How to Grow Scabiosa

Scabiosa

Scabiosa atropurpurea, Scabiosa stellata

Details

Plant type: annual
Planting season: early spring, fall
Site: sun
Seed depth: 1/16" or surface sow
Days to germination: 10-12 days at 65-70°F (18-21°C)
Days to maturity: 90-100
Plant spacing: 9-15"
Height: up to 36"
Pinch: when plants are 8" tall

Growing Notes

Transplant (recommended) - Sow 4-6 weeks before planting out. Barely cover as light aids germination. Transplant to larger containers when the first true leaves appear. In the greenhouse, grow transplants at 50-55°F (10-13°C) to keep the plants from stretching. Harden off and transplant outside after the last frost.

Direct seed - Successive plantings every 2-3 weeks until late spring give the best quality flowers and pods. May require support.

Harvest

Scabiosa atropurpurea: Flowers almost fully open.

Scabiosa stellata: Fresh-cut or dried: Harvest when seed heads are light green with dark-bronze edges and the star-shaped centers are just turning black. If harvested after the centers have fully turned, or begun to fall out, the seed head will shatter and will not be useful.

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