NEW! Patio Furniture

Comfortable, durable, hand woven wicker

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Shade Cloth

Shade fabric, shade sails, shade structures and shade paint

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Cold Frames, Hoop Houses and High Tunnels

These structures feature strong roll-formed steel frames, multiple sizes, and great prices!

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Basic Cold Frames, Cold Frame Packages, and all the Cold Frame Accessories You Need

Widths are standard and lengths variable with either 6' or 4' centers.

Learn & Grow   View Articles


From growing vegetables to greenhouse care, we have created and compiled a huge selection of gardening and growing articles for your reading pleasure.

Overstock Deals   View Deals


Find great deals and low prices in our Overstock Department, where you can browse a wide variety of gardening supplies, tools, and even greenhouses.



New Products

Twist II Clean Filter
Twist II Clean Filter

The Twist II Clean sediment filter is an easy and effective way to remove sand and sediment from an incoming water supply.

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Protilizer Seed & Plant Activator
Protilizer Seed & Plant Activator

Protilizer Seed & Plant Activator works to create a healthier soil environment by introducing billions of beneficial microbes, humic acid, kelp, ...

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Organic 5-5-5 All Purpose Plant Food
Organic 5-5-5 All Purpose Plant Food

Organic 5-5-5 All-Purpose Plant Food is ideal for vegetables, flowers, shrubs, trees, and bulbs. It contains phosphorous and mycorrhizae to promo...

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Benchmaster Caster- locking, 150 lb load rating
Benchmaster Caster- locking, 150 lb load rating

This locking caster works with Structural Plastic benches and features a 150 lb. load rating.

Price: $21.00

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We Sell the Things That Make Plants Grow

Greenhouse Megastore is not only a leading online retailer for greenhouses and greenhouse supplies, but also garden supplies of all types, plant pots, polycarbonate panels and other plastic sheets, shade cloth, weed barrier, hydroponic supplies, grow lights and much, much more! Shop from our commercial quality products without being forced to pay commercial prices or order commercial quantities. Greenhouse Megastore is perfect for the professional grower and the hobby gardener alike!

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