Photo: no rights reservedCC0 1.0via iNaturalist
Cardon Cactus Plant Care
Leucostele terscheckii (J.Parm. ex Pfeiff.) Schlumpb.
Updated · Sources · How we source care data
With its striking silver-gray foliage that shimmers in the sunlight, this plant originates from the mountainous regions of South America. Plant collectors are drawn to Leucostele terscheckii for its unique coloration and ability to add a touch of elegance to any garden or indoor space.
Every 7–14 days
Full sun
60–75°F
60–80%
At a glance
How do you care for Cardon Cactus?
Water Cardon Cactus every 7–14 days, letting the top layer of soil dry out between waterings, and give it full sun. It prefers temperatures of 60–75°F (16–24°C) and 60–80% humidity. Fertilize it every month during the growing season.
Where Is the Cardon Cactus Native To?
What Is the Cardon Cactus?
Cardon Cactus (Leucostele terscheckii) belongs to the Cactaceae family within the Leucostele genus. Cardon Cactus is native to South America and popular in cultivation. Cardon Cactus is also known as Giant Saguaro.
Cardon Cactus displays a low rosette, clumping growth habit, reaching up to 3 ft tall with a spread of approximately 2 ft. Cardon Cactus produces brightly colored tubular flowers in red, orange, or yellow.
Leaf size: approximately 3 inches.
How Often Should You Water a Cardon Cactus?
Leucostele terscheckii requires watering every 7–14 days. Allow the top layer of soil to dry between waterings to prevent root rot. Reduce watering frequency during winter when growth slows.
Watering Frequency
Every 7–14 days
Let soil partially dry between waterings
What Light Does the Cardon Cactus Need?
Cardon Cactus thrives in full sun.
Light Requirement
Full sun
What Temperature and Humidity Does the Cardon Cactus Prefer?
Leucostele terscheckii grows best at temperatures of 60–75°F. Cardon Cactus prefers humidity levels of 60–80%. A pebble tray or humidifier helps maintain adequate moisture around the plant.
Temperature
60–75°F
Humidity
60–80%
What Soil Mix Works Best for a Cardon Cactus?
Sandy, well-draining cactus mix with perlite and coarse sand. Good drainage is essential for Cardon Cactus to prevent waterlogging, which leads to root rot and fungal issues.
How Often Should You Fertilize a Cardon Cactus?
Feed Cardon Cactus every month during the growing season (spring and summer) with a balanced fertilizer diluted to the strength on the label.
Pause feeding in autumn and winter, when growth slows, and never fertilize dry soil — water first.
Fertilizing
Every month
During the growing season
The PlantoScan app can remind you when to water and when to fertilize each plant.
How Do You Repot a Cardon Cactus?
Repot every 2-3 years in early spring. Choose a pot one size larger than the current container, and ensure it has drainage holes to allow excess water to escape.
How Do You Propagate a Cardon Cactus?
Cardon Cactus can be propagated through offsets, seeds. Similar propagation techniques also apply to cardon cactus plant care, which shares the same genus.
Is the Cardon Cactus Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Cardon Cactus, so we can't confirm whether it is safe for cats and dogs. Keep pets from chewing it as a precaution.
This is a general caution, not veterinary or medical advice. If your pet ate a plant, contact your vet or animal poison control.
See all plants toxic to cats and plants toxic to dogs.
What Pests and Diseases Affect the Cardon Cactus?
Cardon Cactus is susceptible to scale insects, mealybugs, spider mites. Inspect the foliage regularly, especially along leaf undersides and stems. Treat infestations promptly with insecticidal soap or neem oil to prevent spread.
Yellow leaves, brown tips or drooping? See common plant problems and how to fix them.
What USDA Hardiness Zone Does the Cardon Cactus Need?
Cardon Cactus grows outdoors in USDA Zone 8b – 11b. It survives winters down to planting zone 8b. Cardon Cactus is native to South America and popular in cultivation.
Hardiness Zone
Zone 8b – 11b
Keep exploring plants
Cardon Cactus is one of many species covered in the complete plant care and identification guide, which groups plants by genus, attribute, and popularity.
It belongs to the Leucostele genus — compare its care with other Leucostele species on PlantoScan.
Leucostele is part of the Cactaceae plant family — browse all Cactaceae genera and species.
Cardon Cactus thrives in bright light and direct sun — see other bright-light plants.
More Leucostele Species
Other Leucostele species in PlantoScan's care catalogue share similar watering, light, and soil preferences:
Sources
- Scientific name & taxonomy: Leucostele terscheckii (J.Parm. ex Pfeiff.) Schlumpb., family Cactaceae (first published in in Cactaceae Syst. Init. 28: 29. 2012.) — World Flora Online record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Cardon Cactus, so we can't confirm whether it is safe for cats and dogs. Checked against the ASPCA plant list; any other toxicity note on this page comes from PlantoScan's plant database.
- Photo: Public domain, CC0 1.0, iNaturalist — original.
- Hardiness zone: USDA Zone 8b – 11b, estimated from the plant's typical growing conditions.
- Care values(watering, light, temperature, humidity, soil, fertilizing): PlantoScan's plant database, filtered by automatic plausibility checks — values that fail them are hidden. How we source and check plant data.
Spotted a mistake? Email info@upvision.media with the page link — we check and correct reported errors.
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