Photo: P Gonzalez ZamoraCC BY 4.0via iNaturalistresized / cropped
Giant Pincushion Cactus Plant Care
Mammillaria gigantea Hildm. ex K.Schum.
Updated · Sources · How we source care data
This cactus species is known for its large, spherical shape and dense covering of bright yellow spines. Originating from Mexico, the Mammillaria gigantea is highly sought after by plant collectors for its unique appearance and stunning display of vibrant flowers.
Every 10–14 days
Full sun
60–85°F
30–50%
At a glance
How do you care for Giant Pincushion Cactus?
Water Giant Pincushion Cactus every 10–14 days, letting the top layer of soil dry out between waterings, and give it full sun. It prefers temperatures of 60–85°F (16–29°C) and 30–50% humidity. Fertilize it every month during the growing season.
Where Is the Giant Pincushion Cactus Native To?
What Is the Giant Pincushion Cactus?
Giant Pincushion Cactus (Mammillaria gigantea) belongs to the Cactaceae family within the Mammillaria genus. Giant Pincushion Cactus is native to Mexico.
Giant Pincushion Cactus displays a low clumping cactus growth habit, reaching up to 1 ft tall with a spread of approximately 2 ft. Giant Pincushion Cactus produces small, colorful flowers in shades of pink, red, yellow, or white.
How Often Should You Water a Giant Pincushion Cactus?
Mammillaria gigantea requires watering every 10–14 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 10–14 days
Let soil partially dry between waterings
What Light Does the Giant Pincushion Cactus Need?
Giant Pincushion Cactus thrives in full sun.
Light Requirement
Full sun
What Temperature and Humidity Does the Giant Pincushion Cactus Prefer?
Mammillaria gigantea grows best at temperatures of 60–85°F. Giant Pincushion Cactus prefers humidity levels of 30–50%.
Temperature
60–85°F
Humidity
30–50%
What Soil Mix Works Best for a Giant Pincushion Cactus?
Sandy, well-draining cactus mix with perlite and coarse sand. Good drainage is essential for Giant Pincushion Cactus to prevent waterlogging, which leads to root rot and fungal issues.
How Often Should You Fertilize a Giant Pincushion Cactus?
Feed Giant Pincushion 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 Giant Pincushion 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 Giant Pincushion Cactus?
Giant Pincushion Cactus can be propagated through offsets, seeds. Similar propagation techniques also apply to ladyfinger cactus plant care, which shares the same genus.
Is the Giant Pincushion Cactus Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Giant Pincushion 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 Giant Pincushion Cactus?
Giant Pincushion Cactus 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 Giant Pincushion Cactus Need?
Giant Pincushion Cactus grows outdoors in USDA Zone 9b – 11b. It survives winters down to planting zone 9b. Giant Pincushion Cactus is native to Mexico. In cooler regions, grow Giant Pincushion Cactus as a houseplant or bring it indoors before the first frost.
Hardiness Zone
Zone 9b – 11b
Keep exploring plants
Giant Pincushion 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 Mammillaria genus — compare its care with other Mammillaria species on PlantoScan.
Mammillaria is part of the Cactaceae plant family — browse all Cactaceae genera and species.
Giant Pincushion Cactus thrives in bright light and direct sun — see other bright-light plants.
More Mammillaria Species
Other Mammillaria species in PlantoScan's care catalogue share similar watering, light, and soil preferences:
Sources
- Scientific name & taxonomy: Mammillaria gigantea Hildm. ex K.Schum., family Cactaceae (first published in Gesamtbeschr. Kakt.: 578. 1898.) — World Flora Online record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Giant Pincushion 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: P Gonzalez Zamora, CC BY 4.0, iNaturalist — original.
- Hardiness zone: USDA Zone 9b – 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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