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Delphinium Seeds - King Arthur
SEASON
Perennial
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
HOUSE PLANT
No
About...
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.MORE DELPHINIUM OPTIONS
Planting Directions
TEMPERATURE
55F
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
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.
Common Questions
Do Delphinium come back every year?
Numerous species and varieties of delphiniums bred for home gardens are short-lived perennials that can reappear for around five years. On the other hand, annual species include native larkspur, which are typically shorter in height, feature smaller flowers, and have fern-like foliage.
Where should I plant delphiniums?
It is advisable to place delphiniums in a location that receives 6-8 hours of sunlight daily, with shaded afternoons and well-drained, slightly acidic soil. Ensure proper air circulation by planting them at a sufficient distance from each other.
What is the difference between larkspur and Delphinium?
Larkspur is a frequently used name for delphiniums, although it can also denote plants in another genus. Typically, larkspurs are annuals, whereas delphiniums are perennials. You can distinguish between the two plants by noting variations in foliage and flower size, with delphiniums having larger flowers.
Can I grow delphinium in a container?
Smaller varieties can work in containers but the larger plants will not bloom in containers.
How can I use delphinium in my garden?
Perfect for the back of the border, for a cottage garden, as a hedge, against the house, and for cutting.
Will I get a second bloom on my delphinium?
If your first bloom was early and you cut the flower stalk back after blooming, you may get a second bloom.
How late in the fall can I plant my delphinium?
Plant with at least six weeks before the ground freezes for the best root growth.
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