
Royal Cross Mammillaria
Mammillaria karwinskiana subsp. nejapensis · Native to Mexico (Oaxaca)
A distinctive pincushion cactus from Oaxaca with white radial spines arranged around darker central spines that create a striking cross-like pattern at each tubercle — a collector’s favorite for its unique detail.
Available in 4½ inch
Care
Light
Bright, direct light for the most compact growth and vivid spine contrast.
Water
Allow to dry between waterings. Minimal water in winter.
Soil & Feeding
Well-draining cactus mix. Light feeding in the growing season.
Quick Tip
The cross-shaped spine pattern is most visible in bright, direct light — a sunny spot enhances the effect.
Details
Named for the distinctive cross pattern formed by its dark central spines against white radials — a unique and eye-catching detail that makes this species stand out in any collection.
- ✅ Distinctive cross-pattern spine arrangement at each areole
- ✅ Compact, globe-shaped and manageable in size
- ✅ Produces rings of pink to cream flowers in season
Size
Available in a 4½ inch pot — a great starter size that’s easy to place on a windowsill, desk, or shelf, and simple to repot as it grows.
Good to Know
⚠️ Has fine spines — handle with care. Keep away from children and pets.
Plant Bio
Mammillaria karwinskiana subsp. nejapensis · also called the Nejapa Pincushion
A subspecies of Mammillaria karwinskiana native to the dry hills of Oaxaca, Mexico — one of the most biodiverse states in the country for endemic cacti. This plant is prized by collectors for the distinctive spine pattern that gives it its royal name.
Each areole bears a group of white radial spines surrounding one or more darker, contrasting central spines. The resulting cross-shaped pattern repeats across the entire surface of the stem, creating a graphic, detailed texture unlike most other Mammillarias.
Like most Mammillarias, it blooms reliably in season with rings of pink to cream flowers, and is generally an easy and rewarding plant to grow.
What makes it special?
- The cross-shaped spine pattern at each areole is a unique identifying feature.
- From Oaxaca — a biodiverse state known for many endemic cacti species.
- The contrast of dark centrals against white radials is particularly vivid and graphic.
Note: Has fine spines — handle with care. Keep away from children and pets. Grown for ornamental purposes only.

