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Mammillaria Spinosissima

Mammillaria spinosissima

succulent

verifiedReviewed by the GreenScout Team

A densely spined mammillaria forming compact rosettes 3–4 inches tall with formidable sharp spination covering the entire body. It produces bright red or purple flowers in concentric rings and produces distinctive red seed pods. Named for its exceptionally thorny appearance, it is a prized collector's item.

Common Problems

Select the problem your Mammillaria Spinosissima 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

Full sun with 5–6 hours daily direct light. Bright indirect light acceptable in hot climates.

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Water

Water thoroughly during growing season when soil is completely dry. Minimize water in winter, watering only sparingly if at all.

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Soil

Very gritty, fast-draining cactus mix. Add extra perlite, pumice, or coarse sand to prevent moisture retention.

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Fertiliser

Light feeding monthly during growing season with diluted cactus fertilizer. Do not fertilize in winter.

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Temperature

Thrives at 60–80°F; requires cool, dry winters (40–50°F) for optimal flowering.

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Humidity

Very low humidity required (below 40%). Damp conditions invite rot.

Toxicity

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Non-toxic but extremely sharp spines pose injury risk; handle with thick gloves.

Common Diseases

filter_dramaRoot Rotchevron_right

Common Pests

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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 is Mammillaria Spinosissima so much spinier than other Mammillaria?

It's named for its exceptionally thorny appearance — formidable sharp spination covers the entire body of this compact species, making thick gloves essential when handling it.

What do the flowers on Mammillaria Spinosissima look like?

It produces bright red or purple flowers in concentric rings, followed by distinctive red seed pods, making it a prized collector's item beyond just its spiny appearance.