🌱 Morphology

Compact-growing echeveria that tends to form groups with basal rosettes. The rosettes usually measure between 3 and 6 cm in diameter, although they can reach larger sizes in cultivation. Its obovate-spatulate, thick, and upright leaves end in a small reddish tip. The surface displays blue-gray or glaucous green tones, while the underside is speckled with red spots and the margins may turn pink or carmine. The stem is short, brown, and may elongate with age. The surface farina provides a matte finish and helps protect the leaves from solar radiation.

🌍 Distribution, habitat, and family

Species native to Mexico, formally described by Kimnach and Moran in 1994. The Lau 030 form comes from Laguna Encantada, approximately 2 km north of Santiago Juxtlahuaca, in the mountainous region of the Sierra Mixteca Alta, Oaxaca, where Alfred Lau collected it in May 1974. Populations of E. subcorymbosa are also known from other localities in Oaxaca and Puebla. It grows in mountainous and rocky environments with dry periods and relatively cool temperatures. “Lau 030” is a collection number, not a cultivar name.

Family: Crassulaceae. Subfamily: Sempervivoideae. Tribe: Sedeae. Subtribe: Sedinae.

❄️ Temperature — USDA 9b

It is recommended to protect it from severe frosts and, especially, from the combination of low temperatures and wet substrate. As a conservative guideline, it should be kept above 5°C during winter. It can tolerate brief dips close to 0°C if acclimated and completely dry, but it is not recommended to expose it to prolonged frosts in cultivation.

☀️ Lighting

It needs intense light to keep the rosettes compact and accentuate the reddish hues of the leaves. Soft morning sun and very bright exposure are recommended, with gradual adaptation to direct sunlight. In summer, it should be protected from the most intense radiation if temperatures are high. A target DLI PAR of 15–25 mol·m⁻²·day⁻¹ promotes compact growth and attractive coloration. The leaves should not be handled unnecessarily to preserve the farina.

💧 Growth cycle and watering

Opportunistic, with growth mainly during the mild seasons. Development is usually more active in spring and autumn, although it responds to temperatures and water availability. It is recommended to water thoroughly and let the substrate dry out completely before watering again. During intense heat, watering should be reduced if the plant slows its growth; in winter, with low temperatures, it should be kept almost dry. Ventilation and rapid drainage are essential to prevent the roots and clustered rosettes from rotting.

🌸 Flowering

It produces racemose inflorescences with flowers that are relatively large for the size of the plant. The corollas display reddish or orange tones at the bottom and yellow toward the tips. The lower pedicels are longer, so the flowers are arranged in a cluster resembling a corymb, a characteristic that inspired the epithet subcorymbosa. Flowering usually occurs during the warm season, although its timing depends on cultivation conditions and the maturity of the specimen.

🌿 Nutrition

During active growth, Desert CHOICE® Succulents is recommended in moderate doses adapted to the substrate volume. Balanced nutrition promotes the development of healthy roots and firm leaves without stimulating excessively rapid growth. It is recommended to reduce or suspend fertilization during dormancy or when temperatures are extreme.

This is an inimitable xerophyte grown in Madrid in a high-tech square pot with substrate activated with mycorrhizal fungi and biofungicides.
14x14 cm pot