What to do about the yellowing of iris leaves / keep the environment ventilated / control the amount of water

Iris is a highly ornamental plant, the color is generally blue, giving people a fresh and elegant feeling, so it is also loved by many people. However, the yellowing of plants with high ornamental value will also affect the overall aesthetic feeling. What about the yellowing of iris leaves? Next, the editor will take you to learn about it.

What to do about the yellowing of iris leaves / keep the environment ventilated

If you want to know what to do about the yellowing of iris leaves, you must first understand what causes this situation, and only by finding the cause can you deal with it. In the following, there are various causes of this kind of problems and a detailed explanation of the ways to deal with them, which can be understood by interested friends.

1. Fertilize too much

Although fertilizer is an important nutrient in the growth process of iris, it should not be fertilized too frequently, otherwise it is easy to cause soil consolidation and yellowing of leaves. On the specific frequency of fertilization, you can refer to the culture method of iris, here the editor will not introduce too much.

two。 Improper watering

Watering is an essential link in the process of plant culture, and irises are no exception. However, the amount of water still needs to be controlled, if you pour too much or too little, it is possible to cause the leaves to turn yellow. Generally speaking, when the temperature is suitable in spring and autumn, we can choose to water once a week. In summer, the water evaporates quickly, and we can increase it to 3-4 days.

3. Long-term exposure

Although Iris is a kind of light-loving plant, it can not be exposed for a long time, especially when the summer sunshine is too strong, if it is directly exposed to the sun for a long time, it will cause the leaves of Iris to turn yellow and dry. At this time, it is best to move it to the indoor semi-shade to breed, so that it will not be exposed to the sun or lack of sunlight.

4. The environment is not ventilated

When raising irises, they must not be placed in a dark and humid environment, which can easily lead to yellowing of leaves. It is best to breed irises in a more ventilated environment, which will be more conducive to their growth.

5. Diseases and insect pests

In the process of iris culture, if there are diseases and insect pests, it will also lead to yellow leaves, so the usual maintenance must be careful. Of course, if there have been diseases and insect pests, we need to carry out prevention and control, detailed methods can refer to the iris disease and pest control article.

Iris culture method, iris leaves yellowing how to do?

Iris usually refers to Iris, which is a general term for a family of herbaceous flowering plants. The flower consists of a capsule of 6 petal-shaped leaves, 3 or 6 stamens and an ovary surrounded by pedicels. Also known as: purple butterfly, blue butterfly, black kite, flat bamboo flower; distributed in Japan, central China, Siberia, France and almost the whole temperate world. It's the national flower of France. The name "Iris" comes from Greek, meaning rainbow. It indicates that the color of the rainbow in the sky can be seen in the flower color of this genus. Iris has a light and elegant aroma and can be used to make perfume. In our country, it is commonly used to symbolize love and friendship, with a bright future and a bright future.

Culture methods of Iris

1. Soil requirements

Iris will grow poorly in acidic soil, so culture iris should choose clayey loam rich in humus or alkaline soil mixed with calcareous. Before planting, the soil should be fully ploughed and applied with rotten compost and a small amount of bone powder and plant ash as base fertilizer. In addition, irises should not be planted too deep, and the roots should be pressed.

2. Light temperature

The optimum growth temperature of Iris is 15-17 ℃, and it likes the moist environment with plenty of sunshine. However, if the light is too strong, shading should be carried out properly, and if the humidity is too high, the humidity can be reduced by heating and ventilation.

3. Watering

Irises should be watered once after planting, and then they can be watered according to the dry and wet condition of the soil. Generally, the soil is slightly dry. Do not make the soil stagnant or too wet for a long time, so as to avoid rotting roots or diseases. In order to keep the plant beautiful, the leaves of the plant can be cleaned.

4. Fertilization

Rarefied cake fertilizer or compound flower fertilizer should be applied 1-2 times before iris sprouting and growing in spring. It is best to apply liquid fertilizer again after the flowers have withered.

