The genus Plumbago is made up of annuals, perenials, evergreen shrubs, and climbers native to warm temperate and tropical regions worldwide. They are grown for their racemes of pretty white, red, or blue tubular flowers. Grow in a cool greenhouse, in containers, or in a border outdoors. Climbing species can be trained over an arch or pergola.
Noteworthy CharacteristicsShowy flowers.
CareIn the garden, plumbago needs fertile, well-drained soil in full sun. Provide support for the stems and protect from strong winds. Indoors, grow in full light and water freely during the growing season.
PropagationSow seed at 55° to 64°F in spring, or root semi-ripe cuttings in mid-summer with bottom heat. Some species may be propagated from softwood cuttings.
ProblemsGenerally problem-free outdoors, but spider mites, white flies, and mealybugs may be a problem under glass.