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Cylindropuntia ganderi

Gander's Cholla

Overview

Cylindropuntia ganderi, commonly known as Gander's cholla, is a robust, spiny succulent shrub native to the desert biomes of western North America. It belongs to the Cactaceae family and is known for its intricate, branching cylindrical joints.

Taxonomy and Naming

This species is classified under the genus Cylindropuntia 1. The specific epithet 'ganderi' honors the prominent California botanist Frank Gander, who extensively studied the flora of San Diego County. It was previously treated as a variety of Cylindropuntia acanthocarpa before being recognized as a distinct species 2.

Origin and Habitat

Gander's cholla is native to Southern California (especially San Diego and Imperial counties), the Baja California Peninsula, and portions of Sonora, Mexico 1. It thrives in desert pavement, alluvial washes, dry rocky slopes, and desert scrub communities at elevations up to 1,000 meters above sea level.

Appearance

The plant grows as a highly branched shrub reaching heights of 1 to 2 meters. Its green to yellow-green stem segments are cylindrical, covered in prominent tubercles. The areoles carry numerous stout, yellowish or white spines that turn gray with age, accompanied by irritating glochids. It produces yellowish-green to bronze-yellow cup-shaped flowers in late spring, followed by dry, spiny fruits.

Cultivation

In cultivation, it requires full sun, excellent drainage, and minimal watering. Due to its extreme spiness and large size, it is mostly suitable for outdoor xeriscaping or large containers in sunny, arid climates.

Common Cultivation Mistakes

The most frequent mistakes are overwatering and planting in heavy, organic soil mixes. Wet feet, especially during the cold winter months, will quickly lead to root rot and plant death.

References

  1. POWO (2024). Plants of the World Online. Facilitated by the Royal Botanic Gardens, Kew. Kew Science. ↩
  2. Pinkava, D. J. (1999). Nomenclatural changes in Cylindropuntia (Cactaceae). Haseltonia, 6, 80-81. ↩
Light

Full Sun

Requires full sun, minimum 6 to 8 hours of direct sunlight daily. Indoors, it needs a strong grow light.

Watering

14-45 Days

Extremely drought-tolerant. Water sparingly in summer; keep completely dry in winter.

Soil

Well-draining, sandy, pumice-rich mineral desert substrate.

Use a mineral-heavy mix with coarse sand, pumice, and perlite. Avoid peat-rich soils.

Safety

Contact/Ingestion Risk

Very hazardous. Armed with sharp spines and microscopic glochids that easily penetrate skin. Keep away from pets.

Difficulty

Moderate

Moderate. Low maintenance regarding water, but highly challenging to handle or repot due to severe spines.

Native Habitat

Southern California, Baja California, Sonora

Indigenous to the arid regions of the Sonoran Desert, stretching from San Diego County down into Baja California and coastal northwestern Mexico.

Frequently Asked Questions

Can Gander's Cholla be grown indoors?
It is not recommended for indoors due to its extreme light requirements and highly dangerous, irritating spines. Outdoor cultivation is ideal.
Is Gander's Cholla toxic to pets?
It is not chemically toxic, but mechanically highly dangerous. The microscopic glochids can embed in pets' paws and mouths, causing severe irritation.
How often should it be watered in a pot?
Water only 5-7 days after the soil has completely dried out during summer. From November to March, keep it entirely dry without watering.
What type of soil should be used?
Use a mineral-heavy, porous mix by adding plenty of pumice, coarse sand, and perlite to a standard cactus potting soil.
When does Gander's Cholla bloom?
It blooms in late spring to early summer (typically May to June) with yellowish, cup-shaped flowers depending on sun exposure.
Is it cold hardy?
It can tolerate light frosts down to -8°C (17°F) for short periods, provided the soil is bone-dry. Wet winter cold is fatal.
What should I do if the spines get stuck in my skin?
Remove larger spines with tweezers. For microscopic glochids, apply sticky duct tape or warm wax to the area and pull it off.
When and how should it be repotted?
Repot in spring with extreme caution, using thick leather gloves and heavy newspaper wraps or dedicated cactus tongs to hold the stems.
How fast does it grow?
It has a moderate growth rate compared to other desert cacti, producing several new joint segments per year under optimal sunny conditions.
Why is the plant turning soft and dark?
This is usually a sign of rot caused by overwatering. Stop watering immediately, cut away rotten parts with a sterile knife, and let the healthy tissue callouse.