Discover the benefits of greenhouses and how to build one that suits your gardening needs!
Why Build a Greenhouse?
Greenhouses are a valuable addition to any garden. They allow for year-round growing, protect tender plants, and make propagating plants much easier. Whether you're a beginner or a seasoned gardener, a greenhouse can enhance your gardening experience.
Choosing the Right Location
The ideal greenhouse location is a southern exposure, which maximizes sunlight. If that’s not possible, consider southeast, east, southwest, or west exposures in that order. Avoid northern exposures, as they receive the least light. Afternoon shade from deciduous trees can also be beneficial during summer while allowing maximum light in winter when the trees shed their leaves.
Free-Standing vs. Attached Greenhouses
- Free-Standing Greenhouses: Offer more placement options and can be built to any size.
- Attached Greenhouses: Require fewer materials and can use radiant heat from your house, especially on southern exposures.
Greenhouse Materials
- Glass: Long-lasting and sustainable but heavy, expensive, and requires a sturdy framework.
- Polycarbonate or Fiberglass Panels: Lighter, more affordable, and easier to fabricate but with a shorter lifespan of 7–12 years.
- Polyethylene Film: The cheapest and easiest to install option, but with a service life of only about four years.
Heating and Ventilation
Maintaining the right temperature is crucial. Greenhouses typically require about 60°F for active growing and 40°F for season extension. Heating options include forced air, steam, radiant heat, or alternative methods like compost heat and passive solar. Ventilation is equally important to prevent overheating. Consider automatic vent openers and fans for efficient temperature control.
Greenhouse Kits
If building from scratch feels overwhelming, greenhouse kits are a convenient option. They come with pre-measured materials and instructions, making the process quicker and easier.
Start your greenhouse project today and enjoy year-round gardening. Grow organic for life!
