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‘Cobalt Dreams’ Delphinium

plants
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$26.00
Item: 7737-A
stock details: plugs
Delphinium

4-6' tall. 

Brilliant vivid blue flowers with highly contrasted, distinct white centers (“bees”) are densely packed along terminal spikes above palmate glossy green foliage. There’s a reason delphies never go out of style—the blooms seem to flicker with ultraviolet light if you stare at them in their summer glory, yet for all their intensity, they lend an old-time elegance to the garden. They make great cutflowers, but leave some standing for the butterflies. 

Full sun to part shade. Prefers well-drained but evenly moist soils. Mulch in hot or dry seasons. Midsummer blooms. Zone 3.

NEW!
ships in spring
Additional Information

Delphinium

~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.

Herbaceous Perennial Plants

When you receive your order, open the bags and check the stock immediately. Roots and crowns should be firm and pliable. Surface mold is harmless and will not affect the plant’s future performance. Store plants in their packaging in a cool (35–40°) location until you are ready to plant. If it’s going to be awhile, you can pot up your perennials.

Do not plant bare-root perennial plant crowns directly outdoors before danger of frost has passed. Wet and/or cold conditions for an extended period may cause rotting.

For more info:
About planting bare-root perennials

Shipping

Items from our perennial plants warehouse ship from early March through mid-to-late May, weather depending, beginning with warmer USDA zones.