9 Best Lean-To Greenhouses for Fences and Walls (October 2026)
The best lean-to greenhouses include the Eagle Peak 10x5 Lean-To Pop-Up Greenhouse for quick setup and roomy access, the Ohuhu Lean-To Greenhouse with Roll-Up Door for a narrow garden strip, and the Ohuhu Tomato Lean-To Greenhouse for tomatoes and young plants.
On this page (7 sections)
The Eagle Peak 10x5 Lean-To Pop-Up Greenhouse is the best lean-to greenhouse for most gardeners who want walk-in room and quick setup. For a narrow strip, choose the Ohuhu model; for vertical storage in a compact walk-in, consider VEVOR.
A lean-to greenhouse uses space beside a wall or fence, but it still needs a level base, enough door clearance and secure anchoring. Measure the available area before choosing between a wide 10 x 5 ft structure and a compact shelf-style unit.
For a broader look at greenhouse shapes and cover choices, read our backyard greenhouse guide. If you're weighing a freestanding model too, compare these picks with our best outdoor greenhouses.
Our picks at a glance
-
1
Best for quick setup and roomy accessEagle Peak 10x5 Lean-To Pop-Up Greenhouse
8.7/10 our score
See it on Amazon -
2
Best for a narrow garden stripOhuhu Lean-To Greenhouse with Roll-Up Door
8.5/10 our score
See it on Amazon -
3
Best for tomatoes and young plantsOhuhu Tomato Lean-To Greenhouse
8.3/10 our score
See it on Amazon
- 4
Check itVEVOR 78-Inch Lean-To Walk-In Greenhouse
Best for vertical growing in a sheltered spot - 5
Check itEagle Peak 10x5 Lean-To Greenhouse, PE Cover
Best for a large planted area with shelves - 6
Check itOutsunny 10x5x7 Lean-To Walk-In Greenhouse
Best for three tiers of plant storage - 7
Check itSAFSTAR 7x3.5x7 Mini Lean-To Greenhouse
Best for two-sided access - 8
Check itOutsunny 7x3x7 Lean-To Greenhouse, 3 Wire Shelves
Best for a compact walk-in layout - 9
Check itOutsunny Lean-To Greenhouse with 3-Tier Shelves
Best for a very narrow wall-side space
How we chose these lean-to greenhouses
The best lean-to greenhouse depends on the footprint you can spare and how you plan to reach your plants. We compared the stated dimensions, frame and cover materials, access points, shelves and anchoring options for each pick.
We gave more weight to clear wall-side placement, useful access and practical growing space. A narrow shelf greenhouse can be a better fit than a walk-in model if the available strip is tight.
Our score weighs specs, features and buyer feedback against what you're shopping for. The scores reflect fit for this use, based on product information and buyer feedback.
Lean-to greenhouse comparison
The Eagle Peak pop-up offers the largest stated workspace and one-person setup without tools, while compact models use less floor area. Check the dimensions and shelf arrangement against your plants and access needs.
| Product | Best for | Size | Cover | Access | Our score |
|---|---|---|---|---|---|
| Eagle Peak 10x5 Lean-To Pop-Up Greenhouse | quick setup and roomy access | 10 x 5 ft | Polyethylene (PE) | Two roll-up doors and mesh windows | 8.7 |
| Ohuhu Lean-To Greenhouse with Roll-Up Door | a narrow garden strip | 6.6 x 2.5 x 5.6 ft | Polyethylene (PE) | One roll-up door and two mesh windows | 8.5 |
| Ohuhu Tomato Lean-To Greenhouse | tomatoes and young plants | 6.6 x 2.5 x 5.6 ft | One roll-up door and two mesh windows | 8.3 | |
| VEVOR 78-Inch Lean-To Walk-In Greenhouse | vertical growing in a sheltered spot | 78 x 39.4 x 78.7 in | 140 gsm double-sided coated PE | 8.1 | |
| Eagle Peak 10x5 Lean-To Greenhouse, PE Cover | a large planted area with shelves | 120 x 60 x 84 in | Polyethylene (PE) | Two roll-up doors | 8.0 |
| Outsunny 10x5x7 Lean-To Walk-In Greenhouse | three tiers of plant storage | 10 x 5 x 7 ft | Polyethylene (PE) | 7.8 | |
| SAFSTAR 7x3.5x7 Mini Lean-To Greenhouse | two-sided access | 7 x 3.5 x 7 ft | Polyethylene (PE) | Two roll-up doors | 7.6 |
| Outsunny 7x3x7 Lean-To Greenhouse, 3 Wire Shelves | a compact walk-in layout | 7 x 3 x 7 ft | Polyethylene (PE) | 7.0 | |
| Outsunny Lean-To Greenhouse with 3-Tier Shelves | a very narrow wall-side space | 84.6 x 18.1 x 56.7 in | 140 gsm polyethylene (PE) | 6.9 |
Best lean-to greenhouses for fences and walls
Choose a lean-to greenhouse by measuring the site first, then matching its door layout and shelves to the way you'll grow. These picks are ordered by score, from roomy pop-up designs to narrow shelf-style options.
