Mammillaria gracilis fragilis 'Thimble Cactus'
- Light: Bright light with ample airflow.
- Water: Water thoroughly when soil is dry to touch.
- Extras: Requires porous cactus soil with excellent drainage.
Tiny globular bodies are densely covered with interlaced white radial spines, giving the impression of white "thimbles". Clusters prolifically to form large mats. Satiny creamy yellow flowers in late winter.