Pleiospilos MIXED

Pleiospilos MIXED - Pleiospilos mix, RANDOM mixture of seeds of different species and cultivars.

'Living Stones' seed series.

Pleiospilos is a genus of compact succulent plants in the ice plant family (Aizoaceae), comprising several accepted species and natural forms distributed in the Cape Provinces of South Africa. In nature, the plants occur in dry scrub communities, the Karoo, rocky semi-desert habitats, and open mineral soils where rainfall is irregular and most moisture arrives in the form of seasonal rains and dew.

Members of the genus form a very short, nearly hidden stem and one or several pairs of fleshy opposite leaves, partially fused at the base. The leaves are thick, triangular or hemispherical, gray-green, brownish, or bluish-gray, with a rough surface and numerous dark dots. Owing to their resemblance to stones, the plants camouflage among pebbles and rock debris, reducing moisture loss and protecting themselves against animal foraging.

The flowers of Pleiospilos are solitary or few, large relative to plant size, daisy-like, with numerous narrow petals of yellow, orange, or copper hue. The fruit is a dry multi-locular capsule that dehisces when moistened and gradually releases small seeds. The seeds are very small, light brown or brown, dispersed by raindrops and water over the soil surface.

Pleiospilos mix is a high-quality mixture of seeds of many different species and cultivars.

Pleiospilos seeds are very small, light brown or brown, rounded or slightly angular.

Sowing is carried out in spring or early summer, and year-round if stable lighting and temperature control are available. A sterile, fine-textured, well-drained substrate dominated by mineral components is used: fine sand, perlite, pumice, or fine gravel with a small addition of sifted leaf mold. Seeds are distributed on the surface or barely covered with a layer of washed sand up to 1 mm (0.04 in). Sowing is moistened from a spray bottle with a weak solution of potassium permanganate or biofungicide, if necessary with a weak solution of growth stimulant: SUPERthrive, HB-101, Aminozol, Epin, or Zircon. The container is covered with a clear lid or placed in a greenhouse.

Germination is carried out under bright diffused light, without direct sun or overheating. Daytime temperature is maintained around 22-26 °C (72-79 °F), and night temperatures may drop to 15-18 °C (59-64 °F), mimicking natural diurnal fluctuations in arid habitats. The sowing is ventilated daily for 10-15 minutes, condensate is removed, and the surface is kept slightly moist but not wet. Waterlogging is particularly hazardous for seedlings and quickly leads to damping-off.

The first sprouts may appear in 6-7 days, the usual germination period is 10-21 days, and the maximum possible period under cool conditions or uneven germination can reach 4-6 weeks. Following sprout emergence, the cover is gradually propped open and humidity reduced without abrupt desiccation. Seedlings grow slowly and remain very small initially. Pricking out is performed only after noticeable strengthening of the plants, typically at a height of about 8-10 mm (0.3-0.4 in) or after a sturdy pair of true leaves forms, preserving a small plug of substrate around the roots.

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For cultivation, the brightest possible location with several hours of direct sun daily is selected. South-, southeast-, and southwest-facing windows with good air circulation are ideal, and bright supplemental lighting is recommended during overcast periods. The plant is gradually acclimated to direct spring sun after winter to avoid epidermis scorching.

During active growth, the temperature is maintained at 18-25 °C (64-77 °F), and with good ventilation brief rises to 28-30 °C (82-86 °F) are permissible. In heat above 30 °C (86 °F), the plant may temporarily slow its growth, making shading, air movement, and dry mineral soil especially critical. Overwintering is carried out in a bright, cool place at 8-15 °C (46-59 °F). The minimum safe temperature for a container plant is about 5 °C (41 °F) with a completely dry substrate.

Watering is carried out very carefully, considering the seasonal cycle and condition of the leaves. During the growth period, the soil is thoroughly dried out between waterings, and subsequent moistening is performed only after slight wrinkling of the leaves. While a new pair of leaves is forming, watering is sharply curtailed or temporarily suspended so that the old leaf pair gradually transfers moisture to the new one. Excessive watering at this stage causes leaf cracking and rot at the plant base. Water should be soft, settled, at room temperature, and surplus water is drained from the drip tray immediately after watering. Spraying is not required, and high humidity along with stagnant condensation is undesirable.

For planting, a very loose, organo-lean, and quickly drying mineral substrate is used: coarse sand, fine gravel, pumice, perlite, crushed brick, and a small fraction of leaf mold or commercial succulent mix. A thick layer of drainage is placed at the bottom of the container, and the soil surface is topped with mineral mulch to reduce leaf contact with wet substrate. Pots should be sufficiently deep with large drainage holes, as the plant develops an enlarged root system. Repotting is done infrequently, typically every 3-5 years, prior to the onset of active growth and only after the soil has dried out completely.

Feeding is applied very moderately, no more than once every 4-6 weeks during the active growth period, with a weak solution of cactus and succulent fertilizer low in nitrogen. Excess nutrients, especially nitrogen, cause unnatural swelling of tissues, loss of compactness, and increased rot risk. Pruning is not performed. Drying old leaves are not removed mechanically until fully desiccated, as premature removal damages the young leaf pair.