Dahlia (Dahlia pinnata)
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
Dahlia pinnata, commonly known as dahlia, is a stunning perennial tuberous plant belonging to the Asteraceae family, native to Mexico. Its flowers, which vary enormously in shape, size, and color, from simple to double and multi-petaled, make it a spectacular choice for beds, borders, or as a cut flower in temperate climate gardens. They bring a vibrant burst of color and classic elegance to any outdoor space.
Native range
Mexico and Central America
Care tips
For optimal growth, dahlias require full sun (at least 6-8 hours daily) and well-drained soil rich in organic matter. Watering should be regular and deep, especially during dry periods and flowering, avoiding waterlogging which can rot the tubers. A common mistake is planting them in excessive shade or heavy, clayey soils; this will result in sparse blooms and a higher risk of diseases. It is recommended to dig up the tubers in areas with cold winters to protect them from frost.
How to save a dying Dahlia
- Warning signs
- Yellowing or wilting leaves (underwatering), soft stems (overwatering).
- First aid
- Check soil moisture. If dry, water deeply. If wet, stop watering, improve drainage.
- What kills it
- Overwatering (tuber rot) or prolonged underwatering (dehydration).
- Can it be saved?
- Yes, if the tuber isn't rotten or completely dry. Act quickly.