Delphinium Seeds - King Arthur
USDA Zones: 3 - 8
Height: 70 inches
Bloom Season: Summer
Bloom Color: Royal violet
Environment: Full sun
Soil Type: Rich, well-drained, pH 6.6 - 7.5
Deer Resistant: Yes
Average Germ Time: 14 - 28 days
Light Required: No
Depth: 1/8 - 1/4 inch
Sowing Rate: 2 - 3 seeds per plant
Moisture: Keep seed moist until germination
Plant Spacing: 30 inches
Care & Maintenance: Delphinium
Delphinium (Delphinium Cultorum King Arthur) - Make a statement in the flower garden with a mass planting of these tall flowers grown from Pacific Giants Delphinium seeds. They will be the stars of the early summer perennial garden. King Arthur bears rich, deep royal-violet petals marked with a white "bee" at the center of each flower. The Pacific Giant Hybrids are the tallest and showiest of all Delphiniums, with spikes that can reach heights of 6 feet. They are a short-lived plant, and usually grown as an annual or a biennial, but will grow as a perennial in certain climates. These flowers are in a distinct class noted for their tall, stately appearance and true blue colored flowers, a hue that is relatively rare in the perennial world.
If the main flower stalk is removed just after flowering, the plant will likely produce secondary blooms in late summer or early fall. Delphinium Cultorum care includes applying a balanced liquid fertilizer every month as the plants are heavy feeders. Also, because of this plant's potential height and hollow stems, plant in an area that is sheltered from high winds, or stake the plant to avoid them falling over or breaking.
To get a jump start on the growing season, sow Delphinium flower seeds indoors 4 - 6 weeks before last frost. Use sterile starter mix in trays and cover flower seeds 1/8 - 1/4 inches.