Pot Size: 8"
Accepted Scientific Name:
Pachycereus pringlii
Origin and Habitat:
Pachycereus pringlii, commonly known as the Mexican Giant Cardon, is native to the Baja California Peninsula and parts of Sonora, Mexico. It thrives in extremely arid, coastal, and inland desert environments where rainfall is scarce and temperatures are consistently high. Found on rocky slopes, lava fields, and gravelly plains, it is one of the tallest cactus species in the world. The plant is well-adapted to harsh desert conditions, utilizing shallow but expansive root systems to absorb moisture quickly after infrequent rains and storing water in its thick, columnar stems.
Description:
Pachycereus pringlii is a massive, tree-like columnar cactus that can grow up to 30 feet (360 inches) in its native habitat, though typically smaller in cultivation. It forms a thick central trunk with several upright branches, each heavily ribbed and covered in short, grayish spines. The stems are bluish-green and can reach over 12 inches in diameter. In spring, mature plants produce large, tubular white flowers that open at night and are pollinated by bats. The flowers emerge along the upper ribs and are followed by edible, spiny fruits.
Cultivation:
Zone: Best suited for USDA Zones 9–11; grow in containers in cooler climates.
Temperature: Thrives in 20–35°C; tolerates short drops to 5°C if kept completely dry.
Growth Rate: Slow to moderate depending on heat, light, and soil conditions.
Soil: Requires fast-draining, mineral-rich soil with added pumice for root aeration.
Watering: Water deeply during the growing season, allowing the soil to dry out completely between waterings. Keep dry in winter.
Fertilizing: Use a balanced, diluted cactus fertilizer every 2–3 weeks in spring and summer.
Light: Needs full sun to partial shade; full sun promotes strong vertical growth and spine development.
Pests and Diseases: Generally pest-resistant but may be affected by mealybugs or root rot in poorly drained conditions.
Propagation:
Propagated by seed for best results. Sow in a well-draining pumice-rich mix, keep warm and lightly moist until germination occurs.
