Greenhouses are no longer just for farmers or commercial growers—they’re increasingly popular among homeowners, hobby gardeners, and sustainability enthusiasts. Whether you’re looking for a small green house, a luxury glass greenhouse, or a huge greenhouse for sale, the modern market is filled with choices tailored to every budget, yard size, and skill level.
In this guide, we’ll walk you through the best types of greenhouses for sale today, with insights into materials, brands like Janssens Greenhouses, and answers to common questions like “How much are greenhouses?” and “What’s the best yard greenhouse for beginners?”
Why Invest in a Greenhouse?
A greenhouse gives you more control over the growing environment—allowing you to start seeds early, extend the harvest season, and protect plants from pests, frost, and excessive rain.
Top reasons people invest in greenhouses:
- Year-round growing of vegetables, herbs, and flowers
- Protection from unpredictable weather
- Higher yields due to better plant health
- Sustainable food production
- Increased property value, especially with premium designs like a glass greenhouse
Types of Greenhouses: From Small to Spacious
1. Small Green Houses
If you’re short on space or just starting out, a small green house is a cost-effective and manageable entry point.
Pros:
- Easy to set up and maintain
- Perfect for patios, balconies, or small yards
- Ideal for herbs, leafy greens, and seed starting
Common materials: Polycarbonate panels, PVC covers, or even real glass.
2. Portable Greenhouses
Portable greenhouses are lightweight structures that can be easily moved or stored. They range from mini cold frames to walk-in vertical models with shelving.
Pros:
- Affordable and flexible
- No need for permanent installation
- Great for renters or seasonal gardeners
Tip: Use tie-downs or sandbags to secure portable greenhouses in windy areas.
3. Glass Greenhouses
A glass greenhouse offers unmatched beauty and performance. Often found in luxury homes and botanical gardens, these structures maximize sunlight and elevate your landscape’s aesthetics.
Pros:
- High light transmission
- Long-lasting and elegant
- Increases home value
Cons: Heavier and more expensive than polycarbonate alternatives.
4. Yard Greenhouses
A yard greenhouse refers to any mid-sized greenhouse designed for residential outdoor spaces. These can be made of glass, polycarbonate, or reinforced plastic, and come in a range of sizes from 6x8 feet to 12x20 feet or more.
Great for:
- Families who want to grow more produce
- Gardeners ready to upgrade from small or portable options
5. Huge Greenhouses for Sale
If you’re running a homestead or considering commercial growing, a huge greenhouse for sale might suit your needs. These structures can be 500+ square feet and include advanced features like irrigation systems, automated vents, and climate control.
Best for:
- Serious growers
- Small businesses or CSA farms
- High-volume vegetable production
How Much Are Greenhouses?
One of the most common questions is: How much are greenhouses?
Here’s a general price range based on size and materials:
|
Greenhouse Type |
Size |
Price Range |
|
Small green house |
3x3 to 6x4 ft |
$50 – $300 |
|
Portable greenhouse |
6x8 ft (walk-in) |
$100 – $500 |
|
Yard greenhouse |
8x10 to 12x12 ft |
$500 – $3,000 |
|
Glass greenhouse |
8x10 ft and up |
$2,000 – $15,000+ |
|
Huge greenhouse (pro) |
20x30 ft and up |
$10,000 – $50,000+ |
Pro Tip: Consider additional costs like flooring, shelving, heating, or irrigation systems when budgeting.
Janssens Greenhouses: A Premium Option
When it comes to premium glass greenhouse brands, Janssens Greenhouses stand out. Built in Belgium and distributed globally, these structures combine European craftsmanship with modern functionality.
Why Choose Janssens?
- Tempered safety glass for superior durability
- Aluminum frames that won’t rust or warp
- Customizable options: roof vents, double doors, cresting, and more
- Elegant designs ranging from traditional to Victorian-inspired
Popular models:
- Janssens Junior Victorian: Compact yet stylish—perfect for upscale urban backyards.
- Royal Victorian Orangerie: A show-stopping feature for estate gardens or serious growers.
Though they’re on the higher end of the greenhouse sales spectrum, Janssens greenhouses offer long-term value, performance, and aesthetic appeal.
Greenhouse Sales: When and Where to Buy
The best time to shop greenhouse sales is during seasonal clearance events—typically:
- Late summer to fall (clearing out inventory)
- Late winter to early spring (pre-season deals)
Where to Find Greenhouses for Sale:
- Online retailers: Greenhouse Megastore, Wayfair, Home Depot
- Specialty manufacturers: Janssens, Palram, Riga
- Local garden centers: Occasionally offer installation and service
- Secondhand platforms: Craigslist, Facebook Marketplace (great for used glass greenhouses or DIY frames)
Keep an eye out for bundled packages that include shelving, thermometers, or irrigation kits.
Features to Look for in Any Greenhouse
No matter the size or type, certain features are essential for long-term success:
- Ventilation
- Roof vents, side vents, or automatic vent openers prevent overheating.
- Insulation
- Glass or twin-wall polycarbonate helps retain heat in colder months.
- Anchoring
- Secure your structure, especially if it's a portable greenhouse or placed in an open yard.
- Shelving and Layout
- Maximize space with vertical plant stands, hanging baskets, or modular benches.
- Flooring
- Consider gravel, brick, or rubber mats for drainage and comfort.
Bonus Tips for Greenhouse Success
- Monitor temperature: Use a digital thermometer with humidity sensors.
- Use grow lights: Especially in winter or shaded areas.
- Install a rain barrel: Collect runoff from gutters for eco-friendly watering.
- Keep it clean: Regularly disinfect tools, pots, and surfaces to prevent disease.
Conclusion
Whether you’re eyeing a simple small green house, a compact portable greenhouse, or a luxury glass greenhouse from Janssens, there’s never been a better time to join the greenhouse gardening movement. The variety of greenhouses for sale today accommodates every lifestyle—from backyard hobbyists to professional growers.
With options for every budget and yard size, and frequent greenhouse sales throughout the year, your ideal garden structure is more accessible than ever. Just remember to evaluate your space, climate, and long-term goals when choosing between a yard greenhouse, portable model, or a huge greenhouse for sale.