How to care for Acanthocalycium
How often to water your Acanthocalycium
Acanthocalycium needs 0.5 cups of water every 12 when it doesn’t get direct sunlight and is potted in a 5" pot located in San Jose, California.
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
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.
San Jose, California
Finding light for Acanthocalycium in your home
Acanthocalycium love being close to bright, sunny windows 😎.
Place it less than 1ft from a south-facing window to ensure it receives enough light to survive during this time of reduced sunlight intensity in San Jose, California ⛅.
Acanthocalycium does not tolerate low-light 🚫.
How to fertilize Acanthocalycium
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 Acanthocalycium after it doubles in size or once a year—whichever comes first.
Acanthocalycium thrives in dry soil and should be watered sparingly. Use our water calculator to personalize watering recommendations to your environment or download Greg for more advanced recommendations for all of your plants.
Acanthocalycium requires abundant, bright and direct light. Place it less than one foot from a window to ensure it receives enough light to survive 💪. Select your region to see how the current weather in your area affects the placement in your home 🏡.
Greg does not have confirmed data on this plant’s toxicity. If you, a family member, or a pet consumes plant material of unknown toxicity, it’s always best to consult a medical professional.
If you or someone else ingested this plant, call Poison Control at US (800) 222-1222. If a pet consumed this plant, contact your veterinarian or the ASPCA at US (888) 426-4435.
Acanthocalycium produces flowers in the wild, but does not flower when kept as houseplants.
Care Summary for Acanthocalycium
0.5 cups every 12 days
< 1ft from a window
Repot after 2x growth
Based on your location in San Jose, California, the 4” pot your plant is in, and that it doesn’t get direct sunlight.