Rhododendron camellia, Chinese name is rhododendron leaf camellia, commonly known as rhododendron red camellia and four seasons rhododendron camellia, the plant is beautiful and peculiar, suitable for potted planting, want to breed successfully to pay attention to the soil, light and temperature requirements. Although the leaves look very similar to azaleas, but there are camellia-like flowers, for the camellia family camellia genus of woody shrubs or small trees, is a close relative of camellia flowers, the market is still relatively rare, the following to introduce to you the breeding method.
<h1 class= "pgc-h-arrow-right" > soil and fertilization requirements</h1>
1. Soil
To keep the soil loose, well-drained, fertile and deep, and require acidic soil, you can also water the flowers with rainwater or a 1:1000 dilution of ferrous sulfate.
2. Fertilize
Fertilizer should not be too much, apply fertilizer in moderation before and after the flowering period, pay attention to the use of thin fertilizer liquid, and need to be cooked fertilizer.
The flowering period is longer, usually from May to February, so the flowering period should be increased. In spring and autumn, compound fertilizer was applied on the soil surface for one month, and an appropriate amount of slow-release fertilizer was applied in summer and winter, and a 1:1000 dilution of potassium dihydrogen phosphate was applied once a week to supplement phosphorus and potassium to prolong flowering.
<h1 class="pgc-h-arrow-right" > second, watering requirements</h1>
Sufficient water is required, but not too much water, the principle is to wet between dry and avoid standing water caused by plant leaves. Increase the amount of watering at high temperatures, about twice a day. Increase the number of watering months from spring to July, reduce the frequency of watering in August, and stop watering from September.
< h1 class = "pgc-h-arrow-right" > three, temperature and light</h1>
The most suitable temperature is 20-30 ° C, which is more resistant to high temperature and cold. Wintering is suitable at 5-10 °C, the temperature is higher than -5 °C to avoid frost damage as much as possible, and areas above 0 °C in winter can also be farmed outdoors.
Rhododendron camellia is very shade-tolerant, but it should also scatter enough light, avoid sun exposure, and shade it when the high temperature sunlight is strong in summer.
<h1 class="pgc-h-arrow-right" >4, air humidity and ventilation</h1>
Suitable air humidity is high, with a humidity of 85% preferred. Ventilation is required to protect against strong winds in case the branches are broken.
<h1 class = "pgc-h-arrow-right" > five, propagation method</h1>
1. Seed propagation
Spring and winter can be sown, choose full seeds, apply a layer of loose fertilizer soil after sowing, and then cover with plastic film or hay to keep warm and moisturize, and fertilize once a month after emergence.
2. Grafting
Grafting is the most effective method of propagating rhododendron camellias, and through artificial grafting, endangered rhododendron camellias in the wild are multiplied. In February-April, it is grafted with camellia oleifera seedlings or large trees as rootstocks.
3. Cuttings
Cuttings are suitable for May to June, September to October, the selection of strong branches, before cuttings to sterilize the cuttings, leaves, buds exposed to the ground cuttings in the seedbed substrate, after cuttings to keep the soil moist, the air cool and moist, should not be more fertilized.
<h1 class= "pgc-h-arrow-right" >6, conservation methods</h1>
1. Pests and diseases
The plant is highly resistant and rarely pests and diseases. It is easy to be infected with leaf spot disease during high temperature and rainy seasons, and it is necessary to spray methyl tolbuzin regularly for prevention and control. Daily pest control can also be used avermectin (broad spectrum), avi high chlorine, etc., spraying sites should be thorough.
2. Prune the leaves
It is necessary to properly cut off sick branches, weak branches, overly dense branches, etc., not too frequently and too heavily. During the gestational bud period, the buds should be appropriately thinned.
3. Change pots and soil
Generally once every 1-2 years, the pot is best to choose a clay pot or tile pot with good air permeability and drainage performance, followed by a green mountain pot and a gallon pot. The potting soil is made of light loam soil made of a mixture of furnace ash residue, alum fertilizer water and triad soil, and a large amount of water is added until the water seeps out, and the rhododendron camellia with roots with soil is moved into the pot.