Coryphantha pycnacantha
Care, watering, light and tips for Coryphantha pycnacantha on Floravia.
Quick facts
- Family: Cactaceae
- Difficulty: Easy to care for
- Watering: every 20 days
- Light: Full sun
- Temperature: 10–40 °C
- Toxicity: Toxic to pets
About Coryphantha pycnacantha
Coryphantha pycnacantha, commonly known as 'biznaga partida chiche de burro', is a small, globose to short columnar cactus, with a blue-green hue, developing prominent conical tubercles. Its areoles, initially woolly, become glabrous over time, and it produces strong, radial spines that give it a robust appearance. It is ideal for cactus collections, xeriscaping, and pots where its unique form and hardiness can be appreciated.
Native range
Mexico (Oaxaca and Puebla)
Care tips
It requires full sun exposure for optimal growth and abundant flowering. Watering should be sparse, allowing the substrate to dry out completely between waterings in spring and summer, and almost entirely suspended in winter to prevent rot. Use a very porous and well-draining substrate, specific for cacti. A common mistake to avoid is overwatering, which is the main cause of death in this species; ensure that water never stands at the base of the pot.
How to save a dying Coryphantha pycnacantha
- Warning signs
- Widespread softening, dark spots at base, severe wrinkling not recovering after watering.
- First aid
- Stop watering, check roots for rot. If present, cut affected tissue with sterilized tool. Replant in dry, well-draining substrate.
- What kills it
- Overwatering, especially in winter or low light. Also, poor drainage or moisture-retentive organic soil.
- Can it be saved?
- Yes, if rot hasn't advanced too far into the main stem. Act quickly to prevent spread.