Greenhouse Heating

Gas and Electric Heaters with Accessories

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Frost Protection

Be ready to protect your plants when the weather turns

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Plastic Covering for all kinds of uses

Greenhouse Megastore has plastic film and panels pre-cut and ready to ship.

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Poly Film, Overwintering Film, Polycarbonate Panels, and Plastic Sheets

Find the plastic covering you need for outdoor protection.

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

Capillary Mat Distribution System
Capillary Mat Distribution System

The Capillary Mat Distribution System includes all accessories needed to create a watering system that fits perfectly to the 4' or 6' wide Capill...

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Cosmo 32
Cosmo 32" Tall Planter

The Cosmopolitan Tall planter comes in two sizes and a variety of colors.

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ShelterTech Farm Building - Round Style
ShelterTech Farm Building - Round Style

The ShelterTech Farm Buildings from ShelterLogic offer over a decade of all-weather protection and storage for trucks, SUVs, ATVs, snowmobiles, law...

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Cosmo 18
Cosmo 18" Square Planter

The Cosmopolitan Square planter comes in two sizes and a variety of colors.

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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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