Alcea rosea 'Chater's Double Group Salmon Pink', commonly known as Double Salmon Pink Hollyhock, is a classic biennial or short-lived perennial flower originating from Asia and Europe. The seeds are relatively easy to germinate when given warm, moist conditions (60-70°F) and light exposure, typically sprouting within 7-21 days. Optional pre-treatment with warm water soaking improves germination rates significantly, especially for older seeds.
Before sowing
Water treatment significantly improves germination rate for Alcea rosea. May be soaked in warm water or subjected to mechanical scarification. Optional but recommended, especially for older seeds
Sowing
What to expect
Tips
Sow seeds indoors 6-8 weeks before the last frost date, or direct sow outdoors 1-2 weeks before last frost. Seeds require light and should be pressed lightly into moist soil without covering. Maintain consistent soil moisture and provide bright indirect light after germination. Transfer seedlings to individual deep pots when 2-3 inches tall to accommodate long taproots. Harden off seedlings gradually before transplanting outdoors. These double-flowering Chater's varieties are true biennials, typically blooming in their second year. Pre-soaking seeds in warm water (113°F/45°C) for 12 hours can significantly speed and improve germination. Space transplants 18-24 inches apart in well-drained soil with full sun exposure.
Sources: Outside Pride, Select Seeds, Sarah Raven, Epic Gardening, West Coast Seeds, Fontana Seeds, Planet Natural, Sow Right Seeds, Royal Horticultural Society
