Saponaria (P)
Saponaria ocymoides
Perennial. Hardy in zones 3-8.
Start inside 8 weeks before planting out. Do not cover seed, provide light and warmth of 21°C (707°F). Should germinate in 2-3 weeks. May also be direct seeded into the garden in early spring or early autumn. Transplant in early spring into a full sun or light shade location, 12 inches apart. May become invasive in rich, moist soil, but is easier to control in dry, rocky soil. Cut back after blooming to encourage reblooming. May be divided in early spring after 3-4 years. Do not overfeed.
