Hydroponics is a method of growing plants without using soil. Most often water is used in hydroponic gardening, hence the name. No doubt you can find a more scientific description of the process. But for the home gardener, that’s probably all you need to know.

Perhaps you’ve wondered how you can grow plants hydroponically without soil. Many people are convinced that soil is necessary for the growth of a plant. It’s a source of water, energy, support and nutrients. These are all required in order for the plant to thrive. But these elements are also available from other sources.

Plants certainly need water. However, soil isn’t the only way to provide it. You’ll find that a lot of plants grow naturally in inhospitable environments such as sand and gravel, or even floating atop the water.

The energy provided by the sun’s rays and its heat are also essential to a plant. But sun warmed earth isn’t the only source of energy. The sun’s rays have the same effect on a plant’s leaves regardless of whether it’s in the ground or not. Photosynthesis, essential to a plant’s wellbeing, will take place just as long as the top part of the plant gets sufficient light. There are plants that don’t require any light whatsoever. They will, however, still need some energy to power their natural growth processes.

Many of the plants that appeal to the home gardener need some physical support. Most often, this is achieved by planting them in the ground. That’s why the roots of a plant spread, and its stems are able to resist strong winds. However, there are other options for supporting your plants. For example, string interwoven on a supporting frame or popsicle sticks attached to the top of a glass will work just fine.

A healthy plant also requires adequate nutrition. These include nitrogen, phosphorus, potassium and various trace elements. Normally, a plant will absorb these nutrients from the earth that surrounds it. However, they can also get these essential nutrients in other ways.

Submerging the plant’s roots in water that contains a liquid nutrient solution is a popular method. There are systems that utilize a hydroponics grow tent to retain moisture. A nutrient solution is misted onto the roots regularly in order to keep them saturated. This is similar to another growing technique that doesn’t use soil, the practice of aeroponics.

Hydroponic gardening can produce beautiful, healthy plants. There are many kinds of plants that can thrive above ground. Just make sure you provide for their needs.