Haworthia tarantula Origin and Habitat: Endemic of a very small area only around 20 x 20 m near the Kasouga River in the proximity of the habitat of Hawothia coarctata and Haworthia cymbiformis.
Haworthia tarantula Description: Haworthia tarantula is the beauty among others “cooperi”” with leaves covered with white hairs. It is a slow growing species that may form clumps.
Rosettes: Stemless that in nature have only few leaves and remain quite small. In cultivation they can grow much bigger (which is true with most succulent plants, of course). This species tends to remain solitary though may cluster slowly in time in cultivation.
Leaves: Fat, windowed, covered in silvery-white fuzz with soft teeth and tips. (similar to Haworthia pubescens).
Cultivation and Propagation: There’s no difference in cultivation from usual plants of this type. Though it grows more slowly.
Exposure: Needs light shade to shade.
Watering needs: Regular water (They enjoy a little water during winter period too) but do not overwater as they will most likely wind up with root rot, and do not water again until dry!
Hardyness: Hardy to to -5°C (or less if dry).
Notes: This plant is a choice example of the window-leaf ( fenestrate leaf) adaptation found in many Haworthias, Mesembreanthemums and Peperomias, the translucent ‘glassy’ windowed apices allow light into the internal plant body rich in chlorophyll-bearing layers of cells, thereby providing a much larger assimilation area.
The windows greatly increase the photosynthesizing area by allowing light into the centres of leaves and at the same time avoiding water loss.