Clarkia - Key Growing Information
DAYS TO GERMINATION: 5-10 days at 65-70°F (18-21°C)
SOWING: Transplant (recommended) - Sow 3-4 weeks before last frost. Lightly cover seeds with 1/16" soil. Harden off seedlings before planting out after last frost. Direct seed - As soon as the soil can be worked. Gently press seeds into soil, covering with 1/16" soil. Keep soil surface moist until emergence. Thin to 6-12" once seedlings have first true leaves.
LIGHT PREFERENCE: Sun/Part Shade.
PLANT HEIGHT: 24-40".
PLANT SPACING: 6-12".
HARDINESS ZONES: Annual.
STEM LENGTH: 12-34".
VASE LIFE: 7-10 days.
HARVEST: Harvesting stems when the lower set of blooms is just beginning to open. Older blooms will drop off the stem within about 5 days. Unopened buds on the stem will continue to open up in the vase.
SOIL REQUIREMENTS: Average, well drained soil.
USES: Cut flowers, pollinator gardens, and border plant.
TIPS: Plants may benefit from a horizontal trellis / support.
SCIENTIFIC NAME: Clarkia unguiculata