Dahlia (Dahlia cultorum)
Care, watering, light and tips for 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 Dahlia
The cultivated Dahlia (Dahlia cultorum) is a genus of herbaceous tuberous plants renowned for their showy and diverse blooms. Their flowers, which can be single, double, or pompon-shaped, display an astonishing array of colors and forms, making them a focal point in flowerbeds, borders, and containers. They are perfect for adding a dramatic and colorful touch to any garden or balcony.
Native range
Mexico and Central America
Care tips
Dahlias require full sun for abundant flowering and well-drained soil rich in organic matter. Keep the substrate consistently moist, but avoid waterlogging to prevent tuber rot. A common mistake is planting them too early in spring, before the risk of frost has passed, which can damage or kill the cold-sensitive tubers.
How to save a dying Dahlia
- Warning signs
- Yellowing/browning leaves, soft stems, poor or no flowering, general wilting.
- First aid
- Check drainage, prune damaged parts, repot if needed, adjust watering and sun exposure.
- What kills it
- Overwatering leading to tuber rot or lack of sun, causing weakness and disease.
- Can it be saved?
- Yes, if you act quickly. Dahlias are resilient if conditions are corrected.