A versatile series of rex begonias, Shadow King will perform well in shady areas as well as indoors. Three striking colors are available: Moonlight, Rothko and Strawberry Lime.
Water thoroughly and allow soil to dry between irrigations. Plants should not wilt, but do not keep consistently wet or root rot problems may develop. The first signal of damp conditions would be yellowing of foliage and weak growth. The pH of the soil should be maintained at 5.8 to 6.2.
Feed with a balanced fertilizer at 100- to 150-ppm nitrogen. Soil EC should be maintained between 0.8 to 1.2 in a soilless mix. A clear water irrigation may be necessary to keep salts lower to ensure quality plant growth.
PGRs should not be necessary. Proper soil moisture is the best way to control growth.