What if the leaves of the eight Immortals turn yellow? how to prune the branches and leaves of the eight Immortals?

Hydrangea, also known as hydrangea, is a plant with high ornamental value. The main ornamental point lies in its flowers. Its flowers cluster around the city ball, common in yellow, blue, purple, red, etc., so it attracts many people's breeding. However, when breeding, many people will appear yellow leaves and other phenomena, so how should we solve it?

What about the yellow leaves?

1, 10~20 days to pour a ferrous sulfate solution or potassium dihydrogen phosphate solution to ensure that the soil is acidic. Or directly pour 150~250 times of edible rice vinegar diluent, 3~4 times can be effective. When planting or changing soil, sulfur powder is added to the soil to ensure that the soil is acidic and its validity period can last for 2~3 years. Spring and autumn season luxuriant foliage, 15 days of application of alum fertilizer water, can prevent the occurrence of plant chlorosis, make leaves bright green.

2, too little light, to increase the light time appropriately, slowly can be restored. If the light is too strong, the plant should be moved to a cool and shaded place immediately to avoid direct sunlight. At the same time, water is often sprayed to the leaves and the surrounding environment to increase the air humidity, and gradually the leaves gradually return to green.

3, watering insist on dry watering, watering too much to stop watering, loose soil to dry. Water too little, the soil surface is too dry, you can first pour a small amount of water, half an hour later in the irrigation of water, while spraying water to the branches and leaves.

4, too much fertilizer, should immediately stop fertilization, a small amount of water. Or directly remove the plant from the pot, wash the plant with clean water, change the soil and replant. If too little fertilization causes yellow leaves, timely soil fertilization, 10 days or so a thin liquid fertilizer irrigation, leaves will gradually turn green.

How to trim the eight fairy flowers

1. Remove the heart. After two seedlings survive, grow to 10~15 cm or so, to be removed, the top of the branch will be cut off, so that the axillary buds below the plant can germinate. Then select the upper 4 new branches and remove all the axillary buds below. When the new plant grows to 8~10 cm, repeat the above actions.

2. Cut the old branches. Annuals bloom less often, usually more often on strong biennial branches. In order to ensure continued flowering next year, pruning should be done in time after flowering. After flowering, the old branches will be cut short, retaining 2 to 3 buds to avoid the plant growing too high. After autumn, cut off the top of the new shoots, let the branches stop growing, and let them enter the dormant period. Try it, such a simple cut, beautiful shape, greatly enhance the ornamental value and plant growth will be more vigorous.

How to change the eight flowers?

1. Potted hydrangea usually needs to be turned over and replaced once a year, in early March. The new soil is mixed with leaf soil, garden soil and sandy soil according to the ratio of 4:4:2, and a small amount of cake fertilizer is added.

2. When removing pots, prune the roots of plants. Remove the plant from the pot, shake off the soil at the root, and cut off the rotten roots, rotten roots, and long roots. Put it into fresh soil, compact it, irrigate it thoroughly, and then leave it in the shade for 10 days. After that, move it to the outside for normal curing.

How to apply fertilizer to hydrangea

1, hydrangea fertilization is generally based on organic fertilizer, you can use some compound fertilizer. During the growth period of hydrangea, decomposed thin fertilizer water can be applied once every half month. During this period, fertilization is mainly based on the application of nitrogen fertilizer, such as bean cake, compound fertilizer or human and animal manure, etc., can be used.

2, in order to be able to grow healthily, sometimes it is necessary to apply some foliar fertilizer, spray some urea or ferrous sulfate solution.

3. When the flowering period of hydrangea comes, in order to make it bloom more beautiful flowers, more phosphorus and potassium fertilizers can be applied during the differentiation period of flower buds and the formation period of flower buds, and potassium dihydrogen phosphate can also be sprayed on the leaves. Fertilization needs to stop when flowers are ready to bloom.

The causes of yellowing of hydrangea leaves are generally due to light, moisture, fertilizer, soil, etc., so it is necessary to find out the cause from the root cause and then completely solve it. If hydrangea wants to grow well, it must be pruned in due course. The method of pruning is described in detail above. I hope it can help everyone.