5. Pest control

The most common disease of Iris in the process of culture is soft rot. If soft rot is found in the plant, the plant should be dug up in time, the rotten part should be removed, the planting site should be changed or the pot should be changed for transplanting. The main pest of Iris is bean beetle, which is mainly treated by artificially killing adults and poisoning larvae.

Propagation methods of Iris

Planting method

The soil should be loosened and slightly moist before planting. Then, gently press each bulb with your thumb until most of the bulbs are not in the ground. This method is called "finger pressing". The above series of operations are to protect the corm root cap and germinated roots from damage. In greenhouses and open fields, if Frosts Descent is expected to appear before the plant grows, it is best to plant the bulbs on the seedbed. After planting, cover the seedbed with soil until the ball tip is just covered. This method is also suitable for warm climates to prevent the soil temperature at the bulb from exceeding 20 ℃.

Ramet method

Ramets are carried out in early spring or late autumn, and those cultivated in the open field should first make a planting bed and apply bean cake fertilizer or barnyard manure as base fertilizer; withered branches and old roots should be cut off first, and then the roots should be divided, leaving 2-3 buds per stem as a bunch, with 2-3 bunches as a plant, planting 9-15 plants per square meter, and planting depth to the root of the stem. After planting, water once, then often loosen the soil and weed, if the growth is not good, you should topdressing 2-3 times. Cut off the flower stem after flowering to save nutrients, and cut off the dead leaves after winter. The pot method is the same, but people should be moved to survive the winter without special warming.

The efficacy and function of Iris

1. German Iris is available for viewing.

The florescence of German iris is from May to June every year. The flower shape is very large and there are many colors. The most common ones are purple, lilac and bright purple, as well as attractive aroma. German iris is highly ornamental. It can not only be planted in garden scenic spots for people to watch, but also can be made into potted plants and placed at home.

2. German iris can be made into cut flowers.

The flower stem of German iris is often between 60 and 90 centimeters. When it blooms, it can be cut off to make cut flowers. Whether it is given to friends and placed in a vase, it is a good choice to regulate people's mood and reduce the occurrence of depression.

3. The medicinal effect of Iris germanica

The rhizome of German iris can be used as medicine and can be harvested all the year round. After removing the root, it is sliced and dried. Anti-inflammation is the main effect of German iris after being used as medicine, because there are a lot of flavonoid glycosides in the root of German iris, it is a natural anti-inflammatory substance, after entering the human body, it can be used to treat human sore throat, wind pain and malaria and other diseases.

What is the reason for the yellowing of iris leaves? How should it be solved?

1. the light is too strong

Iris likes to grow in a semi-overcast environment, so most of the time irises are cultivated in greenhouses. If you plant them outdoors, you should also pay attention to the lighting of irises. If the sun is too strong, the leaves of irises will turn yellow. Solution: Iris outdoor cultivation is mainly due to shade problems, when the sun is too strong, it is best to move to provide plenty of sunlight, but not too strong.

2. Overwatering

Iris is not resistant to water stains, so do not water too frequently or too much, the soil is stagnant water or too wet for a long time, resulting in iris leaves yellowing or disease. Solution: irises are watered once a week during the growing period, and the amount of water gradually decreases with the decrease of air temperature. generally speaking, the soil is slightly dry.

3. Too little watering

Excessive watering of irises will cause rotten roots to cause iris leaves to turn yellow, but the growth of irises still needs sufficient water. If irises are not watered enough, the soil will be too dry, which is not conducive to the growth of irises, resulting in yellowing and drying of irises leaves. Solution: irises need to be watered during the growth period to keep the basin soil moist.

4. Excessive fertilization

When the iris fertilizes too much, it will form fertilizer damage, damage the root system and cause the leaves to turn yellow. Solution: Iris plants can be fertilized with base fertilizer before planting, fertilized once a year in autumn, and chemical fertilizer can be applied during the growing period, but not excessive.

