Holly in the snow, also known as Holly, is an evergreen or semi-evergreen dwarf shrub in Rubiaceae. The plant height is less than 2 meters, with many branches, the tender branches are green, slightly hairy, smelly when rubbed, and the old branches are brown with obvious wrinkles. Leaves opposite or clustered on branchlets, oblong or oblong-lanceolate, about 0.7 cm to 1.5 cm long, entire. Leucorrhea or pink purple, solitary or clustered, corolla funnel-shaped. The flowering period is May-June. Drupe is small and spherical.
Snow is mainly distributed in Jiangsu, Zhejiang, Jiangxi, Guangdong, Taiwan Province and other southeastern and central provinces of China. It is also distributed in Japan. Most of them are mountains and rivers. As a subtropical tree species, it likes warm and humid climate conditions and semi-cloudy and semi-sunny, loose and fertile soil with good drainage. Especially suitable for neutral and slightly acidic soils, with weak cold resistance. In winter, the temperature in the greenhouse needs to be above 0℃. Strong ability of germination and tillering, so it is resistant to pruning and easy to shape. Gardens in the south are usually planted in open spaces and bushes under the canopy; In the north, there are many potted plants to watch and spend the winter indoors. It is also a good bonsai material.
Propagation is mainly based on cutting, which can also be divided into plants and layering. The cuttings should be 1-2-year-old branches, which can take root in about 30 days at 20℃ and are easy to survive. Potted plants should be placed in a cool place and transplanted into the sun after 20 days. Plants can be placed outdoors in spring, which requires a certain amount of light. Applying dilute liquid fertilizer every 1 week 1 time can promote strong branches and leaves.
When summer is hot and dry, besides watering every day, clear water should be sprayed on leaves and nearby ground in the morning and evening to cool down and increase air humidity. Plants should be placed under a shade shed and not exposed to strong sunlight for a long time. After autumn, as the temperature drops, the watering amount should be gradually controlled and watered every 2 ~ 3 days. In winter, move into a cold room or indoor room with a temperature not lower than 0℃ for wintering, and water it once every 20 ~ 30 days; If the room temperature is above 15℃ and the leaves are evergreen, water should be poured every 7 days to 10 days, and the air should be moist and sunny. Avoid freezing in severe cold, or you will die easily. Before leaving the house in March every year, change the basin with humus soil and use hoof pads at the bottom of the basin.
There are fewer pests and diseases. Occasionally spraying omethoate 1500 times can kill aphids. The six species in the snow are: (1) sapwood, which is shorter than the original species, with thick leaves, small leaves, dense ends of branchlets and sparse flowers. (2) There are six snow plants in Phnom Penh, with large leaves and narrow Phnom Penh. (3) In double-petal snow, the bud tip is lavender, turns white when flowering, and the flower is heavy and thick. (4) Double shade wood and double flowers.