1. Eagle Peak 10x5 Lean-To Pop-Up Greenhouse: Best for quick setup and roomy access
Eagle Peak 10x5 Lean-To Pop-Up Greenhouse: Best for quick setup and roomy access
- 10 x 5 ft walk-in space
- Pre-assembled pop-up frame
- Two roll-up zippered doors
- Mesh windows
A pre-assembled pop-up frame and 10 x 5 ft footprint suit gardeners who want a quick setup and room to move. Expansion bolts are included to fasten it to an outdoor wall.
Pros
- One-person pop-up setup
- Walk-in space
- Expansion bolts included
Cons
- Needs a broad 10 x 5 ft area
- Wall fastening is part of the setup plan
The Eagle Peak suits gardeners who want to walk inside and arrange plants across a larger floor area. Its 10 x 5 ft footprint is among the roomiest here, so measure the space and confirm the door side will remain clear.
The pre-assembled pop-up frame is designed for one-person setup without tools. It has two roll-up zippered doors and mesh windows, giving you access from the ends and screened openings for airflow.
Expansion bolts are included to fasten the structure to an outdoor wall. Plan that connection before setup, and confirm the wall and fastener placement suit the included hardware.
Choose this model when quick setup and walk-in room matter more than keeping the greenhouse footprint small. If you want a 10 x 5 ft greenhouse with a flower rack instead, compare the steel-frame Eagle Peak below.
2. Ohuhu Lean-To Greenhouse with Roll-Up Door: Best for a narrow garden strip
Ohuhu Lean-To Greenhouse with Roll-Up Door: Best for a narrow garden strip
- 6.6 x 2.5 x 5.6 ft
- PE mesh cover
- One roll-up zippered door
- Two mesh windows
Its 2.5 ft width works for a narrow strip beside a wall or fence. Stakes and windproof ropes are included, and the greenhouse can be assembled and disassembled.
Pros
- Narrow footprint
- Two mesh windows
- Stakes and windproof ropes included
Cons
- Less room to move than a wide walk-in model
- Plastic frame
The Ohuhu fits a long, narrow space beside a fence, garage or shed. At 6.6 x 2.5 ft, it uses less width than the walk-in models, while its 5.6 ft height gives plants room above the ground.
A single roll-up zippered door keeps the entry simple, and two mesh windows support air movement. Its PE mesh cover is paired with a plastic frame, so secure it with the included stakes and windproof ropes.
Ohuhu recommends installing it against a wall or fence for added stability. Make sure the door faces an open path, and leave enough room to raise it fully.
Choose this one if your growing area is a slim strip and you can tend plants from the doorway. For a similar footprint with a metal frame, consider the Ohuhu tomato model next.
3. Ohuhu Tomato Lean-To Greenhouse: Best for tomatoes and young plants
Ohuhu Tomato Lean-To Greenhouse: Best for tomatoes and young plants
- 6.6 x 2.5 x 5.6 ft
- Metal frame
- PE mesh cover
- Two mesh windows
The compact shape and screened windows suit young plants and tomatoes in a slim growing area. Stakes and windproof ropes help secure it, and the frame can be taken apart for storage.
Pros
- Metal frame
- Two mesh windows
- Stakes and windproof ropes included
Cons
- Narrow interior
- Needs anchoring and a sheltered placement
This Ohuhu shares the compact 6.6 x 2.5 x 5.6 ft dimensions of the other Ohuhu pick, but it has a metal frame. Its white translucent PE mesh cover and two mesh windows suit a small planting area where airflow and protected space both matter.
