Perennial, Zones 3-7. Intense dark purple with black bees. Stately and breathtaking. Magnificent dense racemes make delphinium excellent in the border and as a cutflower. 6'. Part of the Pacific Giants series, developed in California in the ’40s.
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| Variety | Product Type | Hybrid Status | Bloom Color | Lifecycle | Hardy to Zone | Maximum Hardiness Zone |
|---|---|---|---|---|---|---|
| Astolat Pacific Giant | seeds | open pollinated | multi-colored | perennial | 3 | |
| Black Knight Pacific Giant | seeds | open pollinated | dark purple | perennial | 3 | 7 |
| ‘Dasante Blue’ | plants | brilliant blue | perennial | 3 |
~450 seeds/g.
Perennial to Zone 3. Magnificent dense racemes make delphinium excellent in the border and as a cutflower. The name comes from the Greek for ‘dolphin’ and refers to the shape of the spur containing the nectar. Large raceme with many flowers. All parts of the plant are toxic if ingested, and can cause skin irritation.
Culture: Old seed goes dormant and is very hard to reawaken so order fresh seed each year. Prechill seed for 2–4 weeks, then germinate at 65–75° and grow on at 50–60°. Likes sun, moist rich soil, can tolerate some shade. Heavy feeder; sidedress in spring with well-composted manure. Harvest when one quarter of the flowers are open.
For the latest results of our germination tests, please see the germination page.
All of our seeds are non-GMO, and free of neonicotinoids and fungicides. Fedco is one of the original companies to sign the Safe Seed Pledge.
From early May through mid-December, items shipping from our garden seeds warehouse ship twice a week, usually Tuesday and Thursday. For quickest turnaround time order online by noon Monday or Wednesday.