Greenhouses are great to have for so many reasons.  They extend the growing season in cold climates and can allow you to grow varieties of plants you may not otherwise be able to grow in your area.  They are perfect for starting seeds and can provide a nice little calming retreat.  Large or small, building a greenhouse doesn’t have to break the bank.  Here are 13 inexpensive DIY greenhouse ideas that include plans or tutorials.

1. This simple hoop greenhouse by PondPlantGirl on instructables cost less than $25 to build.  All you need is some PVC pipe with connectors, zip ties, and plastic sheeting.  The full set of instructions is available here.



2. For something a little larger and more elaborate, check out this greenhouse project by Kenton Knowles on Mother Earth News.  This gorgeous greenhouse is nice enough that it could double as a guest house.  The cost is higher, but a building like this would make a beautiful asset to most properties, and it could be built out of recycled materials to save money.



3. This beautiful greenhouse was built out of recycled materials by Montana Wildlife Gardener.  Check out their building process and all the wonderful uses for this greenhouse here.



4. The Door Garden provides a detailed set of instructions for how to build this nice 165 square foot hoop greenhouse – and it costs less than $1 per square foot.