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Delphinium Seeds - Summer Skies
About...
Delphinium (Delphinium Cultorum Summer Skies) - For these lovely, impressive perennials, grow Delphinium seeds! Summer Skies is marked by immense, graceful, light to medium blue flower spikes with white 'bees'.MORE DELPHINIUM OPTIONS
Flower Specifications
SEASON
Perennial
USDA ZONES
3 - 8
HEIGHT
70 inches
BLOOM SEASON
Summer
BLOOM COLOR
Light blue
ENVIRONMENT
Full sun
SOIL TYPE
Rich, well-drained, pH 6.6 - 7.5
DEER RESISTANT
Yes
HOUSE PLANT
No
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
Delightful Garden Flower
Summer Skies is a delphinium variety that grows dense and tall! True to its name, this plant blooms all summer long.
Unique Cut Flower
How To Grow
Sow these seeds indoors 4-6 weeks before the last expected frost. Plant at a depth of 1/4 inch, and keep seeds moist until germination. Seedlings can be transplanted outdoors after frost danger has passed. These seeds can also be sown directly outdoors anywhere from spring through fall, although they will bloom much later than if planted indoors. Plant after frost danger has passed. Delphinium plants are heavy feeders, so make sure to apply a balanced liquid fertilizer every month. Plants should be spaced approximately 30 inches apart for best performance.
- Environment: full sun
- Soil: well-drained with pH 6.6-7.5
- Sowing rate: 2-3 seeds per plant
Plant Information
Summer Skies is a delphinium variety that can reach up to 70 inches tall. It is an annual that grows in USDA zones 3 through 8, and is especially effective at attractive hummingbirds and butterflies to the garden.
- Bloom season: summer
- Bloom color: light blue
- Plant spacing: 30 inches
- Deer resistant: yes
Delphinium (Delphinium Cultorum Summer Skies) - For these lovely, impressive perennials, grow Delphinium seeds! Summer Skies is marked by immense, graceful, light to medium blue flower spikes with white 'bees'. If the flower seeds are sown in early spring, Summer Skies will bloom the first year putting on a mid-summer show of color. This hybrid is from the Delphinium Pacific Giants series and it can reach a height of 6 feet. These tall beauties create a wonderful back border for the perennial flower garden, or plant them in a mass in the center of an island garden.
Delphinium grow best in full sun; however, in hotter zones they may be planted in bright shade areas that still receive some direct sunlight during the day. They thrive in rich, deeply worked soil that drains well. Prefers cool, moist summer nights. Space plants approximately 30 inches apart for optimum performance. Grows well in zones 3 - 7, but in hotter zones you may need to treat as hardy annual. Delphinium Cultorum care includes applying a balanced liquid fertilizer every month as the plants are heavy feeders.
To get a jump start on the growing season, sow Delphinium seeds indoors 4 - 6 weeks before last frost. Use sterile starter mix in trays and cover flower seeds 1/8 - 1/4 inches.