People think of a greenhouse as a construction that will allow their plants to grow when conditions outside aren't right for them. You could think of a greenhouse in another way too though – as a place that will help you enjoy gardening even when the weather outside is completely unacceptable. Get into your little cozy greenhouse world, and it's always a perfect environment for a bit of gardening – warm, moist and fresh. It isn't that hard to build the best greenhouse for your plants.
The first thing you need to understand though is that there is no one “best” greenhouse that you can just choose to build. What makes the best greenhouse will depend on what your plants need, what kind of climate in general your part of the country gets, and how large you need it to be.
When people hear of green houses, they right away imagine a kind of tropical hothouse – a place that protects the plants inside from the cold and harsh weather outside. While greenhouses can be that, it's not all they have to be. If you live in Southern California where it's nice and warm year-round, you can still grow winter plants in a greenhouse that doesn't have any added heat. Or you could just use it to grow your regular plants for longer.
The exact kind of greenhouse you build will depend a great deal on what you plan to grow. If for instance, you're mainly interested in a greenhouse to help give your seedlings a head start in a nice, protected space, you don't need anything more than a small construction. If you want to grow fruits and vegetables like melons, tomatoes and cucumbers on the other hand, you'll need to build a fairly large greenhouse somewhere that gets a lot of sun. And you’ll need to build it quite tall. Cabbages on the other hand, will need a tall greenhouse – they are pretty well-grounded.
The traditional greenhouse – the large glass or plastic tent-like construction that you recall from pictures – is usually used in places where the climate outside is never hospitable or in places where you wish to mainly grow plants that need a controlled environment. A greenhouse that size usually is the main attraction in your garden.
One of the best greenhouse decisions you can make will have to do with how you build to conserve electricity, water and heating bills. Many people will build their greenhouse so that it abuts on their home. When it shares a wall with their home, they can easily pipe central heating heat from the home or water from the home, directly in. You can save a lot on heating expenses.