during assembly; it is cheaper and easier than retrofitting after overheating issues.