Is Delphinium grandiflorum a perennial?

Is Delphinium grandiflorum a perennial?

Delphinium grandiflorum ‘Summer Nights’ is a low-growing, short-lived perennial with loose sprays of single, spurred, satiny midnight blue flowers. Blooming for weeks from early to late summer, this dwarf Delphinium forms a compact, bushy mound of well-branched, lacy green leaves.

Does delphinium come back year after year?

“By planting them in the early spring, they usually bloom the first year. Because they are so quick to bloom, many people treat them as annuals, buying new plants every year. They are actually a short-lived perennial and prefer short, cool summers to long, hot periods.

How do you care for a Delphinium grandiflorum?

Delphinium grandiflorum ‘Summer Blues’ Water Requirements: Requires regular watering, do not allow the soil to dry out. Soil Requirements: Organically rich well drained soil with a neutral pH or slightly alkaline. Growth Habit: Mounded foliage with an open habit.

Is blue delphinium a perennial?

Delphinium is a perennial favorite as the tall spikes of blue flowers in the background of a stately English or cottage garden. The modern delphinium flower may be a single or double rosette in popular blue or red, pink, white, violet and yellow.

Do delphiniums tolerate heat?

It’s heat-tolerant and produces tall stalks of delicate, widely spaced white flowers that bloom from spring into summer. Also known as bouquet delphinium or Siberian larkspur, this heat-tolerant species produces large, deep blue flowers that grow in bushy masses of loose, asymmetrical formations.

Is there a dwarf delphinium?

A perennial for cool climates with deep blue flowers, Summer Nights Dwarf Delphinium (Delphinium grandiflorum) will bloom all summer. The flowers rise on stalks above the lacy foliage, but this dwarf variety is shorter than most delphinium varieties, reaching about 10 to 12 inches high.

Is it too late to plant delphinium?

You can plant a delphinium at any of time of year, but spring or autumn is best as the soil will be warm and moist. Dig a planting hole and add compost or well-rotted manure in the bottom, for a nutritious boost.

Are delphiniums cold hardy?

While delphiniums are cold hardy to USDA Zone 3, where temperatures can get down to -30°F, they need a bit of help to ensure that they survive a cold and frosty winter. In mid- to late fall, grab some organic mulch from your local gardening store.

Does delphinium need full sun?

Delphinium plants require 6 to 8 hours of sun a day, and gentle morning and early afternoon sun is preferred. The roots need cool, moist shade.

Will delphiniums grow in pots?

Sow in small pots or seed trays and keep at a temperature of around 50°-60°F. The best method of propagating delphiniums is to take cuttings from the base of the plant (basal cuttings) in spring.