Astrophytum myriostigma: How to Grow and Care for Bishop

Astrophytum myriostigma Bishop

Scientific name: Astrophytum myriostigma

Common name: Bishop

This columnar cacti is a small, rounded plant that grows taller with 5 to 10 ribs as it matures. The gray-green plant has white tufts of hair instead of spikes on its ribs. After it matures, it produces sweet smelling yellow flowers.

Quick Look at Astrophytum myriostigma

  • Full sun to partial shade
  • Typical water needs for a succulent. Do not water in the Winter (see below for additional information)
  • Plant grows up to 3′ (91 cm) tall
    Plant grows up to 8″ (20 cm) wide
  • Zone 10a (Minimum 30° F | -1.1° C)
  • Not cold hardy
  • Propagation by seeds
  • Generally non-toxic to humans and animals
  • Winter Dormant

General Care for Astrophytum myriostigma ‘Bishop’s Hat’

A lot of interest can be found in an outdoor rock garden or container garden. There are yellow summers in the Summer.


Astrophytum myriostigma ‘Bishop’s Hat’ has typical watering needs for a plant. The “soak and dry” method allows the soil to dry out completely between waterings. Don’t water in the winter when ‘Bishop’s Hat’ is not active. It could lead to root rot.

Where to Plant

If you live in a zone that gets colder than 30 F (- 1.1 C), it is best to plant this plant in a container that can be brought indoors and placed under a grow light. It does well in both full and partial sun.

You can plant in an area of your garden that gets 6 hours of sunlight a day. If you’re in the Northern Hemisphere, place a room that gets a lot of sunlight near a southern-facing window.

How to Propagate Astrophytum myriostigma ‘Bishop’s Hat’

Astrophytum myriostigma ‘Bishop’s Hat’ can be grown from seeds.

You can place your seeds in a well-draining soil. If you live above 9a you can grow Astrophytum seeds outdoors. If you live in a cooler area, you can sow indoors under a grow light or on a seed mat.


  1. Astrophytum myriostigma (Bishop) – Wikipedia

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