Mammillaria zeilmanniana – Ruby Pincushion Cactus
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Mammillaria zeilmanniana is a small, clustering cactus species native to Guanajuato, Mexico. It grows on rocky slopes and cliffs in semi-arid regions, often in pockets of gritty soil where drainage is excellent. The species is known for its long flowering period and the ability to produce vibrant blooms multiple times in a year under favourable conditions.
The stems are spherical to short cylindrical, covered in tubercles arranged in spirals, each bearing a cluster of white radial spines and a few central spines. Flowers are typically bright magenta to purple-pink and can form a ring around the stem apex. Following pollination, elongated red fruits develop, containing small black seeds.
In cultivation, it is undemanding when provided with strong light, low humidity, and a free-draining mineral-based substrate. It is tolerant of occasional drought but benefits from regular watering during its active spring and summer growth. In winter, watering should be greatly reduced to keep the plant dry and cool, encouraging abundant flowering in the following season.
Care Tips:
- Light: Full sun to bright light for compact growth and strong flowering.
- Water: Water moderately in the growing season; keep almost dry in winter.
- Humidity: Low humidity with good airflow.
- Media: Use a gritty, free-draining cactus mix.
- Fertiliser: Apply a dilute, low-nitrogen cactus fertiliser during active growth.
- Temperature: Prefers 18–30 °C; protect from frost.
- Repotting: Repot every 2–3 years in spring, handling carefully to avoid damaging spines.
Shipping Schedule and Biosecurity Information
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Dispatch & Shipping Information
Non-Biosecurity States (QLD, NSW, ACT, VIC, SA): We now offer two dispatches per week for these regions:
- Tuesday Dispatch: Orders placed by Sunday 11:59 PM AEST.
- Friday Dispatch: Orders placed by Wednesday 11:59 PM AEST. Orders placed after these cut-offs will be dispatched on the next available day.
Biosecurity States (WA, NT, TAS): These orders require mandatory biosecurity treatment (PHC) and follow a specific weekly schedule:
- Cut-off: Orders must be placed by Thursday 11:59 PM AEST.
- Dispatch Day: Orders are processed over the weekend and dispatched on Tuesday.
Plant Health Certification (PHC) Fees:
- $20 fee applies to WA orders.
- $10 fee applies to NT and TAS orders. This fee is per order (not per plant) and is included in your shipping costat checkout.
Important Note: We operate independently from Collectors Corner. For any enquiries, please refer to our contact page
Size: 66mm Pot
