A greenhouse is an asset to both gardeners using the hydroponic method, as well as those who choose to grow using soil. A greenhouse has the same advantages for either, generally speaking. Nevertheless, hydroponic gardening is particularly appropriate for a greenhouse setting, as temperature, airflow and light are controlled with greater ease.
Welsh onions, peas, strawberries, plus other plants grow quite well in a hydroponic greenhouse. Orchids and other flowers are also well suited for greenhouse gardening.
Hydroponic gardeners find controlling light to be particularly challenging. Since the plant is grown in water rather than soil, algal growth can be an issue; however, preventing light from getting to the surface of the water is easy in a greenhouse, since light can be controlled with shades and shutters.
Of course plants grown hydroponically need lots of light in order to thrive, just like those grown using soil. You will not get more light in a greenhouse than you would outdoors. Inside the greenhouse, the air is warmer and the light is distributed more evenly due to the light being diffused and filtered. The plants will be given enough sunlight while they are kept safe from the damage that cold weather can cause.
In winter, you will get low temperatures in northern climates of course, but the sun will be be full for several hours. A greenhouse wall made from translucent polycarbonate can keep the interior of a greenhouse at 100 degrees Fahrenheit even when it is 15 degrees outside!
Like plants grown in soil, hydroponically grown plants require a constant temperature and installing vents and/or fans in your greenhouse can keep it from getting to hot.
Using a greenhouse lets you make the best of your gardening opportunities. Without a greenhouse, your only option may be within your house, something not everyone can do.
Growing plants in the home inhibits the ability to create sufficient light and watering systems for them. Very rarely do homeowners have the room to run irrigation systems, or install LED grow light panels or metal halide lights just for their vegetables.
With a greenhouse, the systems can be moved where they are best for the plants, making gardening easier for you. Proper controll of water and light is critical to the success of hydroponic gardens, more important than for soil gardening that is naturally self-regulating.
It is very important as well as easier to set up a feeding system in a greenhouse for hydroponically grown plants. Plants will gain most of the nutrients they need easily when they are planted in good soil. Conversly, the keeper of a hydroponic garden must account for the delivery of all of these nutrients by other means.
pH levels are also something to be considered. The pH is able to change with a lot more ease in a hydroponic setting. Acid and alkaline levels can shift rapidly when growing in water. However, in a hydroponic garden a gardener can more easily set up automatic pH controls.
You can buy a greenhouse pre-built or you can make one of your own. These are a great investment for anyone interested in indoor hydroponic gardening. There are a variety of sizes, with modules that allow it to expand as your garden does.
