Streptocarpus Harlequin Lace (Cape Primrose)

Popular as a houseplant, Streptocarpus ‘Harlequin Lace’ (Cape Primrose) is a compact, evergreen perennial with small, velvety, wrinkled, strappy leaves and large magnificent flowers produced over several months.

Popular as a houseplant, Streptocarpus 'Harlequin Lace' (Cape Primrose) is a compact, evergreen perennial with small, velvety, wrinkled, strappy leaves and large magnificent flowers produced over several months. Borne on short upright stems, the delicate blossoms feature baby-blue upper lobes and violet-blue lace patterns over a yellow background on their lower three lobes. Use Cape Primrose as a flowering indoor plant or in containers on a shaded deck or patio.

  • Recipient of the prestigious Award of Garden Merit of the Royal Horticultural Society.
  • Grows up to 12-18 in. tall and wide (30-45 cm)
  • Performs best in bright filtered light with shade from hot sun in fertile, moist, humus-rich well-drained soil. Water freely allowing the soil to dry out between waterings. Feed fortnightly with a high-potassium fertilizer.
  • Keep an eye out for glasshouse leafhoppers, mealybugs, thrips, vine weevil and tarsonemid mite. Overwatering may cause rotting at the base of the plant.
  • Deadhead regularly and remove damaged leaves. Mature plants should be cut back after flowering. The plant will remain dormant for up to three months after pruning. Cut back on watering and do not fertilize during this period.
  • Propagate by division of clumps or by leaf cuttings in spring or summer.

Requirements

Hardiness 10
– 11

Heat Zones 10
– 12

Plant Type Perennials
Plant Family Streptocarpus – Cape Primroses
Exposure Partial Sun, Shade
Season of Interest Spring (Early,Mid,Late)Summer (Early,Mid,Late)FallWinter
Height 1'
– 2'
(30cm
– 60cm)
Spread 1'
– 2'
(30cm
– 60cm)
Water Needs Average
Maintenance Average
Soil Type Loam
Soil pH Acid, Alkaline, Neutral
Soil Drainage Well-Drained
Characteristics Plant of Merit, Showy, Evergreen
Garden Uses Patio and Containers