Cochemiea BOOLII

Cochemiea BOOLII - Bool's cochemiea, Bool's mammillaria, Mammillaria.

Cochemiea is a genus of plants in the cactus family (Cactaceae), comprising about 25 species native to Mexico and the southern regions of the United States.

The genus is represented by plants with cylindrical, often solitary or branching stems covered with spine-bearing areoles. Leaves are reduced to small tubercles. The stems can reach various sizes depending on the species.

Flowering occurs in spring and summer. The flowers are funnel-shaped, symmetrical, up to 7 cm (2.8 in) long and up to 3 cm (1.2 in) in diameter, situated at the apex of the stem. Flower coloration varies from bright pink to red. After flowering, berry-like fruits develop, containing tiny black seeds.

Bool's cochemiea is a miniature cactus with an erect, cylindrical stem, usually solitary, but capable of branching at the base with age. The stem surface is covered with prominent conical tubercles with areoles from which numerous slender white radial spines and several long central spines emerge, often hooked and reddish-brown. The overall coloration of the plant is light green or grey-green, with dense pubescence from the spines.

Flowering occurs in spring and early summer. The flowers are larger than those of most mammillarias, bell-shaped, bright pink or purple, often with a paler center, appearing near the top of the stem. The fruits are oblong, pink or red, containing small seeds typical of the genus.

Pre-sowing treatment is not required. Seeds are sown on the surface of a moistened cactus substrate with the addition of sand, and the container is covered with glass or film. Stable lighting and temperatures around 22-26 °C (72-79 °F) are provided, and daily ventilation is carried out.

Seedlings emerge within 10-20 days. The maximum germination period can exceed 35 days. Pricking out is performed after the first spines appear, when seedlings reach 1-1.5 cm (0.4-0.6 in) in diameter.

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For cultivation, a bright spot with bright diffused light or direct sun is recommended. Under insufficient lighting, elongation of the stem is observed. Optimal temperature in summer is 20-28 °C (68-82 °F), in winter - around 10-15 °C (50-59 °F). Watering is carried out regularly from spring to autumn after the substrate dries out. In winter, watering is restricted to once a month under cool conditions.

A loose, well-drained cactus substrate with additions of sand and crushed brick is used. Repotting is carried out once every 2-3 years in spring by the pot-up method. Fertilizers are applied once a month during active growth using specialized succulent formulations. During the winter period, feeding is not performed.

Shaping is not required. Propagation is carried out by seeds or offsets when available.