Thinning Seed packages recommend that extra seeds be planted since not all will come up. Also, beet seeds come in clusters. After the seeds sprout, the weaker seedlings should be removed to give the rest enough room to grow. Some crops, such as onions and beets, can be partially harvested early to give the remanining ones more room. Watering Vegetables need a constant supply of water.
Water stress causes hard cored carrots and bitter lettuce.
Studies have shown that production is almost doubled if plants have a constant supply of water. The best time to water is in the morning so plant leaves dry off quickly. Never water late in the evening so leaves are wet overnight. A few plants, such as tomatoes, will get burned if water drops stand on the leaves in hot sun. However, cool season plants will benefit from a cooling spray on hot days.