Dasylirion serratifolium (Karw. ex Schult. & Schult.f.) Zucc. ·

🌱 Morphology

 Slow-growing perennial xerophyte that develops a woody trunk, generally short in young specimens, which can reach 1–2 m in height with age. At its tip, it forms a dense, rounded rosette of numerous linear, rigid, and arched leaves, measuring about 50–110 cm in length and 1–3 cm in width. They exhibit bluish-green or glaucous gray hues, with a rough surface and finely serrated margins, provided with small teeth curved toward the apex. The tips of young leaves may have fibers. Over time, it can develop branching at the base of the trunk and form several rosettes.

🌍 Distribution, habitat, and family

Species native to southern Mexico, mainly the state of Oaxaca, with records also in Puebla and Guerrero. It inhabits rocky slopes and dry mountain environments, between approximately 1,800 and 2,350 m above sea level. It grows in xerophytic scrublands and open forests, associated with other plants adapted to drought, such as agaves, yuccas, and nolins. Traditionally, its fibrous leaves have been used to make baskets, mats, and ropes.

Order Asparagales · Family Asparagaceae · Subfamily Nolinoideae.

❄️ Temperature · USDA Zone 8b

Tolerates minimum temperatures of approximately −6 to −7 °C in dry conditions and with excellent drainage. Some established specimens can withstand brief episodes close to −10 °C, but it is not advisable to take that temperature as a safe cultivation limit. Persistent moisture during cold weather increases the risk of rot.

☀️ Lighting

Needs full sun to develop a compact rosette and retain its bluish hues. Open exposure and very bright light are recommended throughout the year. It tolerates intense radiation, heat, and dry environments well. Recommended DLI: 20–30 mol·m⁻²·day⁻¹.

💧 Growth cycle and watering

Summer dormancy. Growth mainly in spring and summer. It is a very drought-resistant plant once established. During active growth, it is recommended to water deeply and let the substrate dry out completely before watering again. In winter, water inputs should be greatly reduced, especially when temperatures are low. It does not tolerate waterlogging or prolonged moisture at the base of the rosette.

🌸 Flowering

It is a dioecious species, with male and female specimens. Adult plants produce a large terminal inflorescence, narrow and branched, which can reach 2–4 m in height. The flowers are small and cream-colored, and appear mainly between June and July. After pollination, female specimens develop winged capsule-shaped fruits containing the seeds. Flowering does not necessarily mean the death of the plant.

🌿 Nutrition

During the active growth period, Desert CHOICE® Succulents is recommended, with a balanced supply of potassium and bioavailable calcium. Potassium promotes water regulation and stress resistance, while calcium contributes to the firmness and consistency of the tissues.

🪴 Pot

40x40 cm gourmet black pot.

This is an inimitable xerophyte grown in Madrid in a technological square pot with a substrate activated with mycorrhizal fungi and biofungicides.