Also called larkspur, delphinium describes a group of plants that produce some of the boldest blooms of summer. The genus includes over 300 species; Delphinium elatum is most easily recognized. Flowering all summer, delphiniums are butterfly and hummingbird magnets, too!

Understanding the Context

Learn how to plant, grow, and care for delphiniums. Delphinium is a genus in the Ranunculaceae family. (They’re often confused with larkspur, which are a different plant species.) These elegant plants also add a strong vertical element to cut flower bouquets. This guide covers what you need to know to grow delphiniums in your own garden.

Key Insights

Delphinium plants and seeds are toxic. 1 Plant them in a location away from children and pets. Delphinium ... Delphinium is a genus of about 300 species of annual and perennial flowering plants in the family Ranunculaceae, native throughout the Northern Hemisphere and also on the high mountains of tropical Africa. Find out how to care for beautiful delphinium flowers in your garden with advice from HGTV garden experts on planting, staking, growing and caring for delphinium plants.

Final Thoughts

Delphiniums can be high-maintenance, needing just the right conditions. They prefer cool, mild summers with low humidity. Plant them in a spot with adequate moisture and well-draining soil. Thankfully, new strains of hybrids are being developed that aren’t as fussy. Delphiniums (Delphinium) are towering columns of bright blooms that can reliably add a dose of drama to any landscape. They're often found in classic English cottage gardens, and their distinctive blooms are great additions to cutting gardens across the U.S.

as well. Delphinium is a huge category of upright, flowering plants that bring all the pollinators to the yard. Our in-depth guide shares our tips.