Appearance characteristics of camellia

First, the appearance characteristics:

1, camellia is a shrub or small arboreal plant, with a height of 9 meters, a slightly sharp apex, or a short and blunt apex, a wide wedge-shaped base, a dark green top, lustrous after drying, no hair, a light green bottom and no hair on both sides.

2. The flower is terminal, red, sessile, with 4-8 petals, 2 outer whorls nearly round, nearly free, 2 cm long, hairy outside, 5 inner whorls connected to the base about 8 mm, obovate, 3-4.5 cm long, and hairless; Stamens are 3 whorls, about 2.5-3 cm long, and the outer whorl filaments are connected at the base, and the filament tube is 65438 0.5 cm long.

3. Flowering period:1-April. Cultivated camellia has a long flowering period, which generally starts in September and ends in March of the following year. Flowering1-February.

4. The dead branches and green leaves are beautiful, colorful, with beautiful and diverse patterns, elegant and polymorphic flowers, fragrant smells and various varieties. Most of the flowers are red or reddish, and some are white, mostly double petals.

Second, the growth environment:

1, camellia should be well drained, loose and fertile sandy loam, loess or humus. PH5.5-6.5 is the best. The optimum temperature is between 20-32℃. When the temperature is above 29℃, the growth will stop, and when the temperature is 35℃, the leaves will be anxious, which requires a certain temperature difference. The environmental humidity is above 70%, and most varieties can withstand the low temperature of -8℃ (naturally overwintering, Yuncha is slightly cold-resistant).

2. Camellia is conducive to the development of root hair, and can usually be cultivated with peat, saprophyte, red soil, humus, or the above mixed substrates. Camellia can not shade in spring, autumn and winter, but can shade 50% in summer.

Extended data:

1. In the north, special attention should be paid to acidifying alkaline water before watering flowers. The specific method is to store tap water for 2 days to volatilize chlorine in the water, and then add an appropriate amount of ferrous sulfate (about 0.5% of water). Don't water too much, or the roots will rot easily. Pot soil can't be dry, otherwise the roots will shrink due to water loss, so it is advisable to keep the pot soil and surrounding environment moist. Don't spray water during flowering.

2. Avoid spraying water in rainy days. Don't spray water on the flowers when watering, otherwise it will cause the flowers to rot and shorten the flowering period. Pick the residual flowers in time after the flowers wither. Watering in winter depends on the indoor temperature, usually once every three days. Keep the soil moist, and avoid accumulating water or pouring half water. Tap water should be put in a bucket for a day or two to allow chlorine to evaporate. It is best to put 1% ferrous sulfate in the water to improve the water quality.

3. Camellia is generally put in pots or changed pots, and sufficient base fertilizer is applied at the bottom of pots. In autumn and winter, due to the rapid development of flower buds, decomposed light liquid fertilizer should be poured once a week and topdressing 1 to 2 times of phosphorus and potassium fertilizer. Too much nitrogen fertilizer is easy to scorch the flower buds, and it can be applied less or not after flowering.

4. It is best to apply thin alum fertilizer and water to avoid applying thick fertilizer. Generally, after germination in spring, dilute fertilizer water is applied 65,438+0 times every 65,438+07 days, phosphorus and potassium fertilizer are applied in summer, and fertilizer can be stopped for about 65,438+0 months in early autumn, then alum fertilizer water is applied before flowering, and quick-acting phosphorus and potassium fertilizer is applied when flowering, so that the flowers are bright in color and have a long flowering period.

References:

Baidu encyclopedia-camellia