Mammillaria

Mammillaria zeilmanniana

succulent

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. It reaches 2–3 inches tall with multiple offsets forming mounds, making it ideal for containers and rock gardens. Flowers appear reliably in spring and are followed by red berries.

Common Problems

Select the problem your Mammillaria is experiencing to get a treatment guide.

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Root Rotchevron_right

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Overwateringchevron_right

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Mushy Stemschevron_right

Care Guide

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Light

Bright indirect to full sun. Provide 4–6 hours of sun daily; intense afternoon sun in hot climates can cause fading.

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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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Fertiliser

Feed monthly during growing season with diluted cactus fertilizer. Avoid fertilizing in winter.

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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.

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Humidity

Low to very low humidity (below 50%). Avoid damp conditions.

Toxicity

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Non-toxic but spines are sharp and can puncture skin.

Common Diseases

filter_dramaRoot Rotchevron_right

Common Pests

coronavirusMealybugschevron_right pest_controlSpider Miteschevron_right

Seasonal Care

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Resume regular watering and feeding as growth picks up.

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Peak growing season. Water and feed regularly.

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Reduce watering as growth slows. Stop heavy feeding.

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Minimal watering and feeding. Protect from frost if needed.

Frequently Asked Questions

Why does my Mammillaria form a mound instead of staying a single ball?

It's a clustering species that naturally produces multiple offsets over time, forming mounds rather than staying solitary — this is expected growth, not overcrowding to fix.