The frame uses 16 mm tubes joined with PP plastic joints. Seven rods across the top are intended to help manage snow or water accumulation, and the sides, back and doorways have reinforcing rods.
A zippered roll-up door provides the main access. The included stakes and windproof ropes help secure the structure, and the greenhouse can be assembled and disassembled for storage.
Choose it for a slim wall-side space with seedlings or tomato plants, and anchor it carefully. If you want a larger three-tier shelf inside a compact walk-in, look at the VEVOR option.
4. VEVOR 78-Inch Lean-To Walk-In Greenhouse: Best for vertical growing in a sheltered spot
VEVOR 78-Inch Lean-To Walk-In Greenhouse: Best for vertical growing in a sheltered spot
- Sloped roof for wall or fence placement
- 78 x 39.4 x 78.7 in
- Three-tier shelf
- Two roll-up zipper doors
A sloped roof and compact walk-in footprint make this a space-saving choice beside a wall or fence. The three-tier shelf organizes pots and tools, while a window and roll-up door allow airflow.
Pros
- Sloped roof for lean-to placement
- Three-tier shelf included
- Ground stakes and guy ropes included
Cons
- Maker recommends a sheltered location
- Narrower floor area than 10 x 5 ft models
VEVOR uses a sloped roof to fit against a wall or fence while keeping a walk-in shape. Its 78 x 39.4 x 78.7 in size offers more floor width than the narrow Ohuhu models, with a three-tier shelf for pots, seedlings and garden tools.
The shelf has a stated capacity of 33 lb per tier and can be moved or repositioned. A 140 gsm PE cover, two roll-up zipper doors and a window with straps round out the growing and access features.
The powder-coated steel frame comes with ground stakes and guy ropes. VEVOR recommends a sheltered location, so consider wind exposure and how the greenhouse will be secured before setting it up.
Choose VEVOR if you want a compact walk-in greenhouse with included shelving. For more floor space and a larger covered area, compare the 10 x 5 ft options.
5. Eagle Peak 10x5 Lean-To Greenhouse, PE Cover: Best for a large planted area with shelves
Eagle Peak 10x5 Lean-To Greenhouse, PE Cover: Best for a large planted area with shelves
- 10 x 5 ft footprint
- Powder-coated steel frame
- Flower rack included
- Two roll-up zipper doors
This walk-in model measures about 10 x 5 ft and includes a flower rack for organizing plants off the ground. Its two roll-up doors provide access at both ends.
Pros
- Flower rack included
- Two roll-up doors
- Powder-coated steel frame
Cons
- Requires a broad footprint
- Assembly required
This Eagle Peak provides 10 x 5 ft of walk-in space and includes a flower rack for organizing plants above the ground. Its powder-coated steel frame and PE cover make it a fit for gardeners who want shelves without giving up the broader footprint.
Two large roll-up zipper doors provide access at both ends. Assembly is required, and the greenhouse is designed to sit beside a barn, garage or shed.
Eagle Peak offers a one-year limited after-sale protection from the original purchase date. Check the terms with the brand if warranty coverage will affect your choice.
Choose this version if you want a 10 x 5 ft greenhouse with shelving included. For three tiers of wire panels and a screened window, compare the Outsunny 10 x 5 model.
6. Outsunny 10x5x7 Lean-To Walk-In Greenhouse: Best for three tiers of plant storage
Outsunny 10x5x7 Lean-To Walk-In Greenhouse: Best for three tiers of plant storage
- 10 x 5 x 7 ft footprint
- Three tiers of shelving
- Two zippered doors
- Screened window
Six wire panels across three tiers help organize plants in a 10 x 5 ft walk-in space. Place it near a wall as recommended, and use the included stakes and guy ropes to secure it.
Pros
- Three tiers of wire shelving
- Two zippered doors
- Screened window
Cons
- Assembly required
- Large footprint needs careful siting
The Outsunny combines a 10 x 5 x 7 ft footprint with three tiers of shelving made from six wire panels. It suits gardeners who want room for potted plants at several heights, with floor space left for larger containers.
Two zippered doors open for access, and a screened window helps manage airflow and light. Each wire panel has a stated capacity of 22 lb, so spread pots across the shelves and stay within that limit.
