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About Echinopsis arachnacantha
Echinopsis arachnacantha is a super rare houseplant 🌿 that needs very little water to thrive. They do best in long-lasting, direct light ☀️ and should be less than 1 foot from a window.
Echinopsis arachnacantha likes soil that is extremely well-draining. Your plant shouldn't need added fertilizers if you repot each time it doubles in size.
Taxonomy
Echinopsis arachnacantha
Echinopsis
Cactaceae
Caryophyllales

How to care for Echinopsis arachnacantha

How often to water your Echinopsis arachnacantha

every 12
Echinopsis arachnacantha 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

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 Echinopsis arachnacantha in your home

a window
Echinopsis arachnacantha love being close to bright, sunny windows 😎.
Place it less than 1ft from a south-facing window to maximize the potential for growth.
Echinopsis arachnacantha does not tolerate low-light 🚫.
Select your region to see how the current weather in your area affects the placement of Echinopsis arachnacantha in your home 🏡.

How to fertilize Echinopsis arachnacantha

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 Echinopsis arachnacantha after it doubles in size or once a year—whichever comes first.

Echinopsis arachnacantha 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.
Sunlight Needs
Echinopsis arachnacantha 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 🏡.
Toxicity
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.
Humidity
Echinopsis arachnacantha prefers dry environments. Providing extra humidity or misting your plant allows water to linger on leaves, which can create the perfect environment for harmful types of fungi.
Soil
Echinopsis arachnacantha is very sensitive to wet soil, so choose a potting soil that drains very well and doesn’t retain too much moisture. A good soil will have lots of perlite or vermiculite for drainage and some organic matter for nutrition. A few handfuls of perlite added to regular store-bought cactus soil will do the trick!
Fertilizer
Echinopsis arachnacantha grows very slowly and doesn’t require added fertilizer. Replacing your plant’s potting soil once a year should provide them with more than enough nutrition. Remember, plants get their energy from sunlight, not fertilizer!
Dormancy
It’s common for Echinopsis arachnacantha to go dormant in the wintertime and you may notice their growth slow down. Waterings should be spaced out more during this time.
Native Region
Echinopsis arachnacantha is native to South America.
Care Summary for Echinopsis arachnacantha
Echinopsis arachnacantha
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.
