The leaves of my flowers have turned yellow, and the flowers have withered

During the growth period of potted flowers, the leaves will turn yellow. There are many reasons for the yellowing of leaves, some are caused by one reason, and some are caused by many reasons. In the process of maintenance, it is necessary to carefully observe and analyze the causes in order to prevent and control them in a targeted manner.

1. Water yellow. Leaf yellowing caused by long-term watering, manifested in:

The young leaves are yellow and lusterless, the old leaves have no obvious changes, the roots are small yellow-green, the new shoots are not long, they should be watered moderately, the heavy ones can be depotted, and then re-potted after drying the soil in a cool place.

Second, dry yellow. Yellowing of leaves due to lack of water or too little watering. The old leaves are yellow and shed from the bottom up, but the new leaves generally grow normally. The amount and frequency of watering should be increased appropriately.

3. Fat yellow. Due to excessive fertilization or excessive concentration, the tip of the new leaf appears dry brown, the tip of the old leaf is dry and yellow and falls off, and the general leaf surface is thick and shiny, but most of them are uneven. Fertilizer should be stopped or rinsed with water.

Fourth, lack of fat yellow. Potted flowers are only watered for a long time without watering fertilizer, or do not change pots for many years, the roots are clumped, the plants can not get fertilizer, so that the leaves are yellow, in addition to changing the pot in time, it should be applied diligently with thin fertilizer.

Fifth, burn yellow. Potted flowers and foliage plants that like shade and dampness, such as spider plant, evergreen, one-leaf orchid, hosta arrowroot, etc., such as strong direct sunlight, the leaves often appear yellow tips, should be placed in the shade.

Jasmine is always yellow-leafed? When watering, feed some "material", and the yellow leaves of jasmine turn green.

4 common causes of hydrangea yellow leaves: sunburn, lack of light, high water, pests and diseases.

1. Sunburn: hydrangea likes shade and is not sun-resistant, and the first time to raise hydrangea flower friends have no experience, it may cause sunburn to the leaves if it is exposed to strong light.

Solution: For the hydrangea planted in the ground, pay attention to the shade of the hydrangea in spring, summer and autumn, and do not expose it to the sun. Diffuse light of the hydrangea maintenance of the potted plant. Note: Scattered light refers to sunlight passing through shade nets, window panes, shade trees, etc.

2. Lack of sunlight: Some flower friends know that hydrangea is afraid of the sun, so they protect it from the sun, and the leaves are yellow again, what is going on? Hydrangea is not sun-tolerant, but that doesn't mean it doesn't need the sun, without sunlight it can't photosynthesize, and the leaves will naturally turn yellow.

Solution: When this happens to your hydrangea, move it to the scattered light in time and let it receive light, and the leaves will slowly turn green.

3. Large water: some flower friends raise flowers with too much watering, poor ventilation, and poor permeability of the potting soil, resulting in stuffy roots and yellow leaves, which are yellowed from the leaf veins.

Solution: At this time, do not continue to water, strengthen ventilation; If the pot is a porcelain pot with poor air permeability, it can be replaced with a clay pot or plastic pot.

4. Pests and diseases: The main pests and diseases are powdery mildew and red spiders, which will cause the hydrangea leaves to turn yellow. In the later stages of powdery mildew, white spots appear on the leaves, but in the early stages, yellow spots appear on the hydrangea leaves.

At this time, timely prevention and control will make it easier to control the disease.

Solution: Use benzpyrazole lipid, 1 capsule mixed with 500 ml of water, spray on the front and back of the leaves, spray until the leaves drip water, spray once every 5 days, spray 3 times in a row to see the effect. However, the leaves that have turned yellow have undergone local tissue necrosis and can no longer turn green, so that the newly grown leaves in the later stage are normal.

The reasons for the yellowing and dryness of the leaves of the flowers are long-term watering, lack of water or too little watering, too much fertilization or too large concentration, only watering without fertilizer, etc., due to long-term watering caused by the yellow leaves of the leaves are manifested in the young leaves Yang Huang annihilation is dull, and the old leaves have no obvious changes.

Due to lack of water or less watering, the leaves are yellowed, which is manifested in the old leaves withering and yellowing from bottom to top, but the new leaves generally grow normally. Due to too much fertilization or too much concentration, the top of the new leaves appears dry brown, and the tips of the old leaves are dry and scorched and yellow and fall off, although the general leaf surface is thick and shiny, but most of them are uneven.

The yellowing of the leaves should be a loss of green, and the small black spots are black spots, and the location where you put them is poorly ventilated.

Broad-spectrum fungicidal drugs such as carbendazim can be sprayed on the foliar dorsal surface, and then applied again every week or so, the medicinal effect of night orchid.

According to research, the ancients ate flowers, mostly because of its medicinal effects, night orchid is no exception, it has a sweet taste, warm nature, has the effect of clearing the liver, brightening the eyes, removing the puff, can pull out the poison muscles, strengthen the muscles and bones, dispel wind and dehumidification. Interestingly, it is not common to see night orchids with green pepper-like fruits and ovoid seeds, because they are usually picked and placed in a soup pot while they are still buds.

How to eat night orchids.

For Chinese who love to eat and eat, it is not a strange thing that flowers are included in the dishes. In ancient times, there was the elegance of Qu Yuan's "Autumn Chrysanthemum Falling in the Evening Meal", and now there is the humor of Lao She's "Eating Lotus". For ordinary people, the locust flower steamed buns in the north and the night orchid soup in the south are all flower delicacies that are available to them.

The most famous dish of night orchids is the winter melon cup, which was once known as "a must in Cantonese cuisine", and its rich raw materials and complex practices are comparable to "Buddha jumping over the wall". However, most of the night orchids cooked by ordinary people are used to boil soup or porridge with slices of meat, not only the soup is sweet, but also the flowers are chewy in the mouth. In summer and autumn, the heart is easy to be overwhelmed, and eating some night orchid soup can clear the heart and remove troubles, and it can also clear heat and brighten the purpose.

In addition, night orchids can also be fried with eggs, and a little sprinkled when steaming fish cakes and meatloaf will also make the meat taste pleasant. However, no matter what method is used to cook, because the night orchid itself has a fragrance, it is not suitable to match the ingredients with too strong fragrance, and the lighter the flavor of the melon and vegetables, the more it can highlight the unique charm of the night orchid in cooking.

How to choose a night orchid.

When choosing night orchids, there is also a certain amount of particularity, to pick those flower shape, the bud that is not full, because once it has bloomed, then the aroma must be dispersed, affecting the taste. Be careful when handling ingredients, as if the form is damaged, it will inevitably affect the image of the dish. Night orchids are very delicate, so don't overdo it when cooking, just throw in a few clusters before turning off the heat, cover the pot and simmer for a few minutes, you can force out the elegant sweetness of the flowers.

The night opens and the day closes, and the fragrance is faint under the fence.

The name of the night orchid is derived from the fact that it closes during the day and opens at night, so some people jokingly call it "dinner flower" and "bath flower" (bath time after work). In fact, its scientific name is night fragrant flower, some people call it fragrant cauliflower, spearmint, night orchid and evening primrose, native to South China, although it is a semi-wild vegetable, but it is planted in their own yards by many Cantonese people, because of its branches climbing and spreading, so it can be used as a hedge to repel mosquitoes and insects. The leaves of the night orchid are heart-shaped, thin as silk, and there are fine hairs on the edge of the leaves, and in summer and autumn, small yellow-green flowers in the shape of hanging bells will bloom under the axils of the leaves, and each cluster of twenty or thirty flowers will form a polyumbel inflorescence.