Argentine Giant

The Argentine Giant, scientifically known as Echinopsis candicans (though sometimes also referred to as Trichocereus candicans or Leucostele terscheckii), is a sprawling and impressive columnar cactus. Native to the grasslands and semi-arid regions of Argentina and Bolivia, particularly around the Monte Desert, it is well-adapted to environments with hot, dry periods and can tolerate cooler temperatures, even down to 17°F (-8°C) for short durations. As a long-lived perennial, this cactus can thrive for many years, adding a robust and architectural presence to the landscape.

Distinct from the iconic Saguaro, the Argentine Giant typically exhibits a clumping or sprawling growth habit, forming large mounds often 3 to 10 feet across. Its thick, cylindrical stems are light to deep green, featuring prominent ribs adorned with large, white-felted areoles from which golden, prickly spines emerge, creating a striking visual. While the plant itself is sizable, its “giant” moniker is truly earned by its spectacular flowers. In late spring to early summer, mature plants produce enormous, fragrant white flowers that can reach 8 to 12 inches in diameter. These magnificent blooms typically open at night and last for about 24 hours, attracting nocturnal pollinators like moths and bats. Following the flowers, it can produce green or bluish-green fruit. The Argentine Giant is a low-maintenance, drought-tolerant cactus, making it an excellent choice for xeriscaping, rock gardens, and desert landscapes.