Mammillaria meyranii

🌵 Care Guide

Mammillaria meyranii is a charming, seed-grown cactus admired for its attractive symmetry, dense spines, and beautiful flowers. Native to Mexico, it generally grows as a small globular to slightly cylindrical plant and may eventually produce offsets, forming attractive clusters over time.

☀️ Light

• Prefers bright light to full sun.
• Indoors, place it near a bright south or east-facing window.
• Outdoors, provide good sunlight while protecting it from extremely harsh midday sun.
• Gradually acclimate the plant to stronger sunlight to prevent sunburn.

💧 Watering

• Spring to Early Fall: Water thoroughly only when the soil is completely dry.
• Depending on the growing conditions, watering may be required approximately every 10–14 days.
• Winter: Reduce watering significantly or keep the plant dry if it is cool and dormant.
• ⚠️ Avoid overwatering and never allow the plant to sit in soggy soil.

🌡️ Temperature

• Prefers warm temperatures around 21–29°C during the day.
• Can tolerate brief drops to around 4°C if kept completely dry.
• Protect from frost, prolonged cold, and excessive humidity.

🌱 Soil

• Requires a gritty, porous, fast-draining cactus soil mix.
• Adding pumice or perlite improves drainage and prevents moisture retention.
• Avoid heavy clay-based or water-retentive soils.

🍽️ Fertilizer

• Feed once a month during spring and summer with a low-nitrogen cactus fertilizer.
• Stop fertilizing during autumn and winter.

🪴 Potting

• Repot approximately every 2–3 years, preferably in early spring.
• Use a pot with excellent drainage holes.
• The plant usually grows as a single head but can produce offsets and gradually form clusters.

🌸 Flowering

• Produces beautiful flowers in rings around the crown of the plant, often in shades of pink.
• Flowering generally occurs from late spring to summer.
• Bright light, proper watering, and good air circulation can encourage flowering.