Harvest them early while tender. Then replant again and again to keep a steady succession of crops on line. Make certain the beds are evenly moist at all times. For those of you who are transplanting to outside beds, be sure to harden off your seedlings first. You do this by gradually getting the seedlings accustomed to the light and temperature differences.
Water quality is very important.
Rainwater or what is known as soft water is ideal but not always available. Select crops for weather conditions prevailing at each time of the year. Fall and spring crops for cool areas or climes and summer crops for the warm areas or climes. The ideal temperature for the nutrient solution should be around 65 degrees Fahrenheit. More specific instructions will be given for each particular seed category, not only in this text but also on the seed package itself.