Genus guide
Delphinium — 11 species
Part of the Buttercup & clematis family family (Ranunculaceae)
Delphiniums are bold, cottage-garden perennials and biennials prized for their towering spikes of blue, purple, white, or red flowers — exemplified by Candle larkspur, Siberian larkspur, and the rich-scarlet Red larkspur. They thrive in full sun with at least six hours of direct light daily and prefer consistently moist, fertile, well-drained soil; water at the base to protect foliage. All Delphinium species are toxic to cats and dogs: the alkaloids they contain cause muscle weakness, tremors, excessive salivation, and, in serious cases, respiratory failure. Keep these plants well out of reach of pets.
All Delphinium species we cover
- Belladonna larkspur
- Candle larkspur
- Candle Larkspur 'Guardian Blue'
- Delphinium 'Black Knight'
- Delphinium 'Galahad'
- Delphinium 'Magic Fountains'
- Delphinium 'Pacific Giant'
- Delphinium grandiflorum 'Blue Butterfly'
- Red larkspur
- Siberian larkspur
- Summer Skies delphinium
Delphinium — frequently asked questions
Are Delphinium plants toxic to cats and dogs?
Most Delphinium are not pet-safe. Of the 11 Delphinium species in the Growli library, 11 (100%) carry a toxic or mildly-toxic ASPCA classification and 0 are pet-safe. Always confirm the exact species on its pet-safety page before trusting it around cats or dogs.
How much light do Delphinium plants need?
Most Delphinium do best in direct sun. If yours stretches toward the window or loses its variegation it wants more light; scorched or bleached leaves mean it is getting too much direct sun.
Are Delphinium easy to care for?
Some Delphinium suit more experienced growers — several want strong light, sharp drainage or a specific seasonal rhythm. Check the individual species page for the exact regime.
How many Delphinium varieties are there?
Growli's care library covers 11 Delphinium species and varieties — browse them all above. They share a similar light, water and soil pattern, so once you learn one Delphinium, the rest follow closely.
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