The Care of Burning Bush Begonias

Position Burning Bush begonias where they will receive bright yet diffuse light for six to nine hours each day. Supplement available light with a fluorescent grow-lamp if sufficient natural light is unavailable. Rotate the plant often if using fluorescent lamps so that each side receives equal light.

Provide a humid environment for the Burning Bush begonia. Set the planter on a large, shallow tray lined with a layer of pea gravel or small river stones. Pour water onto the gravel. Replenish the water as it evaporates so the plant is constantly provided with moist air.

Water Burning Bush begonias whenever the soil surface feels fairly dry when pressed. Add water to the soil slowly and allow it to soak in before adding more. Water only until the soil feels moderately moist in the top 3 inches.

Feed Burning Bush begonias once a week during the growing season with a well-balanced, 10-10-10 ratio fertilizer diluted to half-strength. Follow the label instructions carefully to avoid harming the plant, but use only half the recommended dosage diluted in water. Feed only from April until early September.

Prune Burning Bush begonias early in the growing season to promote a fuller, bushier appearance. Cut off the top few inches of growth from each cane using floral snips. Remove the tips of the canes right above a set of large, mature leaves. Make the cut no more than 1/4 inch above the branching leaves.