"Flowers in the West" rhododendron
If a pot of azaleas, you say you can't get its beauty, then you try to go to the place where the rhododendrons bloom in the spring and summer, what lavender fields, what rape flowers and flowers, in front of the mountains and mountains, will be eclipsed...
The well-known rhododendron is also known as Yingshan Red, Mountain Pomegranate, Mountain Heel, Red Heel, Jindalai, Mountain Crane.
Rhododendron is a traditional famous flower in China, with a very long history of potted plants, and the varieties cultivated are also very rich.
Potted plants or shaped, cultivated into a variety of pile scenery, flowers and leaves, beautiful and colorful, strong germination, resistant to pruning, root pile peculiar, is an excellent bonsai material.
Among the flowers in China and the world, rhododendron enjoys a high reputation, and some people call it "flowers in the West".
The rhododendrons that roam the mountains are fathers by the sky, the mother by the earth, and the aura of heaven and earth to nourish, which is bound to be infinitely young and naturally beautiful.
Balcony potted azaleas, you are also a father, there is a mother, hand in hand to change the potting soil, watering fertilizer again and again, oh, just hope they can be beautiful natural growth is good, the result of the rhododendron potted leaves not only appear "yellow face", but also appear "small wrinkles" ...
Oh, we're too hard for balcony growers!
In this article, let's talk about how to avoid the cultivation essentials of potted rhododendron leaf yellow and zoom.
Make good use of a thing, medicine to get rid of the disease
Ferrous sulfate is an inorganic chemical fertilizer that promotes chlorophyll synthesis in flowers and trees.
In general, ferrous sulfate is suitable for yellowing or even zooming of leaves caused by the weakening of acidity in pot soil in rhododendron bonsai.
There are two methods of administering ferrous sulfate
Method 1: Root application
Dissolve ferrous sulfate in fertilizer or water, directly watered, the solution concentration can be mastered at 1 to 2%.
Ferrous sulfate can also be placed directly on the pot topsoil and gradually osmotically absorbed when watered.
Director tip: Generally 20 cm flower pot, the first time to put 1 gram can be.
Method 2: Fertilize outside the root
Ferrous sulfate can be dissolved in water, and the stem and leaf fertilization can be carried out with a sprayer, which is absorbed through the ventilation holes on the leaf surface and directly plays a fertilizer effect.
When spraying, it is best to carry out in the morning and evening on a rainy day, and the dosage can be 0.1% to 0.3%.
Essentials of rhododendron pot cultivation
Since we have talked about raising rhododendrons, we must further talk about the cultivation essentials of rhododendrons, so that the Taiwan friends who raise rhododendrons at home can water and fertilize with half the effort.
【Pot Selection】
Potted rhododendrons need to choose oval, rectangular or round purple sand clay pots or glazed clay pots.
The color of the pot should be slightly darker, which contrasts with the flower color; if the rhododendron shape is cliff-like, the deep thousand barrel basin should be selected; if the rhododendron root shape is a root type, a slightly lighter oval pot can be selected.
【Soil】
Rhododendrons prefer loose, permeable, well-drained, humus-rich acidic soils with a PH value of 5.0 to 6.0.
Key point: Raising rhododendrons, such as clay or alkaline soil, is difficult to live.
In particular, the summer crane and the ocean crane must be mountainous.
The mountain soil also needs to be transformed, and three kinds of prepared culture soils are usually used.
Recipe 1
7 parts of mountain soil, 1 part of dry moss grass chips, 2 parts of dry saprophyll soil, and 1 part of dry fertilizer are mixed and prepared.
Recipe 2
3 parts of mountain bark soil (topsoil), 3 parts of horse manure, 3 parts of deciduous weeds, and 1 part of human feces and urine are stacked in layers, and after 1 to 2 years, they are sieved and prepared.
Recipe 3
3 parts of mountain soil, 3 parts of saprophyll soil, 4 parts of garden soil, 2 parts of sand soil are mixed, and 50 grams of sesame sauce residue and bone meal are added to each pot.
【Fertilization】
Rhododendron flowers are more fertile, generally using decomposed cake fertilizer, fish meal, broad beans or purple cloud ying and other decayed watering, avoid using human feces and urine.
After leaving the room until before the buds spit out flowers, apply a thin fertilizer every 10 days, with a concentration of 15%, a total of 2 to 3 times, to promote the old leaves to turn green and germinate new roots.
