Black dahlia (Dahlia atropurpurea)
Care, watering, light and tips for Black dahlia on Floravia.
Quick facts
- Family: Asteraceae
- Difficulty: Moderate care
- Watering: every 3 days
- Light: Full sun
- Temperature: 0–35 °C
- Toxicity: Toxic to pets
About Black dahlia
Dahlia atropurpurea, known as the Guerrero Dahlia, is a Dahlia species native to Mexico, prized for its vibrant dark purple to almost black flowers. Its large, velvety blooms, often with yellow centers, make it a spectacular focal point in flower gardens, borders, and floral arrangements. It is ideal for adding a dramatic and exotic touch to any outdoor space.
Native range
Mexico
Care tips
It requires full sun (at least 6 hours daily) for optimal blooming. Watering should be regular and deep, keeping the substrate moist but not waterlogged, especially during flowering periods. It prefers rich, well-drained, and slightly acidic soils. A common mistake is planting the tubers too early in spring, before the risk of frost has passed, which can damage them.
How to save a dying Black dahlia
- Warning signs
- Yellowing or wilting leaves, soft or blackened stems. May indicate rot or lack of water.
- First aid
- Check soil moisture. If waterlogged, remove from pot, clear soil and rotten roots. If dry, water thoroughly.
- What kills it
- Overwatering, which rots the tubers. Also intense cold or late frosts.
- Can it be saved?
- Yes, if you act quickly. If tubers are not completely soft, there is hope.