Plant Care Monk's Hood Cactus

Monk's Hood Cactus

4.7 out of 5 (9 experiences)

Monk's Hood Cactus has a Survivor plant personality Survivor
Monk's Hood Cactus has a Fast grower plant personality Fast grower

Also known as

Bishop's Cap, Star Plant and 'Star Cactus' - 'Bishop's Cap'


Astrophytum ornatum

How to care for Monk's Hood Cactus


How often to water your Monk's Hood Cactus

Water needs for Monk's Hood Cactus
0.5 cups
every 12

Monk's Hood Cactus needs 0.5 cups of water every 12 when it doesn’t get direct sunlight and is potted in a 5" pot.

Use our water calculator to personalize watering recommendations to your environment or download Greg for more advanced recommendations for all of your plants.

Calculate water needs of Monk's Hood Cactus

Water 0.5 cups every

Does your plant get direct sunlight?

Select the pot size


Check the growing potential in your area

A plant's growing potential is determined from its location, the time of year, and current local weather.

Select a city to check sunlight intensity

Finding light for Monk's Hood Cactus in your home

Light needs and placement for plant Monk's Hood Cactus: 1ft from a window
1ft or less from
a window

Monk's Hood Cactus love being close to bright, sunny windows 😎.

Place it less than 1ft from a south-facing window to maximize the potential for growth.

Monk's Hood Cactus does not tolerate low-light 🚫.

Select your region to see how the current weather in your area affects the placement of Monk's Hood Cactus in your home 🏡.


How to fertilize Monk's Hood Cactus

Nutrient, fertilizer, and repotting needs for Monk's Hood Cactus: repot after 2X growth

Most potting soils come with ample nutrients which plants use to produce new growth.

By the time your plant has depleted the nutrients in its soil it’s likely grown enough to need a larger pot anyway.

To replenish this plant's nutrients, repot your Monk's Hood Cactus after it doubles in size or once a year—whichever comes first.

Water Needs
Sunlight Needs
Native Region

Care Summary for Monk's Hood Cactus

Monk's Hood Cactus

Monk's Hood Cactus

Greg recommends:


0.5 cups every 12 days


< 1ft from a window


Repot after 2x growth

Based on the 4” pot your plant is in, and that it doesn’t get direct sunlight.

What other plant parents say

Monk's Hood Cactus has a Survivor plant personality Survivor 8
Monk's Hood Cactus has a Fast grower plant personality Fast grower 1
Hannah avatar
leaf-1 5 Plants
xp 206 XP
globe Auckland

I love cacti like this one because they never die. Has been brown at the bottom for probably a year now and not sure why but it’s still fine

Survivor Survivor
@juno avatar
leaf-1 5 Plants
xp 99 XP

this mf hasn’t grown at ALL but at least it isn’t dead 👍

Survivor Survivor
@nostalg.iia avatar
leaf-1 68 Plants
xp 969 XP

This is a great resilient plant, it looks very cool and it does well on a windowsill.

Survivor Survivor
@Emilbee avatar
leaf-1 17 Plants
xp 1,344 XP
globe North Vancouver, British Columbia

Watch out for spider mites. But once I treated Spike, no pests seem to have come back (yet)!! He is soo cute but careful of his sharp thorns! 🌵

Survivor Survivor
Jazzmin avatar
leaf-1 6 Plants
xp 127 XP

Painful spikey spikes

Survivor Survivor
@Cjsplanties avatar
leaf-1 23 Plants
xp 841 XP

They don’t grow very quickly but they also do not provide much care. Just place them in a window and forget them for awhile, come back to ‘slightly’ bigger cactus!

Survivor Survivor

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