Mammillaria hahniana (Old Lady Cactus) 4"—A Botanical Performer in Your Home Stage

Meet the Mammillaria hahniana (Old Lady Cactus) 4", a plant that’s as thoughtful as you are. Known affectionately as the “Old Lady Cactus,” this charming puffball is covered in soft white fuzz and short, reddish spines—like a desert grandma in her finest mohair sweater. And when she’s really happy? She’ll surprise you with a halo of bright pink flowers, like a floral crown on her silver head.

The Nitty-Gritty (Plant Care):
• Light: Bright, direct sunlight is key to keeping her compact and blooming. South-facing window? She’s in.
• Water: Water deeply but only when the soil is bone dry. In winter, hold back—she enjoys a good nap.
• Humidity: Dry air all the way. High humidity is a no-go for this desert darling.

What It’s Telling You:
• Happy Signs: Dense, symmetrical shape with strong white fuzz and pink blooms = thriving.
• Needs TLC: If it’s stretching, softening, or losing shape, she’s likely craving more sun or getting too much water.

Good News for Pet Parents:
Not pet-safe. Soft-looking doesn’t mean snuggle-friendly—those fine spines can irritate skin and paws.

Extra Love for Detail Lovers:
• The 4" size refers to the diameter of the nursery pot, not the height of the plant.
• Your Mammillaria hahniana 4" will arrive in its nursery pot—any containers or ceramics shown are for styling inspiration only.
• At 3B’s Flowers, we photograph every plant in-house, but nature doesn’t do clones. Expect slight variations in fuzz density, bloom ring, or symmetry—just like every grand old lady, each one has her own personality.

Symbolism with Style:
The Old Lady Cactus represents quiet wisdom, warmth, and gentle strength. She’s the perfect pick for cactus collectors, cozy minimalist corners, or anyone who appreciates age and elegance.