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A picture of a Bishop's Cap

Bishop's Cap

Astrophytum myriostigma

Also known as

Bishop's Mitre, Bishop's Hood, Monk's Hood, Bishop's-Hat, Bishop's-Miter Cactus

Astrophytum myriostigma nudum BotGardBln07122011A by User:BotBln (CC BY-SA 3.0)

Full Sun
Light watering


USDA zone


Minimum temperature

Expected size







10 years to reach maturity


  • spring
  • summer
  • autumn
  • winter

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A photo of Bishop's Cap
A photo of Bishop's Cap
A photo of Bishop's Cap
A photo of Bishop's Cap

Bishop's Cap Overview

Astrophytum myriostigma is an evergreen, perennial cactus from the Cactaceae family. It is spherical to shortly columnar in shape and does not possess spines. Commonly known by the names Bishop's Cap and Monk's Hood, amongst others. This plant originates from northeastern Mexico, it requires high levels of sunlight and dry conditions to thrive. Usually growing to around 20cm in height, this species is grey-green in colour, possibly developing a red-purple tinge with good, strong sunlight. It has between 3-7 distinct, raised ribs (on average 5) running vertically around the plant surface. Bishop's Cap produces yellow, daisy-like flowers, these measure approximately 5cm in diameter and may take a red colouration in the centre.

Common problems with Bishop's Cap

How to propagate Bishop's Cap


You can propagate by seeds in the winter or summer.

Special features of Bishop's Cap

Attractive flowers

Indoor plant

Other uses of Bishop's Cap

Grown for their freely produced, flattish, yellow flowers, some with red centres.