How to Build a Greenhouse

A greenhouse is a terrific way to grow plants all year round, regardless of the weather conditions. A greenhouse creates a microclimate that is ideal for plant growth, by trapping heat and light from the sun. You can use a greenhouse to start seeds, propagate cuttings, or grow crops that need a longer or warmer season.

Choose a location

The first step is to choose a location for your greenhouse that gets plenty of sunlight throughout the day. Ideally, you want to orient your greenhouse so that the longest side faces south.

Build a foundation

The next step is to build a foundation for your greenhouse that will support the structure and keep it stable. You can use ground contact-rated wood or poured concrete for your foundation.

Build a frame

The third step is to build a frame for your greenhouse using wood or PVC pipes. You can use 2x4s or 2x6s for the base, uprights, and rafters of your frame, and connect them with screws or nails.

Cover your frame

The last step is to cover your frame with plastic sheeting or greenhouse film. You should attach your covering material to your frame with staples, clips, or tape, and make sure there are no gaps or holes.