Its galvanized steel frame comes with guy ropes and stakes. Outsunny recommends placing it near a wall to help reduce wind exposure, so plan the location before assembly.
Choose it if three shelf tiers matter more than a quick pop-up setup. If your site is shorter or narrower, the SAFSTAR and smaller Outsunny models take up less space.
7. SAFSTAR 7x3.5x7 Mini Lean-To Greenhouse: Best for two-sided access
SAFSTAR 7x3.5x7 Mini Lean-To Greenhouse: Best for two-sided access
- 7 x 3.5 x 7 ft
- Three-tier flower rack
- Two roll-up doors
- Wall screw kit
Two large doors allow entry from either side, which can help when the greenhouse sits between a wall and a path. It also includes a three-tier rack, stakes, wind ropes and a wall screw kit.
Pros
- Two roll-up doors
- Three-tier flower rack
- Wall screw kit included
Cons
- Check both entry sides will remain reachable
- Needs a 7 ft long area
The SAFSTAR offers a 7 x 3.5 x 7 ft footprint, a three-tier flower rack and two roll-up doors. Those doors can be useful when the greenhouse sits along a wall but still has access from both ends.
Its PE cover sits over a powder-coated metal frame. Stakes, wind ropes and a wall screw kit are included, and the extended cover edge can be weighted with stones.
Check that both doors will be reachable after you choose the placement. A path on only one side would make the second entrance less useful.
Choose SAFSTAR if you want walk-in access from either end in a mid-size footprint. For a narrower 7 ft model with wire shelves, compare the Outsunny next.
8. Outsunny 7x3x7 Lean-To Greenhouse, 3 Wire Shelves: Best for a compact walk-in layout
Outsunny 7x3x7 Lean-To Greenhouse, 3 Wire Shelves: Best for a compact walk-in layout
- 7 x 3 x 7 ft
- Three tiers with six wire panels
- Two roll-up doors
- Ground stakes and guy ropes
This smaller walk-in model keeps three shelf tiers within a 7 x 3 ft footprint. Place it near a wall to help reduce wind exposure.
Pros
- Compact walk-in dimensions
- Three tiers of wire shelves
- Two roll-up doors
Cons
- Assembly required
- Narrow interior limits floor-level workspace
This Outsunny keeps a walk-in layout within a 7 x 3 x 7 ft footprint. Three tiers of shelving use six wire panels, providing organized space for pots while leaving a narrow path through the greenhouse.
Two roll-up doors and a screened window support access and ventilation. The alloy steel frame comes with four ground stakes and four guy ropes, and Aosom recommends positioning it near a wall to reduce wind exposure.
Each wire panel has a stated capacity of 22 lb. Check pot sizes and weights before filling all tiers, and keep the entrance clear enough to move supplies in and out.
Choose it when you want shelving and a walk-in design in less space than a 10 x 5 ft greenhouse. For the tightest wall-side area, the shelf-style Outsunny below is much narrower.
9. Outsunny Lean-To Greenhouse with 3-Tier Shelves: Best for a very narrow wall-side space
Outsunny Lean-To Greenhouse with 3-Tier Shelves: Best for a very narrow wall-side space
- 84.6 x 18.1 x 56.7 in
- Three-tier wire shelf
- Three roll-up zippered doors
- 140 gsm PE cover
At just 18.1 in wide, this shelf-style greenhouse fits tight spaces where walk-in access is not practical. Its three roll-up doors make it easier to reach plants along the narrow interior.
Pros
- Very narrow footprint
- Three roll-up doors
- Three wire shelves
Cons
- Not a walk-in greenhouse
- Each shelf holds up to 13 lb
At 18.1 in wide, this Outsunny is a shelf greenhouse for a narrow wall-side strip, not a walk-in growing space. Three wire shelves organize pots and seed trays, and each shelf has a capacity of 13 lb.
The 140 gsm PE cover is UV-resistant and allows 85% sunlight through. Three roll-up zippered doors provide access along its 84.6 in length, while the extended edge and side bags offer ways to help stabilize it.
Place it against a wall to use corner space and provide shelter from wind. At 56.7 in high, it is lower than the walk-in models, so check the tallest plant or tray you plan to keep inside.
Choose this model if floor space is very limited and shelving matters more than standing room. For a compact greenhouse you can enter, step up to the 7 x 3 ft Outsunny.
How do you choose a lean-to greenhouse size?
