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Use a free greenhouse plan to build a backyard greenhouse that allows you to grow your favorite flowers, vegetables, and herbs all year long. Greenhouses provide seedlings and plants with warmth in the winter and cool in the summer, letting you participate in your favorite hobby every day of the year.

The free greenhouse plans listed include diagrams, illustrations, photos, written building instructions, materials/tools list, and everything else you need to build your chosen greenhouse.

After you’ve used one of these free greenhouse plans to build your DIY greenhouse, come back and browse other free woodworking plans to help you build a shedpicnic tabledog housepergolapotting benchcabin, or chicken coop.

  • 01of 13Barn Greenhouse by Ana WhiteAna-WhiteThis free greenhouse plan is for a barn-style greenhouse that will help you grow your plants while looking stylish.The free greenhouse plan includes photos, diagrams, a materials and tools list, written instructions, and videos.
  • 02of 13Geodome Greenhouse Plan by Northern HomesteadNorthern HomesteadNorthern Homestead has shared its free greenhouse plan for building a GeoDome. Use this plan and you’ll get a greenhouse that’s lightweight yet secure, absorbs lots of light, has a lot of ground growing space, and one that makes quite the statement.There’s a materials list, tools list, written directions, diagrams, and photos to help you build it.It also has other posts on its greenhouse about how to arrange plants within it, how to cover it, how to add a hot water tank, and more.
  • 03of 13Low-Cost Greenhouse Plan by The Door GardenThe Door GardenHere’s a free greenhouse plan that, when you build it, will only cost you $50 for all the materials.A materials list, construction steps, and building tips are all included in this free greenhouse plan from The Door Garden.