• Although most plants use soil to grow in nature, hydroponic plant systems allow growers to create chemically ideal conditions for plants. Often, hydroponic plant seeds and the systems they are grown in produce brighter blooms, bigger vegetables and greener leaves on many plants that also grow in soil.
  
  

Tomatoes

• According to Hydroponics Online, "tomatoes are the most popular commercial hydroponic crop." Tomato seeds of many varieties adapt well to hydroponics and are grown with larger species in larger and better-equipped hydroponics systems. Growers prefer drip systems to grow tomatoes and the produce takes up to 100 days to fruit. After initial fruiting, the tomato plant continue fruiting up to a year.
  
  

Beans

• Another easily grown seed for the hydroponic garden is the green bean. Beans grow well in the loose growing conditions of a hydroponic growing system, although a trellis or support must be provided for climbing beans such as pole beans. Perlite and clay pebble hydroponic systems are best for growing beans, which produce after about eight weeks.
  
  

Basil

• Spices, such as basil, grow well from the seed in a hydroponic system. This plant is both fast growing and disease resistant. As with basil grown in soil, prune buds once the plant reaches maturity at about 12 to 18 inches. Removing the buds stimulates leafy growth. Basil should be removed and replaced in your hydroponic system every three to four months.
  
  

Lettuce

• Lettuce seeds grow in much the same hydroponic environment as basil and can help diversify your hydroponic garden. Leaf lettuce grows better in hydroponic systems than head lettuce. Either should be planted in a Nutrient Film Technique system, which feeds a constant source of nutrients to the plant. Harvest this plant in about 35 to 45 days by simply clipping the leaves.
  
  

Zinnia

• The zinnia has adapted very well to hydroponic gardening systems. Zinnias should be grown in an NFT solution. A study performed by the University of Toledo suggests that fortifying the growing solution with silicon may help zinnias fight off bacteria and powdery mildew. Zinnias come in a variety of colors from apricot to pink to red and white.