A portable greenhouse changes the way you garden. It extends your growing season by weeks at either end of the year, protects seedlings from sudden frost, and gives you a controlled environment to start plants long before outdoor conditions are ready. You do not need a permanent structure or a large yard to make it work.
This guide covers 9 of the best portable mini greenhouses available right now at Aosom.ca. Every pick has been chosen for its verified buyer rating, practical design, and value for money. Whether you have a small balcony, a garden fence, or an open backyard, there is a model here that fits the way you grow.
All 9 Picks at a Glance
| # | Greenhouse | Price | Rating | Size | Ideal For |
| 1 | Outsunny 4Tier Greenhouse , White | $58.99 | 4.9/5 | 28″x20″x63″ | Balcony starter |
| 2 | Outsunny 4Tier Greenhouse , Dark Green (Flash Sale) | $49.99 | 4.9/5 | Compact | Best value pick |
| 3 | Outsunny 4Tier Greenhouse with Wheels , Clear | $59.99 | 4.7/5 | 27″x20″x65″ | Moveable patio setup |
| 4 | Outsunny 3Tier Mini Greenhouse , Reinforced Cover, Green | $68.99 | 5/5 | 56.3″x18.1″x59.4″ | Toprated compact pick |
| 5 | Outsunny LeanTo Greenhouse , Green (3 Shelves, 3 RollUp Doors) | $89.99 | 5/5 | Leanto | Wall or fence mounting |
| 6 | Outsunny 3 Tier WalkIn Greenhouse , Dark Green, 4 Shelves | $73.99 | 4.9/5 | 56″x29″x77″ | Walkin with weather cover |
| 7 | Outsunny PopUp WalkIn Greenhouse , Green | $144.99 | 4.9/5 | 8′ x 6′ | Large seasonal greenhouse |
| 8 | Outsunny 8’x6’x7′ WalkIn Greenhouse , 18 Shelves | $159.99 | 4.9/5 | 8′ x 6′ x 7′ | Maximum shelf capacity |
| 9 | Outsunny Tunnel Greenhouse , Green | $58.99 | 4.8/5 | 9′ x 3′ x 3′ | Groundlevel tunnel growing |
The 9 Best Portable Greenhouses at Aosom.ca
All prices and product details below come directly from the live Aosom.ca catalogue.
1. Outsunny 28″ x 20″ x 63″ Portable Greenhouse with 4 Tier Shelves (White)
Price: $58.99 Was: $89.99 | Free Shipping
Dimensions: 28″ L x 20″ W x 63″ H
Key Feature: Four wire shelves, PE cover, steel frame, and a rollup front door in a compact white footprint.
Why It’s Great:
This is the most practical entry point for a first greenhouse setup. It is narrow enough to fit on a balcony or small patio yet tall enough to give four full shelves of growing space. s.
Pros:
- Slim 20inch depth fits tight balcony and patio spaces
- Four shelves handle seedlings, herbs, and potted plants
- PE cover keeps warmth in and wind, rain, and light frost out
- Rollup zipper door allows quick access without removing the cover
- Steel frame stays stable in outdoor conditions
Cons:
- Smaller footprint limits the size of individual plants
- Not large enough to walk into, suited to potted and traybased growing
Perfect For: First-time greenhouse owners, apartment balconies, and anyone who wants a compact, weatherproof growing space without a large footprint or high cost.
2. Outsunny 4Tier Portable Greenhouse with Steel Frame and PE Cover (Dark Green)
Price: $49.99 Was: $89.99 | Free Shipping
Dimensions: Compact tower format
Key Feature: Same fourshelf build as the White model, currently available at a flash sale price in dark green.
Why It’s Great:
Identical in build quality to the White model above but currently the lowest-priced rated option on this list.
Pros:
- Lowest price on this list for a fourshelf PE greenhouse
- Dark green finish looks natural alongside fences, hedges, and garden beds
- Four wire shelves handle trays, pots, and propagation setups
- Steel frame and PE cover hold up well across seasons
- Rollup door provides easy access without removing the cover
Cons:
- Flash sale pricing may not be permanent
- Compact tower format is not suitable for walkin use
Perfect For: Budget-conscious gardeners who want a reliable fourshelf greenhouse. The dark green finish also suits gardens where a white or clear greenhouse would stand out too much.
3. Outsunny 27″ x 20″ x 65″ Portable Greenhouse with 4 Tier Shelves and Wheels (Clear)
Price: $59.99 Was: $89.99 | Free Shipping
Dimensions: 27″ L x 20″ W x 65″ H
Key Feature: Fournier greenhouse with a clear plastic cover and builtin wheels for easy repositioning.
