Mammillaria pringlei – Spiny Splendour of the Sonoran (WA Prohibited)
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White Halo Cactus – Mammillaria pringlei
Mammillaria pringlei is a small globular cactus native to the arid regions of northern Mexico, particularly the Sonoran Desert. This species is admired for its snow-white radial spines that densely cover the tubercles, giving the plant a frosted, haloed appearance. It often grows solitary but may slowly form clumps with age. Named in honour of Cyrus Pringle, an American botanist, it is a compact and charming specimen well-suited for collectors of miniature and slow-growing cacti.
Distinctive Features
- Spination: Dense white radial spines with a small number of brownish central spines; spines form a woolly, almost feathery texture over the stem.
- Stem Form: Rounded to slightly cylindrical green stems, typically 4–8 cm in diameter and up to 15 cm tall in mature specimens.
- Flowers: Produces dainty, pale pink to whitish flowers arranged in a neat ring near the crown during spring and early summer.
Care Tips
- Light: Thrives in bright, direct sunlight; best placed in a south-facing location or under strong artificial light.
- Water: Allow soil to dry completely between waterings; reduce to once a month or less during winter dormancy.
- Humidity: Prefers dry air; excessive humidity can lead to rot.
- Media: Requires a sharply draining cactus mix; add extra pumice or perlite for improved aeration.
- Temperature: Ideal range is 18–28°C; can tolerate down to 5°C if kept completely dry.
- Fertiliser: Feed monthly during the growing season with a low-nitrogen cactus fertiliser diluted to half strength.
- Repotting: Infrequent repotting needed; only when roots outgrow the container, usually every 3–4 years.
Additional Notes
- Slow-growing and ideal for small pots or dish gardens; performs well indoors with good light exposure.
- Not known to be toxic to pets, but spines can cause physical irritation; handle with care.
Mammillaria pringlei is a subtle yet stunning addition to any succulent collection, especially for those drawn to fine spination and compact form. Its quiet beauty and low-maintenance nature make it a treasured specimen for novice growers and seasoned collectors alike.
Shipping Schedule & Biosecurity Information
- Dispatch Day: All orders are dispatched on Tuesdays.
- Cut-off for Same Week Dispatch: Orders must be placed by Monday 7am (AEST) to be sent that week. Orders placed after this will be dispatched the following Tuesday.
WA, NT & TAS Orders
- Cut-off: Orders to WA, NT and TAS must be placed by Friday 7am (AEST) to be included in the following week’s dispatch.
- Treatment & Delay: These orders require biosecurity treatment and certification, which is completed each Friday. Please allow an additional 1–2 weeks for processing.
Plant Health Certification (PHAC) 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 cost at checkout.
Size: 66mm Pot - A
