The Cape plumbago is a shrub that can grow as large as 6 feet tall and 10 feet wide. Its care includes pruning before the growing season and fertilization during it. You'll need a pair of bypass pruners and some 10-10-10 fertilizer. The pruning will take between 1 and 2 hours.Continue Reading
Perform routine pruning by removing dead, diseased and discolored stems with clean, sharp bypass pruners. Cut away branches that rub and any that overlap. Choose older branches that will be hidden by flowering stems, and cut them back by 6 to 10 inches to thin out the bush.
Cape plumbago does not require fertilization but responds well to it when it is done at the beginning and near the end of its season. Moisten the soil, and apply a 10-10-10 fertilizer according to package directions. Afterward, give the plant a good soaking to evenly distribute the food.
Plant your plumbago in full sun with well-draining soil for the most blooms. Water new plants deeply to encourage root formation, and allow the soil to dry out between watering to discourage root rot.