Whether you have a balcony, small patio, or a spacious backyard, investing in a greenhouse is one of the most rewarding ways to grow plants year-round. If you're searching to buy greenhouse options that suit your space, style, and budget, there are a range of choices—from mini glass greenhouse models to complete greenhouse building kits.
This guide breaks down the most popular types of outdoor green houses, their features, advantages, and what to look for in greenhouse kits on sale—especially if you’re working with a small space or are new to gardening.
Why Buy a Greenhouse?
Greenhouses provide the perfect controlled environment for plants, allowing you to:
- Extend the growing season
- Protect against frost, pests, and weather extremes
- Grow exotic or off-season plants
- Start seedlings indoors for transplanting
Even a small green house can make a big difference in your gardening success—especially in unpredictable climates or urban settings.
Types of Greenhouses: Choosing What’s Right for You
When you’re ready to buy a greenhouse, you’ll come across many categories. The best choice depends on your available space, gardening goals, and budget.
1. Small Green Houses
Ideal for beginners or those with limited space, small green houses are compact and affordable. They often fit on patios or in corners of a backyard, making them perfect for container gardening or seed starting.
2. Mini Glass Greenhouse
A mini glass greenhouse offers the timeless look and efficiency of traditional glass in a smaller format. These are perfect for herbs, succulents, or ornamental plants and often double as decorative features on decks or windowsills.
Features:
- Durable glass panels for maximum sunlight
- Great aesthetics
- Ideal for compact plants or display gardening
3. Outdoor Greenhouse (Small)
For those wanting something more weather-resistant, an outdoor greenhouse small in size but made of polycarbonate or toughened glass panels offers a long-lasting solution. These units typically range from 4x4 feet to 6x8 feet and often include shelves or modular layouts.
Best for:
- Herb gardens
- Starting seeds for transplanting
- Small vegetable plots
Glass Greenhouses: Classic Design, Long-Term Performance
A glass greenhouse is one of the most beautiful and efficient structures you can own. While more expensive than plastic alternatives, they provide unmatched visibility and long-term durability.
Advantages of Glass Greenhouses:
- Full-spectrum light: Ideal for photosynthesis
- Long-lasting: Tempered glass lasts for decades
- Timeless design: Enhances property value and garden aesthetics
- Less yellowing: Unlike polycarbonate, glass stays clear
Disadvantages:
- Heavier and more permanent
- Higher initial cost
- May require professional installation
If you love the look and feel of a classic English garden, a glass greenhouse is an excellent investment.
Greenhouse Building Kits: DIY Convenience
If you’re handy or enjoy projects, greenhouse building kits offer a flexible, customizable way to create your own outdoor greenhouse. These kits typically include the frame, panels, hardware, and instructions—everything you need to assemble it yourself.
What’s Included in Greenhouse Kits:
- Pre-cut frames (usually aluminum or galvanized steel)
- Wall and roof panels (polycarbonate or glass)
- Anchoring hardware
- Optional shelving or base frames
Greenhouse kits on sale are often available in early spring or fall, so it’s a great time to buy during those off-peak months.
What to Look for in a Greenhouse Kit
When shopping greenhouse kits on sale, keep the following in mind:
1. Material of Panels
- Glass: Clear visibility, heavy-duty, long lifespan
- Polycarbonate: Lightweight, UV-resistant, slightly opaque for diffused light
2. Frame Construction
- Aluminum: Lightweight, rust-resistant
- Steel: Heavier, more robust, ideal for windier areas
- Wood: Aesthetic appeal, but higher maintenance
3. Size & Layout
- Choose a size that fits your available outdoor space while allowing room to move and grow
- Make sure there’s enough vertical space for tall plants or shelving systems
4. Ventilation
- Look for roof vents, roll-up side panels, or automatic vent openers
- Ventilation is crucial to prevent mold, mildew, and overheating
5. Anchoring
Especially important for outdoor green houses, strong anchors will prevent tipping during wind or storms. Many kits include ground spikes, but concrete or gravel bases offer even better support.
Best Use Cases for Small and Mini Greenhouses
Small Green House (4x6 or 6x8 ft)
Perfect for hobbyists, these greenhouses support:
- Tomatoes, lettuce, spinach, cucumbers
- Overwintering potted plants
- Growing microgreens and herbs
Mini Glass Greenhouse
Best suited for:
- Windowsills or tabletops
- Propagating cuttings
- Displaying indoor plants
Outdoor Greenhouse Small Kit
Ideal for:
- Backyard gardens
- DIY vegetable production
- Year-round growing with added insulation or heating
Where to Buy Greenhouse Kits on Sale
You can find greenhouse kits on sale through a variety of outlets, especially during seasonal transitions:
Online Retailers:
- Amazon
- Wayfair
- Greenhouse Megastore
- Home Depot
- Walmart
Specialty Brands:
- Palram
- Exaco
- Rion
- Outsunny
Be sure to check reviews, return policies, and what’s included (some kits don’t come with flooring or shelving).
How Much Does a Small Greenhouse Cost?
Prices can vary depending on size and materials. Here's a general range:
|
Type |
Size |
Price Range |
|
Mini Glass Greenhouse |
1–3 feet |
$30 – $150 |
|
Small Green House Kit |
4x4 to 6x8 ft |
$200 – $800 |
|
Glass Greenhouse (8x10 ft) |
Premium build |
$1,500 – $6,000+ |
|
Greenhouse Building Kits |
Varies |
$300 – $5,000 |
Prices often drop during clearance events or seasonal promotions—so keep an eye out for greenhouse kits on sale around spring or fall.
Tips for Maximizing a Small Greenhouse
Even if you're working with a compact space, a small green house or mini glass greenhouse can yield impressive results with the right approach:
- Vertical shelving: Stack plants to make the most of limited floor space
- Hanging planters: Utilize ceiling or wall space
- Grow lights: Extend growing hours indoors or during winter
- Portable heaters or heat mats: Keep temperatures optimal for growth
- Thermometers and humidity monitors: Help maintain the perfect growing environment
Conclusion: Your Perfect Greenhouse Is Closer Than You Think
Whether you're just beginning your gardening journey or ready to upgrade to a full glass greenhouse, there are more options than ever before. From budget-friendly greenhouse kits on sale to premium greenhouse building kits, the perfect structure is out there—no matter your space or goals.
So if you're ready to buy greenhouse models that match your backyard, balcony, or patio, consider:
- A mini glass greenhouse for small herbs or seedlings
- A small green house for seasonal vegetables
- An outdoor greenhouse small enough for any yard but powerful enough for year-round growing
With thoughtful planning and the right setup, even the smallest greenhouse can lead to big rewards.