Dahlia australis
Care, watering, light and tips for Dahlia australis 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 australis
Dahlia australis, commonly known as the Southern Dahlia, is a dahlia species native to Mexico and Central America. It is characterized by its medium to large-sized flowers, which can vary in color from white to pink, red, or purple, often with a yellow center. This plant is ideal for flower beds, borders, or as a cut flower, bringing a vibrant and exotic touch to the garden.
Native range
Mexico and Central America
Care tips
The Southern Dahlia prefers full sun exposure for abundant flowering, although it tolerates some partial shade in very hot climates. It needs regular and deep watering, especially during dry and flowering periods, ensuring the substrate remains moist but not waterlogged. The ideal substrate is rich in organic matter, well-drained, and slightly acidic. A common mistake to avoid is overwatering, which can lead to tuber rot; it is preferable to allow the top layer of the substrate to dry out slightly between waterings.
How to save a dying Dahlia australis
- Warning signs
- Yellowish or wilted leaves, soft stems, no blooms, or weak shoots.
- First aid
- Check watering, ensure good drainage, and place in bright, indirect light.
- What kills it
- Overwatering leading to tuber rot, or insufficient light.
- Can it be saved?
- Yes, if you act quickly; the tuber can recover if not completely rotted.