This is done exclusively from seed. It is possible to root the plant from a truncheon cutting. It is advisable to let the plant dry out for a few weeks - this reduces the sap levels and ensures easy rooting. The severed end can be dusted with flowers of sulphur to prevent fungal spores rotting the plant at a later stage.

Seeds are produced in late February and early March of each year (southern hemisphere). The seed capsules tend to go a pale green and start to split when they are ready for harvesting. The flat, brown seeds are surrounded by a thin, transparent membrane which assists with wind dispersal. The seeds are blown some distance from the parent plant and usually germinate under the protection of a nurse plant.

To grow in a seed tray, use sandy loam with a small amount of very well-rotted, sieved compost. The seeds should be sown not deeper than 0.5 cm. Do not crowd too many seeds into a seed pan, this can lead to damping off when they start germinating. The sowing medium must be well drained. Do not over-water: too much water at a time when the seeds are germinating will ROT them. Water four times a week under warm conditions of 28°C or above. During the winter months only water once every two weeks. Move to a sunny location for the initial germination, especially during the cold winter months.

Sow the seeds in April or May (southern hemisphere). By April of the following year the plants should be strong enough to be planted in a small, plastic, 9 cm pot. Use a well-drained potting medium.

Aloe comosa once established will grow quickly. These plants respond well to feeding with organic products. Please bear in mind when planting these plants out in the garden to give them enough space to develop fully.