Lemon Tree Leaf Yellowing, How to Fix it?

If you discover lemon tree leaf yellowing on your favorite lemon tree, you should investigate deeper. There are numerous growing issues, including the issue of leaves on lemon trees.

Lemon Tree Leaf Yellowing, How to Fix it

When the lemon tree leaves turn yellow and begin to dry out, you might notice that some of the leaves are turning brown. Or maybe you noticed the leaves on the Lemon Tree turning yellow a couple weeks ago. If you have, then you know that there is something wrong.

Many trees can have a natural form of yellowing on their leaves. However, if you have noticed that the leaves of your lemon tree are becoming discolored, this can mean that your tree is suffering from a fungus, a disease or a combination of the two.

Lemon Tree Leaf Yellowing, Is It Normal?

When lemon tree leaves frequently turn yellow, that’s a sign of a change in the plant. It could suggest that the plant has parasites or that it needs more nutrition. It’s a lot more depressing to think about yellow leaves, so keep that in mind. 

How do you fix yellow leaves on a lemon tree?

If the leaves on your lemon tree are yellowing, here are some probable causes and solutions.

1. Natural Maturing

If the leaves on your tree have turned yellow and the new growth is still healthy, the yellowed leaves may have fallen off due to age.

Trees have two kinds of leaves. The older leaves fall and drop to the ground when fruit trees come out of dormancy. If you move your lemon tree outside in the spring, the sunlight will probably cause the leaves to turn yellow, this should go away soon.

2. Seasonal Change (Winter, Summer Time)

Lemons grafted on leaf rootstocks will hibernate over the winter. Rootstock winter slowdown limits nutrition delivery to leaves, causing them to yellow and fall off. This is normal and doesn’t suggest your plant is sick.

In winter, don’t act. Fertilizer can promote new growth that dies from ice, snow, and cold. To promote nourishment and leaf look, give your trees lime and gypsum before winter.

Summer time means that it is a hot, humid season and lemon trees can get very sick during that time. Because of that, lemon trees usually lose their leaves and turn yellow. Some of the plants get weak. The leaves of lemon trees start to dry out and crack. The leaves also start to peel away. When this happens, they have to be taken off of the tree and thrown away because they are no longer usable. The only thing you can do is wait until the next year for new ones to grow. This will prevent the leaves from falling off the tree.

3. Overwatering

Lemon leaf yellowing is caused by over-watering. Over watering lemon tree causes root rot. Lemons’ thin roots can be wet by sprinklers if planted in a grass. Root rot is blackish brown and sticky and fails to absorb soil nutrients, causing yellow leaves.

You should water your lemon tree properly and avoid letting it dry out too much. Make sure that you don’t let your lemon tree dry out completely. You can water your tree in the early morning, during the day, and in the evening.

The best time to water your tree is in the morning and evening. Keep in mind that your tree needs to be watered only if it starts to dry out. Also, keep in mind that it is important for your lemon tree to be watered regularly and deeply. You should water your lemon tree when you notice that it is dry. If you water your tree in a timely manner, it won’t yellow. It will stay healthy and strong for a long period of time.

4. Lemon Tree Leaf Yellowing due to Lack of Water

Lemon trees that receive insufficient water will lose their leaves. If you water your tree for a month and then stop, you’ll have this problem. They will turn yellow and the leaves will wither after that.

Regular, deep watering that penetrates the root system is required for lemon trees. Plants do not obtain enough nutrients when they dry out.

If you want your trees to produce fruit, you must water them regularly. You can do this by watering it every day with a hose. This will ensure that you have a plentiful supply of fruit.

5. Nutrient Deficiency

You probably don’t realize that yellowed leaves and plants can mean that you are deficient in some nutrients. Some common nutrients that you might be deficient in are iron, calcium, phosphorus, magnesium, zinc, copper and others. Some signs of nutrient deficiency include yellowing leaves, stunted growth, lower yields and poor crop quality.

To keep the leaves of a lemon tree healthy, you must apply fertilizer regularly. If you are using commercial fertilizer, you should apply it every three weeks. You should also make sure that you apply fertilizer only to the base of the plant, and don’t use too much fertilizer. Using too much fertilizer could cause a lot of damage to your plants.

There are many different kinds of fertilizer, and you can get one that works for your lemon tree. You should get the fertilizer from the grocery store or the health department. You can also buy it online. You need to make sure that you select the right kind.

7. Put down some shade

Lemon trees thrive in bright sun, there’s such a thing as getting too much of a good thing. The leaves may progressively become white and lose their color if they are subjected to an excessive amount of sun. Give your plants some shade when it’s extremely hot outside to prevent sunburn and prolong the life of your plants. Some farmers apply a white latex paint on the tree bark as part of the liming process so that it can function as a sunscreen.