The yellowing of iris leaves is mainly caused by light, watering and fertilization, so we should pay attention to maintenance so that we can see blue-purple butterflies flying in the green bushes during the flowering season, rather than blue-purple butterflies running around in a pile of yellowing leaves.

Culture method of Gardenia jasminoides the leaves of Gardenia jasminoides are yellowing and not blooming.

In the flowers, gardenia is undoubtedly one of the more familiar flowers, people like to breed at home, but many people do not know much about the breeding methods of gardenia, resulting in a lot of problems in the breeding process, such as yellowing leaves, not blooming and so on. Today, the editor introduces the breeding methods of gardenia and the reasons why gardenia leaves are yellow and do not blossom.

(gardenia is planted in the courtyard and has a strong ornamental effect.)

Gardenia grows like one in the four seasons, the leaf color is evergreen, the fragrance is elegant when blooming, and the white flowers are white, which is particularly beautiful and very attractive. It is often used for potted plants in courtyards and balconies. It has strong environmental adaptability, can grow well in these places, and has strong decorative and ornamental effects. The following editor will talk about the cultivation methods of gardenia from the various characteristics of gardenia.

First, sour soil culture, gardenia need scattered light, so like sour soil, if the soil is alkaline, it will make gardenia can not absorb iron very well, which has a great impact on the formation of chlorophyll, and further cause flower branches to wither and even die; so the soil must use loose, fertile acid soil, you can also add some substances with such effect.

(gardenia has a good decorative effect)

Second, put in a cool place, gardenia must not be exposed to the scorching sun, otherwise the leaves will be withered and yellow, but it does not mean that it should be put in the whole shade, because it has a certain demand for light, it is best to keep 60% of the light every day, in addition, after entering April, fertilizing should be carried out twice a month.

Third, the air humidity, gardenia like to be wet, so the air can not be too dry, according to expert statistics, if the air humidity is less than 70%, it will affect the normal opening of flowers, but if it is too wet, it will cause rotting roots and yellow leaves, so in addition to normal watering, we should often spray clean water nearby. Another problem we should pay great attention to is that water should not be watered too much, otherwise it will also affect growth. So how to water gardenia?

A, when you see the soil is dry, knock on the flowerpot with your hand. If there is an empty sound, it needs watering. The bottom of the flowerpot starts to leak and stops. It is better to add some eggs and soy milk to the watering water, which is more conducive to growth.

(gardenia in full bloom, different beauty)

Fourth, fertilization tips, gardenia like fertilizer, but can not add too much fertilizer at one time, must be thin fertilizer, must not save trouble, otherwise it will cause thick branches, big leaves, thick green, it will lose its own appreciation effect.

Fifth, temperature requirements, the growth temperature of gardenia can not be too low, because it likes temperature, generally speaking, the temperature of the growing period is 18 to 22 degrees, 5 to 10 degrees in winter, and frostbite if it is less than 10 degrees below zero, which should be paid special attention to in the north.

Sixth, proper pruning, gardenia is very easy to grow luxuriant branches, and cause airtight and disorganized feeling, which will cause nutrition dispersion and poor ornamental, so it is necessary to prune it, it is best to choose three main branches when pruning, and cut off the roots and tillers to sprout new branches at any time, and the branches should be truncated in time after the flowers are shedding, so that new branches will sprout under the cut. When the new branch grows three nodes, it is necessary to pick the heart so as not to grow blindly.

(put the gardenia in the sun.)

Seventh, disease prevention, we usually see four kinds of gardenia diseases:

A, iron deficiency, which is the most common, iron deficiency will cause the formation of chlorophyll, and then make the leaves lose green, when you can use ferrous sulfate water and low concentration of black alum water, three times a month.

B, magnesium deficiency will lead to yellow veins of the lower old leaves of Gardenia jasminoides, so it is necessary to spray with low concentration of magnesium sulfate solution.

C, the soil is too wet or too dry, this can be seen in the third point

D, the sun exposure, this can refer to the second point.

