Arisaema TORTUOSUM

Arisaema TORTUOSUM - Whipcord cobra lily, Winding arisaema, Tortuous cobra lily.

Rare plant!

Arisaema is a genus of herbaceous tuberous plants in the Araceae family, comprising about 200 species and distributed across the Himalayas, Southeast Asia, and East Africa.

Plants of this genus are perennials with underground tubers and umbrella-like leaves, often composed of 3-20 leaflets. The peduncle bears a spadix inflorescence surrounded by a spathe of diverse shape and coloration, frequently resembling a hood or a spiral.

Flowering occurs in spring and early summer. The inflorescence is an upright spadix bearing male and female flowers, enveloped by a variegated or striped spathe. Fruits are bright red berries gathered in a dense cluster. Seeds are large, rounded.

Arisaema tortuosum is the most widespread species among the various members. The flowers are green at the start of flowering and dark brown before fading.

Before sowing, seeds are soaked in warm water for 6-8 hours and sown in a loose, moist substrate with added leaf mold and sand. Sowing depth is about 0.5 cm (0.2 in). The container is covered with film, a temperature of 18-22 °C (64-72 °F) is provided, and daily ventilation is conducted.

Germination takes place over 2-4 months. If seedlings have not emerged during this period, the seed container must be placed in a cool, dark location for 3-4 weeks, and then moved back to a warm spot shaded from direct sun.

After the first pair of true leaves forms, pricking out is carried out. Young seedlings are provided with consistent moisture and shade. First flowering occurs after 3-4 years.

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Placement in partial shade or light shade, under tree canopies or near a north-facing wall, is recommended. Lighting must be filtered, without direct midday sun. In summer heat, supplemental air humidity is required.

During the warm season, a temperature of 18-25 °C (64-77 °F) is maintained. In winter, tubers are stored in dry substrate at a temperature of 4-8 °C (39-46 °F). Watering is performed regularly during the active growing season as the soil dries out. During the dormant period, watering is ceased completely.

A loose substrate based on leaf mold, humus, and sand with the addition of perlite is used. Good drainage is mandatory. Repotting is carried out in early spring prior to the start of growth. Young plants are repotted annually.

From April through July, fertilizers for ornamental flowering plants are applied twice a month. From late summer onward, feeding is discontinued. Excessive nutrition can cause stretching and weakening of the tuber.

Sanitary pruning of wilted peduncles and foliage is carried out once vegetation is complete. Propagation is achieved by tuber division or seeds. Cuttings are not used.