Measure the wall-side length, depth and height before choosing a greenhouse. Include door clearance, a route for carrying plants and room to reach any windows or vents.
A 10 x 5 ft model offers more floor space, but it needs a wide, clear area. A 6.6 x 2.5 ft greenhouse suits a narrow strip, while the 18.1 in Outsunny fits shelving into a particularly tight space.
Check shelf depth and height as well as the outer dimensions. A narrow frame may fit the site but leave little room to reach plants or move larger pots.
How should a lean-to greenhouse be anchored?
Anchor a lean-to greenhouse using the method included with that model and a base that suits its frame. Some picks include stakes and ropes, while the Eagle Peak pop-up includes expansion bolts for fastening to an outdoor wall.
A nearby wall can provide shelter, but it doesn't replace secure anchoring. Our guide on how to anchor a pop-up or walk-in greenhouse explains what to consider before setup.
Choose a spot where you can inspect the fasteners and reach the doors. Check the setup after strong wind and follow the greenhouse maker's instructions.
Where should you place a greenhouse beside a wall?
Place a lean-to greenhouse where you can reach its doors, manage airflow and tend plants comfortably. Check how the wall, fence and nearby structures affect sun, shade and access through the day.
Keep the entrance facing a usable path, especially if you choose a model with two doors. For site planning, see our guide to where to put a greenhouse.
Which lean-to greenhouse should you choose?
Pick the Eagle Peak pop-up if you have room for a 10 x 5 ft footprint and want a pre-assembled frame. Choose the Ohuhu for a narrow strip, VEVOR for a compact walk-in with a three-tier shelf, or the Outsunny shelf model if standing room will not fit.
A wall-side greenhouse still needs a measured footprint and secure anchoring. Start with our backyard greenhouse guide if you want to compare other shapes and cover types before choosing.
Eagle Peak 10x5 Lean-To Pop-Up Greenhouse: Best for quick setup and roomy access
- 10 x 5 ft walk-in space
- Pre-assembled pop-up frame
- Two roll-up zippered doors
- Mesh windows
A pre-assembled pop-up frame and 10 x 5 ft footprint suit gardeners who want a quick setup and room to move. Expansion bolts are included to fasten it to an outdoor wall.
Pros
- One-person pop-up setup
- Walk-in space
- Expansion bolts included
Cons
- Needs a broad 10 x 5 ft area
- Wall fastening is part of the setup plan
Ohuhu Lean-To Greenhouse with Roll-Up Door: Best for a narrow garden strip
- 6.6 x 2.5 x 5.6 ft
- PE mesh cover
- One roll-up zippered door
- Two mesh windows
Its 2.5 ft width works for a narrow strip beside a wall or fence. Stakes and windproof ropes are included, and the greenhouse can be assembled and disassembled.
Pros
- Narrow footprint
- Two mesh windows
- Stakes and windproof ropes included
Cons
- Less room to move than a wide walk-in model
- Plastic frame
Ohuhu Tomato Lean-To Greenhouse: Best for tomatoes and young plants
- 6.6 x 2.5 x 5.6 ft
- Metal frame
- PE mesh cover
- Two mesh windows
The compact shape and screened windows suit young plants and tomatoes in a slim growing area. Stakes and windproof ropes help secure it, and the frame can be taken apart for storage.
Pros
- Metal frame
- Two mesh windows
- Stakes and windproof ropes included
Cons
- Narrow interior
- Needs anchoring and a sheltered placement
VEVOR 78-Inch Lean-To Walk-In Greenhouse: Best for vertical growing in a sheltered spot
- Sloped roof for wall or fence placement
- 78 x 39.4 x 78.7 in
- Three-tier shelf
- Two roll-up zipper doors
A sloped roof and compact walk-in footprint make this a space-saving choice beside a wall or fence. The three-tier shelf organizes pots and tools, while a window and roll-up door allow airflow.
Pros
- Sloped roof for lean-to placement
- Three-tier shelf included
- Ground stakes and guy ropes included
Cons
- Maker recommends a sheltered location
- Narrower floor area than 10 x 5 ft models
Eagle Peak 10x5 Lean-To Greenhouse, PE Cover: Best for a large planted area with shelves
- 10 x 5 ft footprint
- Powder-coated steel frame
- Flower rack included
- Two roll-up zipper doors
This walk-in model measures about 10 x 5 ft and includes a flower rack for organizing plants off the ground. Its two roll-up doors provide access at both ends.