Lemon tree problems

In a garden or container, lemon trees frequently experience one of several different types of typical problems.

Yellowing Leaves (Chlorosis)

Lemon yellowing leaves (also known as chlorosis) is a disease that causes the leaves of the plant to lose their green color. This problem is caused by several factors such as too much water, direct sunlight, iron and mineral deficiency, and root rot.

When this happens, the plant starts to grow with yellow leaves. Chlorosis is one of the common diseases of plants.


Anthracnose is a broad term for a group of diseases caused by fungi that usually leave dark spots on leaves. In the worst cases, it can also cause twigs and stems to have holes and cankers. In nature, the fungus thrives in warm, humid conditions. It is spread by water droplets or soil particles which can be carried by wind or rain.

Anthracnose on lemon tree problems

Proper lemon tree watering and care prevent anthracnose. Copper-based fungicides with neem oil may help inhibit fungal growth. Use these as a last resort because they can harm beneficial insects and prevent them from inhabiting your garden.

– Citrus Canker

Lemon Citrus Canker is a very serious problem that can affect the health of trees and their fruits. It’s caused by a fungus that causes rot in citrus plants and trees. The fungus can attack the roots of citrus trees and also the leaves, fruit, and other parts of the plant.

Lemon Citrus Canker

Citrus canker infections aren’t hazardous to humans, but they will kill your lemon tree and other citrus plants. Yellowing leaves, fruit drop, and shoot dead wood are citrus canker symptoms.

When it comes to citrus canker, the only treatment available is prevention.

When the disease initially arrived, the remedy was to fire all of the affected trees. This was done because the disease proved destructive to agricultural citrus plants. In a radius of fifty feet around the fire, additional trees were destroyed.

Copper bactericides that function as preventatives are frequently used in combination with diligent garden upkeep. You might even decide to cultivate kinds that are resistant to disease. However, if you discover that your lemon tree is infected with citrus canker, you will be forced to cut it down because there is no other solution.

– Black Moldy Spots

Black Moldy Spots lemon leaves tree

It’s very frustrating to see moldy spots on your lemon trees. I think that they are a nuisance because it makes the lemon trees look unattractive. There are many ways to prevent moldy spots. You can use an insecticide, a fungicide, or you can spray the moldy spots with bleach.

– Botrytis Blight

This disease affects the lemon tree leaves and fruits. The disease is caused by a fungus called Botrytis cinerea. The symptoms include wilting and discoloration of the leaves. When the leaves begin to wilt, they turn yellow and eventually brown.

Lemon Botrytis Blight

If the disease gets worse, the leaves can fall off the trees and the fruit shrivels up. In addition, the disease can cause the lemon tree to die.

It is very important to apply fungicides to the trees. This will help to prevent the disease from spreading. Another solution is to prune the diseased tree. You need to remove all infected parts of the tree so that the disease can’t spread to the rest of the tree.

– Lemon Scab

Pustules that are raised and spongy appear pinkish at first, then grayish, and finally brown in appearance. The citrus scab disease affects almost every kind of citrus and can also be found on the leaves, branches, and twigs of the plant. According to the research on citrus scab, the warts on some fruits are more elevated while on others they are flatter.

Lemon Scab desease lemon tree fruit problems

Fungicides and well-timed sprays can treat citrus (lemon) scab disease. First treatment before blossom. Spraying blooms while 25% open has proven successful. Copper-based fungicides work best after the first spray. At petal fall and two or three weeks later, spray again.

– Citrus Leaf Miner

If you eat lemons or limes on a regular basis, you should know about the Citrus Leaf Miner. These tiny insects can lay their eggs in citrus leaves. The name of these small pests comes from the fact that they tunnel through leaf, leaving silvery trails on the leaves of your lemon tree. Over time, these leaves become misshapen, which can slow the growth of younger leaves.

Citrus Leaf Miner

These eggs hatch into larvae which burrow into the leaves of your citrus trees. Once inside, the larvae develop into adult beetles which are ready to mate. As they are looking for a place to lay their eggs, the female beetle carries her eggs with her while she moves around. The larvae then hatch and the cycle starts over again.

Use an appropriate insecticide and spray properly and thoroughly according to the directions on the back of the product label.

Mandarin tree yellow leaves

Yellowing of the leaves on mandarin trees is identical to the common problems that occur with yellowing of the leaves on citrus plants.

When citrus trees develop chlorosis or yellow leaves, the problem is frequently due to watering or a deficiency of nutrients. Oranges require consistent watering, particularly during the warmer months; nevertheless, an excessive amount of watering can wash out the minerals in the soil and lead to root rot. If the roots are harmed in any way, they will be unable to absorb the nutrients that are necessary for the plant.

