Summer Carnival Hollyhock
This biennial was the All-America Winner for 1972. The plants have beautiful 4-5" double blooms with a superb color range and will bloom the first year if started indoors. Grows to about 4 1/2 feet, so it may require some support. While technically a biennial, this one comes back year after year in our experience.
Biennial, zone 4-8
Germination: 10-21 days
Germination Temperature: Optimum soil temperatures 60-70ºF
Seed Planting Depth: Sow on the surface and lightly cover, seeds need some light to germinate
Starting Indoors: Start indoors 6-8 weeks before the last frost. Provide 60-70ºF soil temperature. Transplant after last frost, 18-24” apart
Sowing Outdoors: Direct sow after the last frost and in the fall
Growth Habit: Columnar
Height and Width: 48-60" by 12-18"
Spacing: 12-24" apart
Light Needs: Full sun to part shade
Soil Needs: Fertile, moist, well-drained
Approximate days to flower from seed: Blooms in the second season
Uses: Cut flowers, back border of the flower garden, cottage gardens, attracts pollinators
Care: Water seedlings regularly until established. Amend soil with compost before transplanting. Cut back stems as the blooms fade, this encourages more flower production. Leave some seed pods on the plant of you would like it to self-seed.