Why is camellia cultivated in weakly alkaline humus

Camellia grows at a temperature between 20 and 25, stops growing when it is above 29, and the leaves will be scorched at 35. A certain temperature difference is required. The ambient humidity is more than 60%, and most varieties can tolerate -8 low temperature (natural wintering, cloud tea is slightly not cold-resistant), and can generally overwinter naturally in the area south of the Huai River.

Camellia cultivation soil should be acidic and require good air permeability. Eli root hair development and can usually be cultivated with peat, saprosh, laterite, humus, or a mixture of above. Camellia requires stronger light than rhododendrons, spring, autumn and winter can be shaded, and 50% shading can be used in summer.

Camellia usually needs to be watered with neutral or acidic surface water, watering to master the dry and wet, dry and then watered, watered thoroughly, but pay attention not to be too dry. Generally, at the end of spring, before budding, water should be appropriately withheld, so as to facilitate the transformation to reproductive growth, and the water should not be cut off before flowering. However, it should be noted that if it grows in the general living room, it is easy to die.

Usual fertilization can be used -30cm pots) 10 g pots;2 grams of compound fertilizer in pots;You can also use urea plus potassium dihydrogen phosphate, once every 10-20 days, and the above fertilizers should be used in rotation. If the yellowing of iron deficiency occurs in new shoots, ferrous sulfate can be poured once a week until it recovers. To prevent yellowing and root rot in the north, ferrous sulfate should be applied every 15-30 days.

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Camellia is native to the south and should be acidic soil, and it is definitely not good to grow when cultivated with weak alkaline humus.

Place of Placement:

Camellia should be placed in a warm, moist, ventilated and light-permeable place. In spring, it should be sunny, and in summer, it is advisable to pay attention to shade, avoid direct sunlight and western sun, if it is placed on the balcony, it is often accidentally sunburned.

Watering: The cultivation of camellia bonsai should keep the soil moist, but it should not be too wet, to prevent it from being dry and wet. Generally, it can be properly watered in spring to facilitate germination and shootingIn summer, insist on watering in the morning and evening, it is best to spray foliar water to make the leaves wet, do not use rapid water to water directly, full irrigation, should not water hot water, avoid watering at high temperature around noon;Watering in autumn should be moderate;In winter, it is advisable to water around noon, and you can spray water every two or three days.

Fertilization: Camellia likes fertilizer, when potting, it is necessary to pay attention to putting base fertilizer in the pot soil, mainly phosphorus and potassium fertilizer, and the fertilizer includes bone meal, hair, chicken feathers, chaff ash, poultry manure and superphosphate and other substances after decay. Usually not too much fertilizer, generally in April and May after flowering 2 3 times of thin fertilizer water, autumn in November to apply a slightly thicker water fertilizer.

The specific gravity of phosphate fertilizer should be slightly larger to promote the colorful flowers.

Pruning: The growth of camellia is slow, it is not advisable to prune excessively, and generally cut off the long branches that affect the shape of the tree, as well as diseased and insect branches and weak branches. If there are too many flower buds on each branch, only 1 2 flowers can be thinned and kept at a certain distance, and the rest should be removed as soon as possible to avoid consuming nutrients.

In addition, it is necessary to remove the flowers that are close to withering in time, which can also reduce nutrient consumption, so as to facilitate the healthy growth of the plant and the formation of new flower buds.

Turning pots: Camellia bonsai can be turned over once in 1 or 2 years, and the new pot should be larger than the old pot No. 1 to facilitate the stretching and development of the root system. The repotting time should be in April in spring, and it can also be in autumn. Combined with soil exchange, part of the old soil is appropriately removed, replaced with fertile and loose new soil, and combined with the placement of base fertilizer.

Pest Control:

The diseases of camellia mainly include black mold, anthracnose, etc., which can be sprayed with Bordeaux liquid for prevention and control. The main insect pests are tea shoot moths, and the control method can cut off the insect shoots, which is generally carried out in April and June.

Soil and precautions for raising camellia in the north.

The main reason is that the pH of this soil meets the needs of most plants, and it is also very loose and breathable, and it also has a good ability to retain water and nutrients.