First year flowering perennial. Well-branched plants produce spikes in dark blue, turquoise, or white. Often grown as an annual. Zones 3-7. Ht. 40-60". Avg. 10,000 seeds/oz. Packet: 50 seeds.
Latin Name: Delphinium x belladonna
Days to Maturity or Bloom:
Shipping Information & Notes
CAUTION: All parts of this plant are poisonous, including the seeds. Exercise extreme caution around children and pets. The purchaser assumes all liabilities relating to the use of this product.
DAYS TO GERMINATION: 10-20 days at 65-70°F (18-21°C).
SOWING: Transplant (recommended): Sow 10-16 weeks before the last frost. Cover seed lightly. Transplant into packs or 3-4" pots 6-8 weeks after germination. Grow seedlings at 50-55°F (18-21°C) in the greenhouse or cold frames. Harden off and transplant outside after the last frost. Overhead irrigation is not advised. If growing in the greenhouse, transplant plugs into raised bed in August. Provide netting 12-18" above the beds. Keep temperatures below 60°F (16°C). After the first cut, strip the lower leaves to encourage branching. Feed with a balanced fertilizer. Cuts are typically ready for sale in January. Direct seeding is not recommended.
LIGHT PREFERENCE: Sun/Part Shade.
SOIL REQUIREMENTS: Well-drained, fertile, slightly alkaline soil with plenty of organic matter. Fertilize lightly but frequently with a balanced fertilizer.
PLANT HEIGHT: Varies. Providing support is strongly advised.
PLANT SPACING: 12-18" if being grown as a perennial. 12" apart if being grown as an annual.
HARDINESS ZONES: Zones 3-7. A short-lived perennial, generally only lasting 3 seasons.
HARVEST: Harvest when 1/4 to 1/3 of flowers on stem are open. Place immediately in water. Blooms again in late summer and early fall if cut back immediately after the first bloom.
USES: Excellent cut flower. Well suited to perennial beds and borders.