Button Cactus (Epithelantha micromeris)

Button Cactus

Epithelantha micromeris

Tiny, button-like cactus with delicate white spines, a miniature desert treasure. Compact succulent.

Full sun
0.5/week
Beginner
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Plant Needs

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Sunlight Full sun to bright indirect light; protect from intense midday summer sun to prevent sunscald
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Watering Allow soil to dry completely between waterings; avoid overwatering to prevent root rot
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Temperature Thrives in warm desert temperatures; tolerate brief light frost down to 5°C
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Characteristics

  • Stem: Globular to cylindrical green stem, covered in dense, hair-like white radial spines
  • Flower: Small, funnel-shaped pale pink to white blooms at the crown
  • Fruit: Tiny, fleshy red berry-like fruit, edible when fully ripe
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Care Guide

Watering

Water thoroughly when soil is completely dry, every 10–14 days

Fertilization

Diluted cactus fertilizer once monthly. Use low-nitrogen fertilizer to promote flowering and prevent excessive stem growth

Banana peel tea:Soak dried banana peels in water for 24 hours, dilute 1:20, and apply to soil surface; avoid overuse to prevent nutrient buildup
Pruning
  • Remove dead, shriveled offsets to maintain plant health and appearance
  • Carefully trim broken or discolored spines with tweezers to reduce physical injury risk
  • Repot and gently trim damaged roots in early spring if root rot is detected
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA: Non-toxic; spines may cause minor physical injury if ingested

Humans: No documented toxic compounds; physical irritation may occur from spines

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Garden Uses & Culture

Culture: N/A

Usage: Ornamental succulent for rock gardens, dish gardens, and indoor terrariums