Photo: no rights reservedCC0 1.0via iNaturalist
Earle's cereus Plant Care
Harrisia earlei Britton & Rose
Updated · Sources · How we source care data
This unique cactus species is characterized by its long, slender green stems covered in dense clusters of golden spines. Originating from the deserts of Mexico, Harrisia earlei is highly sought after by plant collectors for its striking appearance and ability to thrive in dry, arid conditions. Its elegant shape and vibrant colors make it a standout addition to any succulent collection.
Every 14–21 days
Full sun
50–90°F
10–40%
At a glance
How do you care for Earle's cereus?
Water Earle's cereus every 14–21 days, letting the top layer of soil dry out between waterings, and give it full sun. It prefers temperatures of 50–90°F (10–32°C) and 10–40% humidity. Fertilize it every 8 months during the growing season.
Where Is the Earle's cereus Native To?
What Is the Earle's cereus?
Earle's cereus (Harrisia earlei) belongs to the Cactaceae family within the Harrisia genus. Earle's cereus is native to Cuba. Earle's cereus is also known as Earle's harrisia.
Earle's cereus displays a columnar, branching cactus growth habit, reaching up to 6 ft tall with a spread of approximately 2 ft. Earle's cereus produces large white nocturnal blooms.
Leaf size: approximately 3 inches.
How Often Should You Water a Earle's cereus?
Harrisia earlei requires watering every 14–21 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 14–21 days
Let soil partially dry between waterings
What Light Does the Earle's cereus Need?
Earle's cereus thrives in full sun.
Light Requirement
Full sun
What Temperature and Humidity Does the Earle's cereus Prefer?
Harrisia earlei grows best at temperatures of 50–90°F. Earle's cereus prefers humidity levels of 10–40%.
Temperature
50–90°F
Humidity
10–40%
What Soil Mix Works Best for a Earle's cereus?
Sandy, well-draining cactus mix with perlite and coarse sand. Good drainage is essential for Earle's cereus to prevent waterlogging, which leads to root rot and fungal issues.
How Often Should You Fertilize a Earle's cereus?
Feed Earle's cereus every 8 months 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 8 months
During the growing season
The PlantoScan app can remind you when to water and when to fertilize each plant.
How Do You Repot a Earle's cereus?
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 Earle's cereus?
Earle's cereus can be propagated through stem cuttings, offsets. Similar propagation techniques also apply to fragrant water-apple plant care, which shares the same genus.
Is the Earle's cereus Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Earle's cereus, 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 Earle's cereus?
Earle's cereus is susceptible to spider mites, scale insects. 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 Earle's cereus Need?
Earle's cereus grows outdoors in USDA Zone 10b – 11b. It survives winters down to planting zone 10b. Earle's cereus is native to Cuba. In cooler regions, grow Earle's cereus as a houseplant or bring it indoors before the first frost.
Hardiness Zone
Zone 10b – 11b
Keep exploring plants
Earle's cereus 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 Harrisia genus — compare its care with other Harrisia species on PlantoScan.
Harrisia is part of the Cactaceae plant family — browse all Cactaceae genera and species.
Earle's cereus thrives in bright light and direct sun — see other bright-light plants.
More Harrisia Species
Other Harrisia species in PlantoScan's care catalogue share similar watering, light, and soil preferences:
Sources
- Scientific name & taxonomy: Harrisia earlei Britton & Rose, family Cactaceae (first published in Cactaceae 2: 154. 1920.) — World Flora Online record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Earle's cereus, 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 10b – 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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