Echinopsis spachiana (Lem.) Friedrich & G.D.Rowley
Golden Column, Golden Torch, Torch Cactus, White Torch Cactus
Cereus santiaguensis, Cereus spachianus, Echinocereus spachianus, Echinopsis santiaguensis, Soehrensia spachiana, Trichocereus santiaguensis, Trichocereus spachianus
Echinopsis spachiana, formerly known as Trichocereus spachianus, is a slow-growing columnar cactus with cylindrical stems with 10 to 15 ribs lined with large woolly areoles, out of which grow clusters of spines. The stems grow up to 6.6 feet (2 m) tall and 2.4 inches (6 cm) in diameter, branching at the base. Areoles are about 0.4 inches (1 cm) apart and covered with curly yellow wool that turns white or grey as they age. The straight spines are reddish-yellow initially, fading to gray as they age. Each areole bears 8 to 10 radial and 1 to 3 longer central spines. The up to 0.5 inches (1.2 cm) long central spines are surrounded by up to 0.4 inches (1 cm) long radial spines. Flowers are white, funnel-shaped, up to 6 inches (15 cm) in diameter, and up to 8 inches (20 cm) long. They appear in spring and open at night.
USDA hardiness zone 9a to 11b: from 20 °F (−6.7 °C) to 50 °F (+10 °C).
How to Grow and Care
If you can grow cacti and succulents successfully, you can likely grow the Echinopsis species without too much trouble. Like many cacti, they prefer a drying period between waterings, even if they slightly wilt. When you water, however, you should water deeply. The plant will noticeably plump up. The cactus mustn't be exposed to prolonged dampness and sitting water. Never let your cactus sit in a dish of water. Laensureure to fertilizer during the growing season for the best results.
Echinopsis can easily be rooted from offsets that tend to cluster around the mother plant's base. Cut offsets close to the stem, at the narrowest possible place. When rooting cacti from cuttings, let the fresh cutting drghtly on a paper towel and cut the cacti at the narrowest place possible. After a few days to a few weeks, depending on the cut surface's size, the cut surface should have dried out and formed a callous or slightly rough opening. Once the callous has formed, place the cutting in a rooting mixture of fast-draining cacti soil.
See more at How to Grow and Care for Echinopsis.
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