Giant dioon (Dioon spinulosum)
Care, watering, light and tips for Giant dioon on Floravia.
Quick facts
- Family: Zamiaceae
- Difficulty: Moderate care
- Watering: every 7 days
- Light: Partial shade
- Temperature: 10–30 °C
- Toxicity: Toxic to pets
About Giant dioon
The Coyolito de Cerro (Dioon spinulosum) is a majestic, slow-growing cycad native to Mexico, capable of reaching impressive sizes over time. Its rigid, bright green pinnate leaves emerge from a robust trunk, giving it a prehistoric and sculptural appearance. It is an ideal plant for tropical or subtropical gardens, rockeries, or as a specimen plant where its stature can be showcased.
Native range
Mexico
Care tips
It requires full sun or light partial shade for optimal development, although it tolerates partial shade, which may slow its growth. Watering should be moderate, allowing the substrate to dry out between waterings to prevent root rot, especially in winter. It prefers a well-drained substrate, rich in organic matter, and with a slightly acidic to neutral pH. A common mistake is overwatering, which can lead to the plant's demise.
How to save a dying Giant dioon
- Warning signs
- Yellowish or brown, soft leaves; spots on trunk; no growth.
- First aid
- Check drainage and roots. If rot, prune affected parts with sterilized tools. Repot in new, well-draining substrate.
- What kills it
- Overwatering and poor drainage, causing root and trunk rot. Does not tolerate waterlogging.
- Can it be saved?
- Yes, if acted upon quickly. Rot progresses slowly. Ensure good drainage and avoid excess water.