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Ball cactus (Mammillaria heyderi) Care Guide
Care guide for Ball cactus: light, watering, humidity, soil and temperature, based on the species' botanical profile.
📷 Mike Ostrowski · CC BY 4.0 · GBIF/iNaturalist
✅ Ball cactus is generally pet-safe — details.
Care at a glance
LightPlenty of light; some direct sun is tolerated.
WaterWater roughly every 21 days, let the top 2-3 cm of soil dry out between waterings.
HumidityTolerates average room humidity (10-30%).
TemperatureTypical indoor temperatures (16-26 °C / 60-79 °F); protect from frost.
SoilWell-draining mix, slightly acidic to neutral pH (6.0-7.5).
Origin
Native to: Arizona, Mexico Gulf, Mexico Northeast, Mexico Northwest, Mexico Southeast, New Mexico.
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