Good thoughts, gents...I appreciate the input. This spring/summer I am doing an outdoor bucket grow. I feed the girls every morning with about 2 cups of Alaska Fish Fert/MorBloom solution (2 tbsp each in a gal of water). Then in early afternoon I give them a good soaking with straight water. The soil is Home Depot's "SuperSoil" brand with about 20% vermiculite blended in, so it drains very well. Unlike being in the real ground, it doesn't "hold" the water very well. The top couple inches of soil are quite dry by the next day, so I'm pretty confident the plants are getting a good wet-dry cycle.