It's best to water early in the day.  Watering later in the day often evaporates quickly in the heat, can burn the foliage of plants, and if done too late in the day can promote fungal disease. Inconsistent watering during hot, dry weather results in bitter cucumbers. 

Harvest large broccoli heads leaving small side shoots for a later season harvest. 

Baby Summer Squash have a superior flavor to large squashes.