Why It’s Great:
The addition of wheels is a genuinely practical upgrade. If you need to chase sunlight across your patio, move the greenhouse undercover before a storm, or rearrange your outdoor space, rolling it into a new position takes seconds.
Pros:
- Builtin wheels make repositioning effortless without lifting
- Clear cover lets in more light than coloured alternatives
- Four shelves give solid vertical growing capacity in a compact footprint
- Practical for renters or anyone who rearranges their patio seasonally
- Steel frame keeps the structure stable even when being moved
Cons:
- Wheels work best on smooth flat surfaces, uneven ground may cause difficulty
- Clear cover may retain heat less effectively than thicker PE in very cold conditions
Perfect For: Gardeners on patios, decking, or smooth garden paths who want flexibility to reposition their greenhouse easily.
4. Outsunny Portable Mini Greenhouse with 3 Tier Shelves and Reinforced PE Cover (Green)
Price: $68.99 Was: $89.99 | Free Shipping
Dimensions: 56.3″ L x 18.1″ W x 59.4″ H
Key Feature: Three wide shelves with a reinforced PE cover and rollup doors – the highest-rated compact model on this list.
Why It’s Great:
A perfect 5/5 rating from verified buyers is a strong signal. The reinforced PE cover holds its shape better, resists tearing in wind, and maintains warmth more consistently than standard covers.
Pros:
- Perfect 5/5 rating from verified buyers
- Reinforced PE cover is more durable and holds heat better than standard covers
- Wide 56inch length fits full propagation trays across each shelf
- Shelves are positioned at practical working heights
- Rollup doors on each section allow targeted access without exposing the whole greenhouse
- Green finish blends into garden settings naturally
Cons:
- Three shelves rather than four means slightly less vertical capacity
- 18inch depth suits pots and trays rather than large containers
Perfect For: Gardeners who want the most reliable compact greenhouse available and will not compromise on cover quality.
5. Outsunny LeanTo Greenhouse with 3 Tier Shelves and 3 RollUp Doors (Green)
Price: $89.99 Was: $109.99 | Free Shipping
Dimensions: Leanto wallbacked format
Key Feature: Backs against a wall or fence, freeing up floor space while providing three shelves with individual rollup door access per tier.
Why It’s Great:
The lean-to design is well suited to smaller outdoor spaces. Because it backs against a wall or fence it takes up far less floor area than a freestanding greenhouse of the same internal volume.
Pros:
- Leanto format uses vertical space against a wall rather than floor area
- Three individual rollup doors per shelf for targeted access with less heat loss
- Works indoors against a bright wall or outdoors against a fence
- Green finish integrates naturally with garden fencing and backdrops
- Good option for people who have walls but limited open floor space
Cons:
- Requires a stable wall or fence structure to lean against
- Leanto format reduces airflow compared to fully opensided designs
Perfect For: Anyone with a walled patio, garage side wall, or garden fence who wants to maximise growing space without using significant floor area.
6. Outsunny WalkIn Greenhouse with 4 Shelves, RollUp Door and Weatherized Cover – Dark Green
Price: $73.99 Was: $89.99 | Free Shipping
Dimensions: 56″ L x 29″ W x 77″ H
Key Feature: Walk in height with a weatherized cover, four shelves, and a fullwidth rollup front door.
Why It’s Great:
At 77 inches tall this is the first model on the list where you can actually step inside. The weatherized cover handles sustained wind, rain, and temperature swings better than standard PE.
Pros:
- 77 inch walking height lets you tend to plants at a comfortable standing height
- Weatherized cover handles sustained outdoor exposure better than standard PE
- Four shelves across a 29inch depth handle full-size containers and growing trays
- Fullwidth rollup front door gives easy access
Cons:
- Larger footprint than tower models needs more open outdoor space
- Single front door only no secondary ventilation point
Perfect For: Gardeners who are ready to move beyond a compact tower greenhouse and want walk-in access, a better cover, and enough shelf space to grow seriously through shoulder seasons.
7. Outsunny 8′ x 6′ Portable PopUp WalkIn Greenhouse with RollUp Door and 2 Windows (Green)
Price: $144.99 Was: $279.99 | Free Shipping
Dimensions: 8′ L x 6′ W x approx. 6.5′ H
Key Feature: Popup walkin design with two ventilation windows and a full rollup entry door the most spacious portable option on this list.
Why It’s Great:
Eight by six feet of floor space puts this in a different category from the compact tower models. You can fit full grown bags, large containers, and small raised beds inside.
Pros:
- 8 x 6 foot footprint fits large containers, grow bags, and full growing trays
- Two ventilation windows prevent overheating on sunny days
- Popup design can be folded and stored during winter
- Full rollup entry door allows easy access with tools and watering equipment
- Significantly discounted from original price
Cons:
- Larger footprint requires significant outdoor floor space
- Popup construction is less structurally rigid than fixed frame designs in strong wind
Perfect For: Serious home gardeners who want genuine growing season extension, enough space for large plants and containers.
