this genus includes about three hundred species of succulent plants, native to southern Africa; there are species which can reach conspicuous dimensions, as very small species. The forms can be the most different; for instance, C. ovata is a small tree, with roundish top, in container can develop up to 70-80 cm, with fleshy stem and small oval leaves.
In late autumn many species produce small clusters of white or yellowish flowers; there are also cultivars and hybrids, with extravagant forms or particular colours.
is suitable for living in greenhouses and apartments, but in warmer areas it can also be grown outdoors, in a very bright and sunny place. The soil, in this last case, must be loose and well drained, composed for the 2/3 of mould and for the 1/3 of sand or gravel. If cultivated in pot, it is good to remember that the size of this must be commensurate with the size of the plant. Every two years it is necessary to proceed with the repotting.
Crassulae with a branched development sometimes need pruning, in order to keep the foliage more compact and to avoid that the heavy leaves cause the branches to arc. Every 30-35 days it is advisable to provide the plants with a specific fertilizer for succulent plants, mixed with the water of the watering, which must be quite abundant from March to October, less frequent during the cold months, always waiting for the soil to be perfectly dry between one watering and the other.
- I have a large Crassula that I keep on the gallery of the condominium staircase in front of the French window. In summer, the upper half of the door stays open. and the sunlight reaches it.
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- Crassulaceae are succulent plants, native to Africa, which produce spatula-shaped foliage, slightly fleshy, and thick stems, which although still herbaceous, take on a brutish coloring.
Multiplication can be by leaf cuttings (spring or summer period) or by stem cuttings (the length of which must be between 5/8 cm; period: May-July), if the species has a particularly developed stem, as in the case of the crassula arborescens.
Pests and Diseases
The most common disease, especially for the caespitose species, is the grey mould, which can appear due to poor drainage or too abundant watering and which appears as a yellowish patina on the leaves. An excess of water can also cause the rottenness of the roots, after which the apexes dry up and the plant dies. They are often affected by cochineals and mites.
Jade grass, Ears of elephant – Crassula: Other species of crassula
This species is of medium size; the height, in fact, can be, at the most, of about 60/65 cm. Flowering takes place also in winter and the flowers are white and star-shaped. The leaves, grouped two by two at the base, are round and fleshy, of a dark green colour, even if at the margins we can distinguish lighter shades.
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