Scarlet dahlia (Dahlia coccinea)
Care, watering, light and tips for Scarlet 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 Scarlet dahlia
Dahlia coccinea, also known as the scarlet dahlia, is a wild dahlia species native to Mexico, characterized by its vibrant, intense orange-red single flowers. It can reach heights of up to 1.5 meters, creating a stunning visual display in cottage gardens or as part of mixed borders. Its prolonged blooming season from summer to autumn makes it a striking focal point in any landscape.
Native range
Mexico and Central America
Care tips
It requires full sun for abundant flowering and well-drained soil rich in organic matter. Water regularly, especially during dry periods, but avoid waterlogging to prevent root rot. Protect the tubers from frost by digging them up in cold climates or growing it as an annual. A common mistake is a lack of support, as its stems can grow tall and require staking.
How to save a dying Scarlet dahlia
- Warning signs
- Yellowish or brown leaves, general wilting, unopened or falling flowers, soft and blackened stems.
- First aid
- Check watering (moist but not waterlogged soil). Move to partial shade if intense heat. If rot is suspected, unearth to check tubers.
- What kills it
- Overwatering that rots tubers and roots. Also strong direct sun in hot, dry climates, or frost.
- Can it be saved?
- Yes, if tubers are not completely rotted or frozen. Act quickly by correcting watering and exposure.