How to Grow the Succulent "Light Bulb"? Latest Care Methods Explained in Detail

The succulent "Light Bulb" is a succulent plant of the genus Conophytum in the family Aizoaceae. It is semi-transparent; under direct light you can see that it is semi-transparent, glowing with a faint reddish sheen. Because the plant is crystal clear and looks sparkling, it is named for its resemblance to a light bulb. Also, because its shape is very much like Mount Fuji in Japan, it has the alternate name “Mount Fuji”. It is very charming and suitable for growing in a small pot, to be admired carefully in leisure time and to appreciate its unique charm.

Morphological Characteristics of the Succulent Light Bulb

The epidermis of the succulent Light Bulb is bright green and semi-transparent. During the summer dormancy period, in an environment with sufficient light, the epidermis turns red. The flowers are large, pale purplish-red, with a white center, blooming in spring or autumn. The flowers usually open during the day in clear weather and close at night. If the growing environment has insufficient light or there is rainy weather, it is difficult for it to bloom. The plant has no stem and is generally single-headed, occasionally double-headed, and even 3-headed or 4-headed clustered plants. The fleshy leaves are hemispherical, with a single head 2.5-4 cm in diameter or larger.

Growth Habits of the Succulent Light Bulb

The growth habits of the succulent Light Bulb are very peculiar. Each year in autumn the plant begins to grow, and in winter and spring the plant develops a new plant inside its body. Generally, each plant can only develop 1 new head inside, and occasionally it can also split heads, changing from 1 head into two heads. Later, as the plant grows, the new head inside gradually swells, and the old leaves gradually become thinner and shrink, wrapping around the outside of the new head like a layer of kraft paper. In the hot summer, the Light Bulb enters dormancy. Although the dried old leaves wrapping the outside do not look attractive, they can block the damage to the young plant from the strong ultraviolet rays of summer and absorb moisture from the humid air, playing an important protective role for the new plant, so do not easily peel them off. By autumn, as the new plant grows further, the kraft-paper-like old leaves will gradually shed, restoring its crystal-clear state.

Propagation Methods of the Succulent Light Bulb

The succulent Light Bulb is commonly propagated by sowing, carried out in autumn. Because the seeds are very small, after sowing they must be covered with a piece of glass. When watering, the “seep-water” method should be used: place the flower pot in a basin containing water so that water slowly seeps through the drainage hole at the bottom of the pot to moisten the soil. This method is also used for watering during the seedling stage. Newly emerged Light Bulbs often lean crookedly, with their roots exposed outside the soil. A toothpick, tweezers or other small tool can be used to cover the exposed roots with soil and straighten the fallen plants.

Cultivation Methods for the Succulent Light Bulb

1. Temperature and light: Although the Light Bulb likes a sunny, cool and dry environment, it is not tolerant of strong sun, so shade must be provided in summer.

2. Water management: It is drought-tolerant and afraid of waterlogging. Because the whole summer is a dormancy period, give only a small amount of water; too much will cause rot.

3. Growing medium: For the potting soil, generally use cinder mixed with a small amount of peat, also mixed with a small amount of akadama and orchid stone, with granular river sand spread on the surface. The growing medium should mainly be permeable to water and air.

Note: Although the outer old leaves are not very attractive, the old leaves effectively block damage to the young plant from the scorching sun and can absorb moisture from the humid air, providing a moist environment for the young plant. They must not be peeled off at will. Because the seeds of the succulent Light Bulb are too small, after sowing they should be covered with a piece of glass, and when watering, water should be seeped in gently.