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Mushy Stems in Mammillaria

verifiedReviewed by the GreenScout Team

A small, clustering mammillaria cactus with dense spination and vibrant magenta-pink flowers that bloom in rings around the plant

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Mammillaria care requirements

These care conditions are most relevant to mushy stems in Mammillaria. Check each one as a potential cause.

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Water
Water thoroughly during growing season (spring/summer), allowing soil to dry between waterings. Reduce watering significantly in winter to almost dry conditions.
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Soil
Gritty cactus mix with added perlite or coarse sand to ensure excellent drainage.
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Temperature
Prefers 60–75°F during growth; tolerates 50°F in winter. Cold-hardy to approximately 20°F (–7°C) when dry.
symptoms

Symptoms to look for in Mammillaria

  • fiber_manual_recordSoft, water-soaked stems
  • fiber_manual_recordStem collapsing at base
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Common causes in Mammillaria

  • fiber_manual_recordOverwatering
  • fiber_manual_recordRoot rot
  • fiber_manual_recordStem rot disease
  • fiber_manual_recordCold damage
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How to diagnose mushy stems in Mammillaria

Press gently on stems. Healthy stems are firm. Mushy stems indicate rot.

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How to treat mushy stems in Mammillaria

Trim affected stems. Allow soil to dry. Repot with fresh compost.

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Preventing mushy stems in Mammillaria

Water sparingly. Never let plants sit in water. Use well-draining soil.

Other Mammillaria problems

Mushy Stems in Mammillaria — Causes & Treatment | GreenScout