Calamansi leaves turning yellow

Yellowing can also be caused by either watering or underwatering the calamansi. When there is insufficient nitrogen in the plant’s environment, the leaves of the calamondin plant also become yellow. When a plant is experiencing dryness, the leaves will also develop a yellow color. calamondin.

Do lemon trees need full sun?

Yes. A full-grown lemon tree needs sunlight to grow, If you do not give them enough sun, you will not get much fruit.  It will require a minimum of eight hours of sun every day, with no less than six hours allowed under any circumstances. Your tree’s ability to flower, thanks to the sun, will ultimately result in the production of tasty fruit.

The best time for planting lemon trees is in spring, and the best place is in full sun. Lemon trees need regular fertilization, and they need water when they are in drought. It is very important to use a fertilizer for lemon trees.

Can lemon trees grow in part shade?

Lemon trees can grow in part shade but they will not produce as many fruit. but they will not produce as many fruit as they would if they were in full sunlight.

The reason for this is that the lemon tree’s natural sunlight-requiring process of photosynthesis is slowed down in part shade. Additionally, part shade can provide some protection from direct sunlight, which may help to prevent blossom and fruit damage.

What is the best potting soil for lemon trees?

Lemon trees require a soil with a good texture and adequate drainage to flourish. A good potting soil for lemon trees can be made from equal parts of peat moss, perlite, and vermiculite.

A good potting soil for lemon trees will have a high percentage of organic matter, moderate pH levels, and good drainage.

When planting lemon trees, make sure the soil is still moist but not soggy. Fertilize your lemon tree’s soil every two to three months with a balanced fertilizer that contains nitrogen, phosphorus, potassium, and magnesium.

How often should you fertilize a lemon tree?

Lemons are a great addition to any garden, and are perfect for lemon trees. Generally, you should be applying citrus fertilizers at about once every two months during active growth, and at about twice a year during dormancy. Fertilize with a nitrogen-rich fertilizer in early July before the leaves start to grow back.

How do you fertilize a lemon tree naturally?

Lemons are an excellent source of vitamin C, potassium, magnesium and other nutrients. They can be fertilized with a variety of organic materials including compost, manure, chicken droppings and even municipal waste. Use a natural fertilizer to care for these trees so that the quality and taste of the lemon fruit once it’s mature are assured.

  1. To provide nitrogen to your soil, mix grass cuttings from your yard. Remove any mulch from the tree’s base and scatter the clippings on the soil.
  2. Compost surrounding the citrus tree will add nutrients. Keep 2 inches of compost away from the stem to protect the bark. You may make compost by letting leaves, grass cuttings, broken branches, and old mulch decompose.
  3. Bone meal adds phosphorus to soil. Phosphorus promotes citrus blossom.
  4. After fertilizing, water the soil. This prevents compost or other compounds from burning dry soil.
  5. Water periodically to keep 8 to 12 inches of mulch moist. Mulch supplies nutrients to the soil and keeps moisture as it decomposes.

When should I fertilize my potted lemon tree?

When your trees are planted in early spring, you should fertilize your trees as soon as they start to grow leaves. Do this in order to provide the tree with the nutrients that it needs to become healthy.

Fertilize your lemon tree three times a year in order to keep it healthy. One time is in the spring, another time in the summer and the third time in the fall.

Always use a balanced fertilizer. You can also apply a liquid fertilizer to your tree in order to keep its roots well-nourished. You should also water your lemon tree as needed. Watering your lemon tree is important because it helps the tree to thrive and grow.

Is Epsom salt good for lemon trees?

Epsom salt is often used as a household remedy for various ailments. Some people even use it on their lemon trees as a treatment for lemons that are sour or discolored. Epsom salts are an efficient and convenient soil additive for correcting magnesium insufficiency in lemon trees since they are a type of magnesium. In order for your lemon tree to grow and gain fruit for years to come, it must have enough magnesium.

What month do lemon trees bloom?

Lemon trees bloom in May because they flower in the spring time. They are usually pollinated in late winter or early spring, there are a few varieties of lemon tree that can bloom at other times of the year, but they are rare.


Lemon tree leaf yellowing is a common problem that can be corrected. Keep your lemon tree well- nurtured by watering it regularly and feeding it a balanced fertilizer. Avoid over fertilizing as this can lead to lemons with weak growth and leaves that are susceptible to yellowing. Keep your lemon tree well-watered and fertilized to help prevent this problem, and if it does occur, use a fungicide to treat the affected areas.

Leave a Reply