Propagation
Sow fresh seed during spring and maintain a temperature of 18º to 21º C. (64º to 75º F).

Divide offsets when available during spring and place them in a well drained media and allow to the soil to drain away after watering. Plant out when large enough to handle.

Botanic information
Leaf: The fleshy leathery textured lanceolate to linear leaves are up to 25mm (1 in) wide and vary in colour from glossy dark green to bronze-green and have an acuminate apex that is armed, with a reddish-brown pungent spine that is up to 12mm (½ in) long. The entire margins have coiled white threads that are tipped with a brownish spine and spread in all directions.
Note:
The upper surface has attractive white bud markings that become noticeable as the leaves mature.

Flower: The yellowish-green funnelform flowers have a tube up to 20mm (¾ in) long and recurved tepals that are up to 25mm (1 in) long. The 6-exserted filaments are up to 50mm (2in) long and the anthers are yellow or brownish. The flowers are arranged in a conical spike-like inflorescence that is held above the plant on a slender scape that is up to 3.5m (11 ft) tall and appear from late spring to early summer.

Fruit: The ovoid capsule contains flattened seeds that are viable but the plant is normally repoduced vegetatively.

General cultivation notes
 
Outdoor Cultivation
In warm regions with low humidity, cold and frosty night’s cacti and succulents grow well outdoors. The more humid atmosphere will limit the number of successful species. All of these plants require a very well drained soil and ample sunlight to succeed. Once established these plants require minimal maintenance.

Indoor Cultivation 
Cacti and succulents grow well in glasshouses or near a sunny window with some ventilation tolerating a marked difference in day and night temperatures.
Cacti have a rest period during mid winter when they can be stored in a cooler area with reduced watering, once every two months. Protect the plants from freezing temperatures or extreme direct hot sunlight behind glass. All plants prefer a period outdoors during summer.

Watering
These plants normally have wet and dry periods. Watering should take place during the growing period of the plant. When new growth appears water well once a week and never water if the soil is already wet or place the pot in a saucer of water. Free drainage is essential for a healthy plant and succulents rot easily in moist humid conditions.

Problems related to watering.
Overwatering succulents results in leaves that wilt and discolour or stems that rot.
Under-watering results in a sudden loss of leaves or brown and dry spots on the leaves. The leaves also fall if the water is too cold.

Pots
Both clay and plastic pots are suitable. The pot should fit the plant comfortably and not be too big as it may remain moist, rotting the plant. Water only when the soil has dried.
Re-pot only when necessary in to a slightly larger pot for older plants. If the plants are very large replenish the surface soil and thoroughly water.