The genus Haworthia has 80-90 species, native to southern Africa. The name Haworthia comes from the famous Adrian Hardy Haworth, specialist in succulent plants. It is, in fact, a perennial succulent, formed by a narrow rosette of fleshy leaves, usually triangular, thick, green, brown or greyish, depending on the species. Some species have white tubercles or pale streaks, some then have a particular shape, such as H. truncata, which has short spatula-shaped leaves.
Many species of Haworthia tend to produce numerous basal buds, making the plant a wallpaper; usually each single rosette of leaves is kept within a small size: about 15-20 cm in diameter, for as many of maximum height. In summer, from the center of the leaves develops a long arched stem, very thin, on which bloom some bell-shaped flowers of a soft color, lilac or pink.
This type of plant prefers predominantly sunny exposure, although, in summer and especially in the hottest hours, it is better to avoid direct exposure to sunlight. The Haworthia does not bear very low temperatures, for this reason in the coldest periods of the year is good to withdraw the plant in very bright rooms and maintain a temperature that does not go below 8-10 ° C.
Watering: from March to October water regularly, wetting the soil well, and waiting for it to dry up perfectly between one watering and the other; from mid-July to mid-August usually these plants have a period of resting period, during which it is good to water sporadically, to prevent the development of root rot; from October to the following spring water sparingly, keeping the soil mainly dry.
The methods for propagating this plant are different: by division, by sowing and by cutting; for the suckering species, we prefer the propagation by division, removing the suckers from the mother plant and repotting them individually. Often, the rupture of the stem carrying the flowers causes the development of a small rosette of leaves, from which a new plant will originate.
It has erect stems, which can reach up to 10-12 cm, very thick blue-green leaves, which are facing upwards and on the back have white streaks.
Plant that reaches large size, formed by a multitude of rosettes.
The rosettes are formed by very lanceolate and pointed leaves, they are not very intense green, with a fairly regular fairing on the back.
Plant having groups of convex leaves (small boats type), very sharp, of blue-green colour, not very long, 4 cm, with darker striae.
Very similar to the previous one, but with longer and thicker leaves.
Haworthia arachnoidea: Haworthia Fasciata
Leaves up to 10 -12 cm long quite tapered; the apex of the leaves and pointed. On the back of the leaf there are white transversal lines.