Why Are Lime Tree Leaves Turning Yellow?

The lime tree is a citrus that produces sour fruits. It is a good fruit tree to grow at home but you may face some problems like yellowing of leaves in growing this tree. You need to take care of your lime tree well to prevent problems like the yellowing of leaves. What are the causes why lime tree leaves turn yellow? 

Lime Tree Leaves Turning Yellow

Watering Problems


Overwatering can cause yellow leaves on the lime tree. The lime tree cannot handle too much water and it causes stress. Overwatering can happen when too much water is given to the lime tree or it can happen when heavy rains come.

A watering can or a garden hose can be used to water your lime tree but just give the right amount of water. Check the soil moisture before watering the lime tree if the soil is dry you can water it but if the soil is moist you don’t need to.

There are ways to check the soil moisture like pressing your finger a few centimeters in the soil, pressing a screwdriver, or using a soil moisture meter. Any of those ways can be used to know the soil moisture and gives you an idea of when to water the lime tree.

A well-draining soil is also helpful to avoid waterlogging. Sometimes heavy rainfall comes to your location and you must make good waterways to prevent your lime tree from getting flooded. Too much water can cause root rot which makes leaves yellow but when it’s prevented the leaves are safe.

Lacking Water

Lacking water can also cause yellow leaves on the lime tree. Water is essential for the lime tree to grow well which helps it to grow healthy and able to produce more fruits. Water the lime tree regularly and make a watering schedule so that you know when to water your plant.

The lime tree needs more water when the weather becomes hot. With the right amount of water, it can make the plant cool and hydrated. The lime tree needs at least 1 inch of water per week. 

Aging Lime Tree Leaves

It is normal to see yellow leaves on any plant or tree. Commonly these yellow leaves are aging leaves. It is normal to see these kinds of leaves even on lime trees because it is part of their growth.

It is a cycle for the lime tree leaves to grow and then get old. The young leaves will grow and after a few weeks or months, they turn yellow, and eventually, lime tree leaves turn brown.

If there are only a few yellow leaves on the lime tree then probably they are just aging leaves but if there are too many yellow leaves you need to analyze and observe if there are other reasons causing the problem.

Nutrient Deficiencies

Nitrogen is an important nutrient needed by the lime tree to keep its leaves growing and staying green. Nitrogen deficiency causes yellow leaves on the lime tree and to prevent it from happening you need to make the soil rich in nitrogen. You can use a soil tester to check the soil and then apply the right amount of nitrogen.

The lime tree needs nitrogen because this nutrient helps the production of chlorophyll in the leaves. Chlorophyll helps the lime tree to convert sunlight into food which makes helps it grow better. Aside from nitrogen, Iron deficiency can also cause leaves to turn yellow on lime trees.

There are many kinds of fertilizers and some of them have nitrogen and iron along with other nutrients which are helpful for the lime tree to grow well if applied.

Transplant Shock

Moving your lime tree to a new location can cause transplant shock. Transplant shock causes stress which can lead the leaves to turn yellow. Shock commonly affects mature lime trees and not those young lime trees.

You need to be careful in transferring mature lime trees because transplant shock may happen. Water the lime tree immediately just after transplanting. You will need to wait for a few days or weeks and monitor how the lime tree goes especially when they suffer transplant shock.

Usually, those young lime trees don’t get transplant shock. They just need to be watered after transplanting and they will grow just fine. 

You Overfertilized Lime Tree

You also need to be careful not to overfertilize lime trees. Too much fertilizer can burn roots and when roots get damaged it can cause yellow leaves. When roots are damaged the lime tree cannot get enough water and nutrients because the roots are not functioning well.

Avoid overfertilizing lime trees especially if you are using chemical fertilizers because they can burn lime tree roots.

If you are practicing organic gardening then you can use compost and other organic fertilizers. You can also add mulch to keep soil moisture.

Lime Tree Is Lacking Sunlight

The lime tree needs sunlight to grow healthy and be able to produce more food. Grow the lime tree in a place where it can get a lot of sunlight so that the yellowing of leaves can be prevented. The lime tree needs at least 6 hours of sunlight per day.

Avoid growing the lime tree near tall trees because it may not get enough sunlight because those tall trees may block the sunlight. When the lime tree is getting consistent sunlight per day it will grow healthy and can give you a lot of fruits.

Weather Changes

Weather changes can also affect the lime tree which may lead to its leaves turning yellow. Even if the lime tree needs more sunlight, extreme heat is not good. Too much sunlight can affect the leaves which can make them yellow. Keep the plants hydrated when the weather becomes hot.

Pests And Diseases

There are pests and diseases that may also cause yellow leaves on your lime tree. You need to monitor your lime tree and see if there are pests and diseases that attack your lime tree. In that way, you can protect them and you can use pesticides or fungicides to get rid of them.