After the flowers are removed, in order to promote the growth of branches and leaves, fertilize 5 to 6 times from mid-May to early July.
If it rains continuously, dry fertilizer can be applied.
Before entering the room, before the growth of rhododendrons is about to stop, fertilization should be applied 1 to 2 times.
【Watering】
It is best to use rainwater to water rhododendrons, followed by river water and pond water.
If you use tap water, you should store the water for 1 to 2 days, let the chlorine volatilize and then use.
Add 0.2% ferrous sulfate to the growing season and water every 7 to 10 days, using it frequently to ensure that the soil is acidic.
【Tumbling】
Rhododendron bonsai should be changed every 2 to 3 years before leaving the house.
Prepare a new pot, cover the bottom hole of the pot with tiles, pad 3 cm thick cinder as a drainage layer, fill in a layer of culture, and then knock out the plant, remove the old soil and decaying roots, protect the weak new roots, implant the new pot, and fill the soil mound.
After changing the pot, the bonsai should avoid strong light, temporarily do not water, keep the soil moist, can avoid injury and broken root infection, is conducive to the re-emergence of new roots, so that the plant can be restored faster.
When the air is dry, it can be sprayed with water to moisturize, and after 48 hours, it is soaked once by the immersion method and permeable, and it is normally maintained after removal.
【Trim】
Rhododendrons grow slowly and are generally allowed to grow naturally, only after flowering.
Pruning requires pruning to remove long branches, sick and weak branches, deformed branches, and damaged branches.
【Reproduction】
Rhododendrons can be propagated by sowing seeds, cuttings, grafting, and dividing.
cuttage
The time is better than the rainy season, the cuttings are made of the branches of the year, and after the new shoots are formed, the cuttings are cut at the base, which is the easiest to survive.
If you use old branches to cut cuttings, the cuttings are difficult to root.
sow
Pot sowing can be used, the potting soil should be breathable and water-permeable, it is more appropriate to mix the appropriate amount of sandy soil with mountain mud or saprophyll soil, the pot surface is covered with a layer of fine soil, the seeds are sown on it, no longer covered, the pot mouth is covered with glass, the humidity is maintained, after about 3 to 4 weeks, the seedlings can germinate, then remove the glass, accept the light, spray the water in an appropriate amount, and then divide the seedlings when they send out 3 to 4 leaves.
If you choose wild rhododendron old piles to make bonsai, it can be rapidly prototyping as long as 3 to 5 years.
pluck
The time can be from the beginning of March to the beginning of March and before the flower thanks, or from October to November, but the pile heads excavated in March are easy to survive.
When excavating, the pile head should retain more whisker roots, truncate the main root, and remove the branches that are not related to the shape, so as to bring the mountain mud and can be directly potted.
Rhododendron "beauty" trick
First: cover with moss
Rhododendron likes to be wet and avoids waterlogging, and should be covered with moss on the pot surface after potting to increase moisturizing ability.
After the basin, it should be placed in a place where the scattered light is strong and not directly exposed. After half a month, the stump will germinate many buds and sprout new branches. All new branches should be retained to promote rooting and summer.
After the autumn cools, all the branches that have nothing to do with the shape can be cut off.
Second: Adjust the lighting
During the flowering period of rhododendrons, there is a short period of shade at noon, with a light transmittance of 60% and during the rainy period from June to early July, it is the rhododendron flower leafing and branching period, and as much sunlight as possible should be seen.
However, in the event of strong sunlight, 9 a.m. to 4 p.m. should also be shaded to prevent burning new leaves.
From mid-July to early September, shade is provided from 8:00 a.m. to 5:00 p.m. every day to prevent the sun from shining.
The autumn growth period after September can shorten the shade time, generally from 10 a.m. to 4 p.m. shade, after October should see more sunshine, and then plastic surgery.
Third: disease and pest prevention
Rhododendrons are susceptible to red spiders, military insects, etc., and can be sprayed with Leguo dilution.
If many dark spots appear on the foliage, The Bordeaux liquid should be sprayed in time.
The method is very detailed, the skills are in place, it depends on how much Taiwanese friends can use and practice after reading this article.
Successful "beauty" of azaleas begins with a detailed cultivation technique that Taiwanese friends click to collect.
After careful observation after cultivation, we can discover the mystery of plant growth and live up to the hard work and effort.
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