Coleus forsteri 'Marginatus'

Coleus forsteri 'Marginatus' is a variegated cultivar of a species that is native to the Southwest Pacific including Fiji and New Caledonia and is a member of the mint family (Lamiaceae). It is an attractive erect and spreading, herbaceous perennial that is known for its attractive variegated leaves that emit a mild citrus fragrance when bruised. In North Carolina, it is typically grown as a houseplant or annual bedding plant.

'Marginatus' prefers partial shade or dappled sunlight and dry to moist, well-drained, rich humus soil. As a houseplant, it should be placed in area with bright indirect light. It is hardy in USDA Zones 10 to 11 and is frost intolerant. Once established, it is drought and dry soils tolerant. It is best to avoid poorly drained clay soils. Pinching the stems will help keep its size compact.  This plant can be propagated by stem cuttings in the spring or fall.

This cultivar grows from 6 inches to 1 foot tall and spreads up to 3 feet. The leaves are bright green with creamy white edges and are round with scalloped margins. Its stems are reddish and erect, but they will begin to trail with age. Flowers appear during the summer months of June to July and are pale pink to white, tubular, and two-lipped. They are borne on 6 inch long racemes.

As a houseplant, 'Marginatus' is attractive as a container planting or hanging basket. In warm climates, this plant could be grown as a perennial border or foundation planting. 

Insects, Diseases, and Other Plant Problems: No serious insect pests or disease problems. Monitor for mealybugs, scale, and mites. These plants can become aggressive in the garden in frost-free areas. Since the stems are easily broken, it is best to have the houseplant in a protected location.