8. Outsunny 8′ x 6′ x 7′ WalkIn Greenhouse with 18 Shelves and UVResistant Cover
Price: $159.99 Was: $329.99 | Free Shipping
Dimensions: 8′ L x 6′ W x 7′ H
Key Feature: Eighteen shelves across a football walking structure with a UV-resistant and water-resistant weather cover.
Why It’s Great:
Eighteen shelves across 8 x 6 x 7 feet gives you room to run a proper propagation setup, overwinter dozens of plants, or grow an entire season of vegetables and herbs simultaneously.
Pros:
- 18 shelves across a full walking structure maximum capacity on this list
- UV and water-resistant cover holds up to extended outdoor exposure without degrading quickly
- 7foot ceiling gives full standing headroom with space above the top shelf
- 8 x 6 footprint fits grow bags, containers, and small raised beds inside
- Rollup door runs the full entry width for easy access
- More than 50 percent off the original price
Cons:
- Requires significant outdoor space not suited to small balconies or patios
- Assembly for a structure this size takes longer than compact models
Perfect For: Dedicated home gardeners, plant collectors, and anyone running a serious propagation or overwintering setup who needs the most growing capacity a portable greenhouse can offer.
9. Outsunny 9′ x 3′ x 3′ Portable Tunnel Greenhouse with Zippered RollUp Doors (Green)
Price: $58.99 Was: $69.99 | Free Shipping
Dimensions: 9′ L x 3′ W x 3′ H
Key Feature: Groundlevel tunnel format with a PE cover and zippered rollup doors at both ends designed to cover plants growing directly in the ground.
Why It’s Great:
Every other model on this list holds pots and trays on shelves. This one is built for a completely different purpose protecting plants already growing in the ground or in a raised bed.
Pros:
- Tunnel format covers 9 feet of inground or raised bed planting directly
- Zippered doors at both ends for airflow control and access from either side
- PE cover traps soil heat and protects against late frosts and cold snaps
- Plants grow naturally in place with no shelving required
- Lightweight and compact enough to store flat when not in use
Cons:
- Not suitable for potted plants or seedling trays this is a groundcover design
- 3foot height limits the mature plant height that fits comfortably inside
Perfect For: Vegetable gardeners growing directly in the ground or in raised beds who want to extend their season without changing how or where their plants grow.
Getting the Most from Your Portable Greenhouse
Positioning
- Place in full sun (south or southwest-facing) for maximum light
- Avoid overhanging trees (shade + falling debris damage)
- Secure base on windy sites using stakes or anchors
Ventilation
Open the roll-up doors during warm afternoons to prevent heat buildup. Overheating is one of the most common reasons seedlings fail inside greenhouses. This happens because of how greenhouses work, especially when sunlight enters through the cover, warms the interior, and the trapped heat can quickly build up if airflow is restricted.
Seasonal Storage
- Clean and fully dry cover before storing (prevents mould)
- Store frame indoors to avoid freeze/thaw damage
- Roll (don’t fold) covers to prevent cracks
Cover Care
- Check for small tears early and use repair tape immediately
- Avoid placing under dripping roof edges (faster wear)
Ready to Grow Longer?
A portable greenhouse does not need to be expensive or complicated to make a real difference to how you garden. The nine options on this list cover everything from a compact fourshelf balcony tower to a walking structure with eighteen shelves, and every single one is rated by Canadian buyers who have used them in real conditions.
FAQs
Most portable greenhouses are designed for the growing season, not year-round outdoor use. PE and polyethylene covers degrade faster when left outdoors through repeated freeze/thaw cycles. The best practice is to clean and store them before winter.
For most spring and autumn use, the cover alone traps enough ambient heat to protect plants from light frosts. For colder conditions or winter growing, a small electric propagator mat under seedling trays or a low-wattage space heater can extend the useful temperature range..
Most Outsunny models include ground stakes or anchor points in the base of the frame. Drive these into soft ground using a mallet. On hard surfaces like decking or concrete, sandbags placed against the base legs provide good stability.
No. All portable greenhouses at Aosom.ca arrive flatpacked. Most compact models take 15 to 30 minutes to assemble using the included hardware. Larger walking models take 30 to 60 minutes and benefit from a second pair of hands to hold the frame while the cover is fitted.
Aosom.ca offers a 30day return window from the date of delivery. If your greenhouse arrives damaged or develops a manufacturing fault within the one year warranty period, contact Aosom.ca support with your order number and they will arrange a replacement or refund depending on the situation.