1/4-1/2" Tip: Nick or file the seed coat and soak seeds in warm water for 8 hours prior to sowing.
Seed To Bloom:
Sow in pots about 4 weeks before planting out after last frost. Keep at 65-80°F.
Direct sow 2 weeks after last spring frost, when soil has warmed.
WHEN TO SET OUTSIDE
After last frost, when soil has warmed.
PLACEMENT & CULTIVATION
Cardinal climber has lipstick red flowers and deeply divided lacy leaves on twining stems that twist around fine trellis work, adding vertical interest to borders and containers. Easy to grow, with little care needed, no deadheading, little fertilizer, just regular water during dry seasons.
About 1" per week, more during especially dry, hot spells.
Slightly acidic to slightly alkaline.
Mix in 2" of compost prior to planting and apply a flower fertilizer at bud set for more abundant blooming. Avoid nitrogen fertilizers that favor foliage growth over flower development.
Diseases & Pests:
No major problems. Prevent fungal issues with proper spacing and placing in a location with decent air circulation.