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Rebutia muscula (Mouse Cactus)
Botanical Name:Rebutia muscula
Common Names: Mouse Cactus, Orange Crown Cactus
Rebutia muscula is a small, clumping cactus native to Bolivia, valued for its soft-looking spines and vibrant orange blooms that appear freely in spring and summer. This miniature species forms rounded, green stems that offset readily, creating dense clusters over time. Its compact size and showy flowers make it an excellent choice for containers, windowsills, and cactus collections. Mature clumps typically stay under 6 inches tall, spreading wider with age.
Care and Cultivation:
Prefers bright light to full sun
Water sparingly; allow soil to dry completely between waterings
Use a fast-draining cactus soil mix
Well suited for small containers and indoor growing
Frost Tolerance and Cold Hardiness:
Best suited for USDA Zones 9–11
Can tolerate brief cold down to about 25°F (-4°C) when dry
Protect from frost and prolonged cold
Ideal growing temperatures: 60–85°F (16–29°C)
Winter Dormancy and Health:
Growth slows during winter
Reduce watering significantly in colder months
Cooler, drier winters encourage better flowering
Maintain bright light year-round
Notes:
Produces abundant bright orange flowers
Offsets readily to form clumps
Compact, beginner-friendly cactus
Excellent choice for small-space collections
Botanical Name:Rebutia muscula
Common Names: Mouse Cactus, Orange Crown Cactus
Rebutia muscula is a small, clumping cactus native to Bolivia, valued for its soft-looking spines and vibrant orange blooms that appear freely in spring and summer. This miniature species forms rounded, green stems that offset readily, creating dense clusters over time. Its compact size and showy flowers make it an excellent choice for containers, windowsills, and cactus collections. Mature clumps typically stay under 6 inches tall, spreading wider with age.
Care and Cultivation:
Prefers bright light to full sun
Water sparingly; allow soil to dry completely between waterings
Use a fast-draining cactus soil mix
Well suited for small containers and indoor growing
Frost Tolerance and Cold Hardiness:
Best suited for USDA Zones 9–11
Can tolerate brief cold down to about 25°F (-4°C) when dry
Protect from frost and prolonged cold
Ideal growing temperatures: 60–85°F (16–29°C)
Winter Dormancy and Health:
Growth slows during winter
Reduce watering significantly in colder months
Cooler, drier winters encourage better flowering
Maintain bright light year-round
Notes:
Produces abundant bright orange flowers
Offsets readily to form clumps
Compact, beginner-friendly cactus
Excellent choice for small-space collections