Eighth, breeding methods, Gardenia jasminoides generally have two propagation methods: cutting and striping

A, cuttings, 15 cm long with twigs in the rainy season, planted in the seedbed and rooting in 12 days.

B, in April, biennial branches were selected, which were 2O-25 cm long, buried in the soil and kept moist, about 30 natural roots were separated from the mother plant in summer and planted in the next spring.

The reason for the yellowing of the leaves of mast flower

First, improper moisture

A, too much watering, in this case, the tender leaves of the masts are dark yellow and dull, but there is no obvious change in the old leaves, so just take the flowers out of the pot and put them in a cool, ventilated place and put them back after the soil dries.

B, lack of water, leaf tip or edge withered, dry, old leaves withered and yellow shedding from bottom to top, but the growth of new leaves is relatively normal, at this time should be fully watered and thoroughly watered.

(there are many reasons why gardenia leaves turn yellow.)

Second, improper lighting

A, the light is too strong, the sunrise part of the leaf appears macula, at this time only need to move it to the shade to maintain can be restored, the new leaves will no longer have macula.

B. when there is not enough sunlight, the leaves will turn yellow or even fall off, as long as you put them in the sun to replenish the sun.

Third, improper fertilization

A, excessive fertilization, mainly manifested in the brown appearance at the tip of the new leaves, the thickening and dullness of the leaves, and the scorched yellow shedding of the old leaves. At this time, it is necessary to stop fertilization immediately, and in serious cases, the soil should be washed to reduce the concentration. B, insufficient fertilizer will also cause plant yellowing, such as iron deficiency, the leaves are light yellow or white, and the leaf veins are still green, so it is necessary to spray 0.2% Moe 0.5% ferrous sulfate for prevention and control; magnesium deficiency, the old leaves turn yellow first, then the new leaves turn yellow, and the leaf veins are still green. At this time, 0.7%-0.8% boron and magnesium fertilizer can be sprayed to prevent and control.

Fourth, the temperature is too low, too low temperature will also cause leaf yellowing, as long as it is moved into the high temperature.

The reason why the mast flower does not bloom

First, improper water and fertilizer, once excessive, it will cause plant overgrowth, reproductive growth without enough nutrients will affect the formation of flower buds, resulting in no flowering or few flowering, some blooming, or even immediately fall off. In the period of flower bud differentiation, special attention should be paid to the collocation of phosphorus and potassium fertilizer, such as 0.2% potassium dihydrogen phosphate solution, which is conducive to flower bud formation and bud pregnancy; excessive fertilization and watering during the bud period will also cause falling flowers and seedlings.

(gardenia hasn't blossomed all the time, so be careful.)

Second, the light is not suitable, Jiaozi flowers like shade, we should pay special attention to the strong light in summer and too weak light in winter, too strong and too weak will affect the blossom.

Third, the soil contains high alkali, Jianzi flower likes acidic soil, cultivated mast flower soil contains high salt and alkali, it will cause plant yellowing, and eventually affect flowering.

Fourth, no pruning and shaping, messy masts and branches, a large number of miscellaneous branches consuming a lot of nutrients and branches too dense, affecting photosynthesis, are all important reasons for not flowering.

Fifth, diseases and insect pests are serious. I believe everyone can understand that serious diseases and insect pests are bound to lead to the loss of flowers.

Method

How to cultivate daffodils recommend the culture method of daffodils

More plants:

[ping an tree] [evergreen] [evergreen] [star anise plate] [southern bamboo] [ivy] [arrow lotus]

[Magnolia] [Primrose] [Spring Orchid] [Milan] [Magnolia] [Magnolia] [White Crane] [Fire Crane]

[Cymbidium] [eight Immortals] [Dahlia] [Chrysanthemum morifolium] [clematis] [plum] [pansy] [Daphne]

[tulips] [night incense] [evening jade] [mulberry] [longevity flowers] [African chrysanthemum] [mimosa] [bluebells]

[water lily] [perfume lily] [hydrangea] [red maple] [chicken claw maple] [string of red] [iris]