REBUTIA MINUSCULA (CROWN CACTUS)
Type: Cactus
Light: Bright light to full morning sun
Water: Water thoroughly; allow soil to dry completely before watering again
Soil: Fast-draining cactus mix (60–70% mineral)
Temperature: 65–85°F; winter rest at 40–50°F
Fertilizer: Low-nitrogen cactus fertilizer monthly in spring/summer
Propagation: Offsets or seed
Common Problems
• Soft or mushy → Overwatering
• Stretching → Insufficient light
• No flowers → Winter too warm
• White cotton → Mealybugs
Success Tips
✓ Bright light
✓ Excellent drainage
✓ Dry between waterings
✓ Cool, dry winter rest
Mature Size: 2–6 in. tall, 4–12 in. wide
Best Feature: Can become almost completely covered with flowers.
Sharing and reuse
© 2026 James Taylor · Plant Education Project. The original human-authored text in this Information Sheet is licensed under Creative Commons Attribution–NonCommercial 4.0 International (CC BY-NC 4.0).
You may share and adapt this text for noncommercial purposes. Credit the author and Plant Education Project, link to the source and license, and identify any changes. These permissions cannot be withdrawn from users who comply with the license, including for copies already released.
Photographs, illustrations, logos, quotations, and other third-party material are excluded from this text license and retain their individual rights and permissions. Separately published articles and book manuscripts are not licensed by this notice.
