Delphinium

Description

Delphinium is a perennial flower that is part of the buttercup family. The name “delphinium” comes from the Greek word “delphis,” which means dolphin, and refers to the flower’s unique shape that resembles a dolphin. Delphiniums come in a variety of colors, including blue, purple, pink, white, and red. These flowers are known for their tall spikes and are often used as cut flowers in bouquets.

Taxonomic Information

Appearance

Delphiniums are known for their tall spikes that can grow up to six feet tall. The flowers themselves are small and clustered together on the spike. The petals are often shaped like a spur and tend to be blue or purple, although other colors are available. The leaves are deeply lobed and can be up to eight inches long. Delphiniums bloom in the summer and can be used as cut flowers in bouquets.

Care Guide

Delphiniums require full sun to partial shade and well-drained soil. They should be watered regularly, but not overwatered, as they can be susceptible to root rot. Fertilizer can be applied in the spring, and deadheading should be done regularly to encourage more blooms. Delphiniums are hardy in zones 3-7.

Common Pests & Diseases

Delphiniums can be susceptible to a variety of pests and diseases. Common pests include aphids and spider mites, while common diseases include powdery mildew and crown rot. To prevent these issues, it is important to maintain good garden hygiene and to remove any infected plants or plant parts immediately.

Habitat

Delphiniums are native to Europe and Asia but are commonly grown in gardens throughout the world. They prefer cooler climates and can be found growing wild in mountain meadows and other open areas. Delphiniums are often used in cottage gardens and can add a touch of elegance to any landscape.

Question and Answer

Q: Can delphiniums grow in hot climates?
A: While delphiniums prefer cooler climates, they can still be grown in hotter regions if they are provided with partial shade and plenty of water.

Q: How often should I fertilize my delphiniums?
A: Delphiniums should be fertilized once in the spring with a balanced fertilizer.

Q: How often should I deadhead my delphiniums?
A: Deadheading should be done regularly throughout the growing season to encourage more blooms.

Q: Can delphiniums be grown in containers?
A: Yes, delphiniums can be grown in containers as long as they are large enough and have good drainage.

Related Plants

• Larkspur (Consolida)
• Monkshood (Aconitum)
• Columbine (Aquilegia)
• Buttercup (Ranunculus)

References

• “Delphinium.” Missouri Botanical Garden, www.missouribotanicalgarden.org/PlantFinder/PlantFinderDetails.aspx?taxonid=245424&isprofile=0&basic=delphinium. Accessed 23 May 2021.
• “Delphinium.” The Old Farmer’s Almanac, www.almanac.com/plant/delphiniums. Accessed 23 May 2021.
• “Delphinium.” Royal Horticultural Society, www.rhs.org.uk/plants/6251/i-delphinium-i/details. Accessed 23 May 2021.