How to grow azaleas well?
The core content of this article: How to grow azaleas well and the reasons why they cannot be grown well. Pay attention to these 4 points in terms of pet care. Let's learn about it together below.
Azaleas, also known as rhododendrons, bloom in spring with colorful flowers, bright red as fire, and various postures, like fluttering colorful flags, which are very popular. Azaleas are beautiful, so many flower enthusiasts also like to plant them in their own gardens. However, many people have difficulty growing azaleas, and they often find them drying up and dying for no apparent reason, which can be quite frustrating. What exactly causes azaleas to be difficult to grow? Here is a brief introduction.
One, the growing environment of azaleas must be in an alkaline environment.
The soil for cultivating azaleas must be slightly alkaline or neutral to ensure normal growth of the azaleas. In an acidic environment, azaleas cannot survive, especially for friends in the north, as the soil in the north is acidic. In this case, ferrous sulfate can be used for irrigation to maintain an alkaline environment conducive to growth and survival. Therefore, we should not use domestic sewage such as salt water, oil water, or soup for irrigation, and strict attention should be paid to acidity and alkalinity to grow azaleas well.
Two, excessive watering can lead to积水 and root rot and death.
Many people do not pay attention to the method of watering when growing flowers. Being impatient, they often like to water their plants every few days. Over time, if the soil's water content exceeds 80% for 15 days, the roots of the azaleas will gradually rot, and eventually, the leaves will fall and the plant will die. Therefore, it is enough to keep the soil moist, and the soil should be loose and not prone to compaction, with good permeability.
Three, it is necessary to thin the roots of azaleas at regular intervals.
The roots of azaleas are fine and in a filigree shape. For potted azaleas, the roots will eventually fill the pot, preventing the absorption of water and nutrients. This is why azaleas may suddenly die. Many people find it strange that their azaleas were growing well with no apparent problems, but suddenly died. This is due to the lack of timely root thinning. It is recommended to thin the roots of potted azaleas once a year, cutting away the rotten and old roots around the roots and cutting off about 5 centimeters around the root zone, allowing the roots to be more than 7 centimeters away from the edge of the pot, providing enough space for root development. This way, the azaleas will grow well and the flowers will be bright. Generally, there is no need to thin the roots in the first three years after planting, and it can be done once a year afterward.
How to grow azaleas well?
Four, fertilization should be reasonable and scientific.
Top-dressing with fertilizer can better promote the growth of azaleas, but it is important to use ripe fertilizer and remember to apply thin and frequent fertilization. You can use nitrogen-containing compound fertilizers or farm manures such as chicken manure or sheep manure that have been composted for more than a month. During the flowering period, you can spray the leaves with a 1:1000 solution of potassium dihydrogen phosphate. Fertilizing once a month is about right, and the effect is very good. It is best to choose the season for fertilizing in late April and early October, avoiding fertilizing during the hottest months of July to September.
The above is the specific content on how to grow azaleas well and the reasons why they cannot be grown well, for everyone's reference and operation in feeding.