Delphinium (Delphinium halteratum)
Care, watering, light and tips for Delphinium on Floravia.
Quick facts
- Family: Ranunculaceae
- Difficulty: Demanding
- Watering: every 7 days
- Light: Partial shade
- Temperature: 10–30 °C
- Toxicity: Toxic to pets
About Delphinium
Delphinium halteratum, commonly known as Long-stalked Delphinium, is a charming perennial herbaceous plant belonging to the Ranunculaceae family. It is characterized by its slender stems bearing loose inflorescences of blue or violet flowers, often with a distinctive spur. It is ideal for adding a touch of color and vertical interest to mixed borders, wild gardens, or as a cut flower in floral arrangements.
Native range
Iberian Peninsula and Northwest Africa
Care tips
It prefers full sun exposure or light partial shade and well-drained, organically rich soils. Keep the substrate consistently moist, especially during dry periods, but avoid waterlogging which can lead to root rot. A common mistake is not providing support for the tall stems, which can cause them to fall over in wind or rain. Applying a balanced fertilizer in early spring is beneficial.
How to save a dying Delphinium
- Warning signs
- Wilted or yellowing leaves, soft stems, poor or no flowering, rot at the base.
- First aid
- Remove spent flowers, check drainage, reduce watering if waterlogged, move to partial shade.
- What kills it
- Overwatering (root rot), intense direct sun and excessive heat, lack of deadheading.
- Can it be saved?
- Yes, if roots aren't fully rotted and action is taken quickly. Requires consistent care.