Haageocereus KAGENEKII

Haageocereus KAGENEKII - Kagenek's haageocereus, Golden-spined haageocereus, Haageocereus CHRYSACANTHUS.

Haageocereus is a genus of South American cacti in the family Cactaceae. Representatives of the genus are associated primarily with arid regions of Peru and neighboring areas, where the plants are adapted to bright sun, poor mineral soils, scarce precipitation, and sharp fluctuations between daytime heating and cooler nights.

The plants usually develop as bushy or columnar cacti with erect, ascending, or partially decumbent shoots. The stems are ribbed, green or gray-green, with areoles from which spines develop. In different species and subspecies, spines may vary in length, density, coloration, and growth direction.

Flowering in haageocereus usually occurs on mature plants with good light, dry overwintering, and active summer growth. The flowers are tubular or funnel-shaped, appearing closer to the upper part of the shoots. After pollination, fruits with small seeds can form.

Golden-spined haageocereus is a very elegant representative of the genus, notable for its golden spines. Its height is about 1 m (3.3 ft), and it forms branches from the very base. Dense lateral spines and longer central ones create impressive golden "heads" at the tops of the stems. The flowers are 5 cm (2 in) across and 6 cm (2.4 in) long. The perianth sepals are green, and the petals are greenish-red. The large, greenish-red, spherical fruit is 4 cm (1.6 in) in diameter.

This species can be found north of the Peruvian capital of Lima. It grows on bare rocky sites. Thanks to its hardiness in natural conditions, the cactus is easy to cultivate. The plants look elegant even at a very young age.

Haageocereus is propagated by seeds and lateral shoots, if they form. Seeds are small. The seed method is used to obtain plants with natural growth form and is well suited for collection cultivation. Sowing is carried out in spring or at the beginning of the warm season, or year-round if bright lighting, bottom heat, and stable warmth can be provided.

Before sowing, the substrate can be moistened with a weak solution of potassium permanganate or biofungicide with the addition of a growth stimulant. A light, sterile substrate dominated by mineral components, perlite, and fine washed sand is used for sowing.

Seeds are distributed over the surface of the moistened substrate and lightly pressed in, without deep burying. On top, they may be sprinkled with the thinnest layer of sifted sand or left almost on the surface. Sowing is carefully moistened with a spray bottle, placed in a mini-greenhouse, and kept at a temperature of about 22-28 °C (72-82 °F) in bright indirect light. The mini-greenhouse is ventilated daily, and the substrate is kept slightly moist without waterlogging.

The standard germination period is about 7-21 days, the minimum is about 5-7 days, and the maximum is up to 30-40 days. After seedlings emerge, the covering is removed gradually, and seedlings are kept in a very bright location with cautious watering and good ventilation. Pricking out is carried out after the formation of the first noticeable spines and strengthening of the seedlings; young plants are transplanted into individual small pots with a well-drained mineral mix.

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For cultivation, the brightest possible location with several hours of direct sun per day is chosen. Haageocereus enjoys bright lighting, dry air, and good ventilation. With insufficient light, shoots stretch out, spines become weaker, and the plant loses its compact form.

The temperature during the active growth period is maintained around 22-32 °C (72-90 °F). In summer, the plant tolerates heat well with dry air and cautious watering. In winter, cooler and drier maintenance at a temperature around 8-14 °C (46-57 °F) is desirable, provided a bright location and protection from dampness can be ensured. With warm wintering, watering is drastically reduced to avoid triggering weak, stretched growth.

Watering is carried out moderately, only after the substrate has dried out thoroughly. During the active growth period, the plant is watered in small portions, without constant wetness at the roots. In autumn, watering is gradually reduced; in winter, it is carried out rarely or almost completely suspended under cool conditions. Stagnant water is unacceptable, especially during the cold period.

For planting, a very loose mineral substrate for cacti with a large proportion of aerating components is used. Coarse sand, fine gravel, pumice, zeolite, brick chips, or perlite are added to the mix. Generous drainage is placed at the bottom of the pot, and a container with mandatory water drainage holes is chosen.

Fertilizer is applied only during the active growth period, approximately once every 4-6 weeks, using a weak solution of fertilizer for cacti and succulents. An excess of nitrogen is undesirable, as it makes tissues soft and less resistant to rot. Repotting is carried out rarely, as the pot fills with roots, with mandatory drying after repotting before the first watering.