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Delphinium Seeds - Black Knight
SEASON
Perennial
USDA ZONES
3 - 8
HEIGHT
70 inches
BLOOM SEASON
Summer
BLOOM COLOR
Dark violet
ENVIRONMENT
Full sun
SOIL TYPE
Rich, well-drained, pH 6.6 - 7.5
DEER RESISTANT
Yes
HOUSE PLANT
No
About...
Delphinium (Delphinium Cultorum Black Knight) - Sow Delphinium seeds to produce this gorgeous addition to the perennial flower garden. Hummingbirds and bees will visit often! Black Knight is a large perennial from the Pacific Giant Hybrids. It may require staking while flowering especially in windy areas as this plant can grow up to 6 feet tall.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 Black Knight) - Black Knight is a large perennial from the Pacific Giant Hybrids. It may require staking while flowering especially in windy areas as this plant can grow up to 6 feet tall. It has tall spikes of flowers in a gorgeous shade of dark violet-blue with a black bee in the center. Sow Delphinium seeds to produce this gorgeous addition to the perennial flower garden. Hummingbirds and bees will visit often!
Grow the plants in full sun and in compost rich well drained soil. Delphinium care includes applying a balanced liquid fertilizer every month as the plants are heavy feeders. Plants should be replaced every 3 to 4 years as they will become woody and begin to decline with age. Cut plants back after initial flowering for a possible second showing in fall. The flowers are excellent for cutting. This flower seed produces Delphiniums that will grow at elevations up to 10,000 feet which is very rare.
To get a jump start on the growing season, sow Pacific Giants Delphinium 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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