Turbinicarpus SCHMIEDICKEANUS 'GRACILIS'

Turbinicarpus SCHMIEDICKEANUS 'GRACILIS' - Slender Schmiedicke's turbinicarpus, Turbinicarpus schmiedickeanus 'Gracilis'.

Turbinicarpus is a genus of dwarf cacti in the family Cactaceae, comprising about 30 species native mainly to central and northeastern Mexico. These cacti are renowned for their slow growth, unusual appearance, and remarkable resilience.

The plants are most often solitary, globose or short-cylindrical, with mamilliform tubercles instead of ribs. The areoles are small, and the spines vary in shape and arrangement, often being decorative. The flowers are large relative to the size of the plant, situated at the apex. The fruits are small and concealed within the stem tissues. The seeds are small and black.

Slender Schmiedicke's turbinicarpus is a subspecies with elongated, graceful shoots up to 4 cm (1.6 in) tall and about 2 cm (0.8 in) in diameter. The surface is covered with spirally arranged tubercles. The areoles are small, with whitish slender spines pressed tightly to the body. The spines are thin, curved, and often slightly twisted.

It blooms in spring. The flowers are white with a pink central midstripe, up to 2.5-3 cm (1.0-1.2 in) in diameter. The fruits are green, tiny, with small rounded black seeds. Flowering is observed even in young plants.

The seeds are pre-soaked for 24 hours in a weak solution of potassium permanganate, then sown superficially in shallow containers with a mineral substrate. The containers are covered with a lid. The germination temperature is 22-26 °C (72-79 °F), with regular ventilation provided.

Seedlings appear in 10-20 days. The maximum germination period is up to 30 days. Pricking out is performed approximately one month later when the first spines appear. Young seedlings require gentle handling and are gradually transitioned to dry conditions, increasing light levels while avoiding sunburn.

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It is placed on south- or southwest-facing windows. Bright sunlight and dry air are required. It is important to ensure good ventilation and protection from rain or overwatering.

During the growing season, a temperature of 22-28 °C (72-82 °F) is maintained. In winter, it is kept at 5-10 °C (41-50 °F) in complete dormancy. Watering is carried out rarely, only after complete drying of the substrate. In winter, it is not watered at all.

A mineral substrate with a calcareous fraction, fine gravel, and sand is used. Repotting is carried out rarely, no more than once every 3-4 years. The root is not buried deeply. Drainage is mandatory.

Fertilizers are applied once every 5-6 weeks with a weak solution of cactus fertilizer. Nitrogen is completely excluded. In the winter period, feedings are not applied.

Formative pruning is not required. Propagation is carried out by seeds. Flowering is possible from 2-3 years of age under favorable conditions. Offsets, if they appear, rarely root.