Spiny Cactus Plant Care
Selenicereus spinulosus (DC.) Britton & Rose
Updated · Sources · How we source care data
Selenicereus spinulosus is a cactus species native to eastern Mexico and, possibly, the lower Rio Grande Valley of Texas in the United States. Common names include vine-like moonlight cactus and spiny moon cereus.
Every 14–21 days
Bright indirect to partial sun
60–85°F
40–60%
At a glance
How do you care for Spiny Cactus?
Water Spiny Cactus every 14–21 days, letting the top layer of soil dry out between waterings, and give it bright indirect to partial sun. It prefers temperatures of 60–85°F (16–29°C) and 40–60% humidity. Fertilize it every 6 months during the growing season.
Where Is the Spiny Cactus Native To?
What Is the Spiny Cactus?
Spiny Cactus (Selenicereus spinulosus) belongs to the Cactaceae family within the Selenicereus genus. Spiny Cactus is native to eastern Mexico and, possibly, the lower Rio Grande Valley of Texas in the United States.
Spiny Cactus displays a vining, climbing cactus growth habit, reaching up to 10 ft tall with a spread of approximately 3 ft. Spiny Cactus produces large, fragrant white blooms that open at night.
Leaf size: approximately 6 inches.
How Often Should You Water a Spiny Cactus?
Selenicereus spinulosus 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 Spiny Cactus Need?
Spiny Cactus thrives in bright indirect to partial sun. Avoid placing Spiny Cactus in direct, harsh sunlight for extended periods, as this can scorch the foliage.
Light Requirement
Bright indirect to partial sun
What Temperature and Humidity Does the Spiny Cactus Prefer?
Selenicereus spinulosus grows best at temperatures of 60–85°F. Spiny Cactus prefers humidity levels of 40–60%.
Temperature
60–85°F
Humidity
40–60%
What Soil Mix Works Best for a Spiny Cactus?
Sandy, well-draining cactus mix with perlite and coarse sand. Good drainage is essential for Spiny Cactus to prevent waterlogging, which leads to root rot and fungal issues.
How Often Should You Fertilize a Spiny Cactus?
Feed Spiny Cactus every 6 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 6 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 Spiny 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 Spiny Cactus?
Spiny Cactus can be propagated through stem cuttings, grafting. Similar propagation techniques also apply to ric rac cactus plant care, which shares the same genus.
Is the Spiny Cactus Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Spiny 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 Spiny Cactus?
Spiny Cactus is susceptible to spider mites, mealybugs, 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 Spiny Cactus Need?
Spiny Cactus grows outdoors in USDA Zone 13a. It survives winters down to planting zone 13a. Spiny Cactus is native to eastern Mexico and, possibly, the lower Rio Grande Valley of Texas in the United States. In cooler regions, grow Spiny Cactus as a houseplant or bring it indoors before the first frost.
Hardiness Zone
Zone 13a
Keep exploring plants
Spiny 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 Selenicereus genus — compare its care with other Selenicereus species on PlantoScan.
Selenicereus is part of the Cactaceae plant family — browse all Cactaceae genera and species.
Spiny Cactus thrives in bright light and direct sun — see other bright-light plants.
More Selenicereus Species
Other Selenicereus species in PlantoScan's care catalogue share similar watering, light, and soil preferences:
Sources
- Scientific name & taxonomy: Selenicereus spinulosus (DC.) Britton & Rose, family Cactaceae (first published in in Contr. U.S. Natl. Herb. 12: 431. 1909.) — World Flora Online record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Spiny 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.
- Hardiness zone: USDA Zone 13a, calculated from the plant's minimum temperature.
- 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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