Moon Cactus
Taxonomy
Gymnocalycium mihanovichii var. melocactiforme
Gymnocalycium
Cactaceae
Caryophyllales
How to care for Moon Cactus
How often to water your Moon Cactus
every 12
Moon 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.
Water 0.5 cups every
12
Finding light for Moon Cactus in your home
a window
Moon Cactus love being close to bright, sunny windows 😎.
Place it less than 1ft from a south-facing window to maximize the potential for growth.
Moon Cactus does not tolerate low-light 🚫.
Select your region to see how the current weather in your area affects the placement of Moon Cactus in your home 🏡.
How to fertilize Moon Cactus
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 Moon Cactus after it doubles in size or once a year—whichever comes first.
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I got this plant 5 days ago. Do you think it’s a little sick? Should I repot it? #MoonCactus
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Is it okay to transplant into this? #MoonCactus
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New plant Dallas
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Color is now light orange and top looks wrinkly #MoonCactus
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1st time this Lil guy has bloomed. Gorgeous 😍 #brittonandrosecactus
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1st bloom 🤩
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What happened to my moon cactus? Appears to be rotting ball. I just got it two weeks ago and it’s in a sunny area in the house next to another cactus that’s been in that spot for a long time, which seems to be doing well. I did transfer it out of the nursery pot being the roots were coming out of it. Have I killed it? #MoonCactus
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So I dropped my catus and the moons ig? Came off will it still be possible for it to grow? #MoonCactus
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How often do I water my new moon cactus? I'm new to gardening indoors.
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I just watered it today and it hasn’t been watered for about a week and a half. Will it be fine?
Care Summary for Moon Cactus
Moon Cactus
Greg recommends:
Water
0.5 cups every 12 days
Placement
< 1ft from a window
Nutrients
Repot after 2x growth
Based on the 4” pot your plant is in, and that it doesn’t get direct sunlight.