Answer:Begonia, Cardinal Flower, Ageratum, Dusty Miller, Viola, Sweet Alyssum, Dahlia, Snapdragon and Coleus along with the always popular Dwarf Marigold. In my experience the trick is to keep the soil moist throughout the day, and this can be hard with the smaller soil capacity boxes such as yours, especially when the weather turns hot. You might try using a water holding polymer in the soil mix to help keep the soil evenly moist. The constant watering and small soil quantity mean the soil will be depleted rather quickly. You might also try using a water soluble fertilizer for flowering plants on a regular basis as indicated on the label instructions, as well as an occasional watering with compost tea. Finally, make sure you deadhead, or remove spent flowers and forming seed pods, every day or so to help keep the plants actively blooming.
Q&A Library Searching Tips