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Clivia grandiflora is a famous indoor potted ornamental flower with strong adaptability and high ornamental value, and has become one of the main potted flower varieties in China.

Propagation method: common ramet division and sowing propagation.

1. ramet propagation: axillary buds are extracted from axillary leaves of the mother plant, and their asexual propagation ability varies with the age and variety of the plant. General adult plants and common varieties are easy to extract axillary buds. When changing 6-7 leaves in spring, take out the daughter plants around the mother plant. After dividing plants, the wounds of mother plants and daughter plants should be coated with fine furnace dust to prevent bleeding, so that the wounds can be dried quickly and prevent decay. If the root system of the offspring is less, it can be planted with fine sand, and the room temperature is kept at 20-25℃, which is beneficial to the germination and growth of the root system. Older offspring can blossom after 1-2 years of maintenance.

2. Sowing and propagation: Clivia is a cross-pollinated plant. In order to promote seed setting, artificial pollination should be carried out. When the perianth is cracked and the pistil stigma secretes mucus, the pollination effect is the best, usually at 9- 10 in the morning or 1-3 in the afternoon, and pollination is repeated the next day, resulting in high fruit setting rate. It is best to sow in spring, and the optimum temperature for germination is 20-25℃. If the temperature difference is too large, the emergence rate will be affected. If the seeds are sown too early, the seeds will rot and die under the condition of low temperature and high humidity. Generally, after sowing, radicle grows on 10- 15 days, coleoptile grows on 30-40 days, and the first leaf grows on 50 days. After sowing for three months, the seedlings can be transplanted into pots. Seeding seedlings can only blossom after 4-5 years of cultivation.

2. Cultivation management: We should pay attention to the soil used to cultivate Clivia, and the mixed soil of broad-leaved humus soil, coniferous humus soil, culture soil and fine sand is the best, which has the characteristics of looseness and fertility and is conducive to the development of fleshy roots. The optimum growth temperature is 15-25℃. When the temperature is lower than 10℃, the plant grows slowly, and when the temperature exceeds 30℃, the leaves and flowers will grow white. The temperature difference of 65438 00℃ is most beneficial to the growth and development of Clivia. Scattered light is the best in the growth process, which is beneficial to flowering and fruiting. On the contrary, too strong light is not conducive to the growth and development of plants and flowering and fruiting. It is required that the soil is dry and not wet, the air humidity is 70%-80%, the soil is too wet or the relative humidity is too high, and Clivia is easy to get sick. Fertilization should be scientific. Clivia is a fertilizer-loving plant. When changing pots, it is necessary to apply sufficient base fertilizer, and apply fertilizer 1 time every month during the growing period. But be careful not to pollute the leaves when applying fertilizer, and apply phosphorus and potassium fertilizer 1 time before the flower stem. In winter, when Clivia doesn't grow flowers in pseudobulb, it often appears the phenomenon of "pinching arrows". The main reason is that when scape appears, it is affected by low temperature and low soil water content. As long as the water is properly heated and the amount of water is increased during flowering, the phenomenon of "pinching arrows" can be prevented. .