Pros
- Flower rack included
- Two roll-up doors
- Powder-coated steel frame
Cons
- Requires a broad footprint
- Assembly required
Outsunny 10x5x7 Lean-To Walk-In Greenhouse: Best for three tiers of plant storage
- 10 x 5 x 7 ft footprint
- Three tiers of shelving
- Two zippered doors
- Screened window
Six wire panels across three tiers help organize plants in a 10 x 5 ft walk-in space. Place it near a wall as recommended, and use the included stakes and guy ropes to secure it.
Pros
- Three tiers of wire shelving
- Two zippered doors
- Screened window
Cons
- Assembly required
- Large footprint needs careful siting
SAFSTAR 7x3.5x7 Mini Lean-To Greenhouse: Best for two-sided access
- 7 x 3.5 x 7 ft
- Three-tier flower rack
- Two roll-up doors
- Wall screw kit
Two large doors allow entry from either side, which can help when the greenhouse sits between a wall and a path. It also includes a three-tier rack, stakes, wind ropes and a wall screw kit.
Pros
- Two roll-up doors
- Three-tier flower rack
- Wall screw kit included
Cons
- Check both entry sides will remain reachable
- Needs a 7 ft long area
Outsunny 7x3x7 Lean-To Greenhouse, 3 Wire Shelves: Best for a compact walk-in layout
- 7 x 3 x 7 ft
- Three tiers with six wire panels
- Two roll-up doors
- Ground stakes and guy ropes
This smaller walk-in model keeps three shelf tiers within a 7 x 3 ft footprint. Place it near a wall to help reduce wind exposure.
Pros
- Compact walk-in dimensions
- Three tiers of wire shelves
- Two roll-up doors
Cons
- Assembly required
- Narrow interior limits floor-level workspace
Outsunny Lean-To Greenhouse with 3-Tier Shelves: Best for a very narrow wall-side space
- 84.6 x 18.1 x 56.7 in
- Three-tier wire shelf
- Three roll-up zippered doors
- 140 gsm PE cover
At just 18.1 in wide, this shelf-style greenhouse fits tight spaces where walk-in access is not practical. Its three roll-up doors make it easier to reach plants along the narrow interior.
Pros
- Very narrow footprint
- Three roll-up doors
- Three wire shelves
Cons
- Not a walk-in greenhouse
- Each shelf holds up to 13 lb
Our top 3 picks at a glance
-
1
Best for quick setup and roomy accessEagle Peak 10x5 Lean-To Pop-Up Greenhouse
8.7/10 our score
See it on Amazon -
2
Best for a narrow garden stripOhuhu Lean-To Greenhouse with Roll-Up Door
8.5/10 our score
See it on Amazon -
3
Best for tomatoes and young plantsOhuhu Tomato Lean-To Greenhouse
8.3/10 our score
See it on Amazon
Frequently asked questions
What is a lean-to greenhouse?
A lean-to greenhouse is designed to stand against a wall or fence, using less open yard space than a freestanding structure. These picks use their own frames and covers, so they still need a stable base and secure anchoring.
Leave enough room to open doors and reach plants.
How much space does a lean-to greenhouse need?
Measure the full footprint and leave working space at its entrance before you choose a model. The options here range from 84.6 x 18.1 in for a shelf-style unit to 10 x 5 ft for walk-in models.
Also check roof height and the path you need to carry pots and supplies.
Can a lean-to greenhouse go against a fence?
Yes, if the surface and ground suit the greenhouse and you can still reach its doors and vents. Some models include wall fasteners, while others rely on stakes and ropes.
Use the anchoring method included with your model and check the structure after strong wind.
Are lean-to greenhouses good for small gardens?
They can make use of a narrow strip beside a building or fence. A compact shelf-style model uses less floor space, while a walk-in model gives you more access and room for larger pots.
Measure the spot and plan how you'll ventilate it before buying.
What should I check before setting one up?
Check the footprint, door clearance, ground level, wall access and anchoring options. Place the greenhouse where you can reach it and manage sunlight, airflow and water.
Our guide to where to put a greenhouse covers site choice, and how to anchor a greenhouse explains ways to secure a portable frame.



