Dasylirion acrotrichum aka Brush Tipped Sotol

Dasylirion acrotrichum is an evergreen shrub known as green desert spoon. It belongs to the asparagus family, Asparagaceae, and comes from Mexico. Its native habitat includes deserts and dry shrubland. This succulent keeps its leaves through the year. It forms a round crown above a thick, stout trunk. Its shape suits pots, patios, and gardens with a subtropical style.

Garden plants reach about 3.3–4.9 feet [1–1.5 metres] tall. Their spread reaches about 1.6–3.3 feet [0.5–1 metre]. The RHS also describes a trunk reaching 3.9 feet [1.2 metres]. Growth takes time: plants may need 20–50 years to reach maturity. The leaves are pale green, with hooked spines along their edges. A small tuft of fibres marks each leaf tip. Together, the leaves form a dense ball of foliage. In summer, a tall, thin flower spike rises above them. Many white, star-shaped blooms crowd the spike.

Give this plant full sun and a spot sheltered from exposure. Outdoors, it needs soil that drains very fast. Both sandy and loamy soils suit it. It accepts acid, neutral, and alkaline soil conditions. The plant withstands drought, but its watering needs change with the season. Under glass, water well while it grows. Keep it almost dry during the rest of the year. The RHS rates its hardiness as H2. This means it tolerates cool conditions but cannot survive freezing. In cold climates, a greenhouse or conservatory provides a suitable growing space.

For pot culture under glass, use a loose growing mix. The RHS specifies equal amounts of loam and sand. Add half as much leaf mould and peat substitute as either main part. Provide strong light and keep air humidity low. Feed once a month during growth with a balanced liquid fertiliser. Potted plants can spend summer outside. Their rounded crown gives patios a clear, bold shape. They also fit greenhouse displays and sheltered subtropical planting schemes.

Routine pruning is not needed, and the RHS reports few disease problems. Mealybugs and scale insects may still attack plants. Check for these pests as part of normal care. To raise new plants, sow seed in spring at 21°C. The supplied sources give no details about fruit or edible parts. They also provide no evidence that establishes safety for people or pets. The hooked leaf spines remain an important feature when choosing its position.