Often, people who own a lemon tree are perplexed as to why it is dropping its leaves. The root cause of this phenomenon may be due to a variety of reasons, such as overexposure to sunlight, lack of water, improper fertilization, and/or pest infestation. In some cases, it may even be a combination of these causes.
First and foremost, a lemon tree must get sufficient sunlight. If the tree does not get the required hours of direct sunlight per day, the leaves will gradually drop off. If the tree has been placed in a location that lacks enough light, it should be moved to a location with more direct sunlight.
Second, a lemon tree needs to be watered regularly to prevent the leaves from dropping. As a rule of thumb, a lemon tree should get an inch of water per week during its growing season in order for it to thrive. Additionally, if the soil around the tree has been allowed to dry out too much, the leaves may also become brittle and begin to drop off.
Third, a lemon tree requires fertilizer in order to receive sufficient nutrients. If the tree is not successfully fertilized, it may drop its leaves due to a nitrogen deficiency. Hence, it is important to fertilize the tree in accordance with its age and size.
Fourth, pests such as aphids, mites, and mealybugs can sap the tree of its vigor and cause its leaves to drop. If the tree’s leaves look discolored, spotted, or crinkled, it may be due to an infestation of pests. It is thus important to routinely check the tree for pests and treat them as soon as possible.
Lastly, the tree may suffer from fungal or bacterial diseases caused by its environment. If the tree’s leaves suddenly start to wilt or drop off, its soil may be acidic or have a deficiency of essential minerals. The tree can be tested for disease and treated accordingly in order for it make a full recovery.
Environmental Factors
Environmental factors can drastically impact a lemon tree’s health. Overwatering the tree, especially in conditions with high humidity, can cause its leaves to yellow and eventually drop off. Applying water-soluble fertilizer in excess can also cause its leaves to drop. Moreover, low temperatures can make the tree more prone to freezing, leading to its leaves gradually wilting off.
Pruning
Pruning is also essential for a healthy lemon tree. Too much tree topping can lead to an influx of new buds that can be weakened due to the lack of sufficient light and air circulation. This consequently results in the leaves gradually dropping off. It is thus important to prune in the summer, removing any dead leaves and branches. This will promote healthy airflow around the tree and allow the sun to reach all its branches.
Planting Location
The location of a lemon tree is also very important. It should be planted in well-drained soil and should receive sufficient sunlight. Placing the tree too close to buildings can cause the leaves to drop due to the lack of adequate sunlight. Additionally, planting too close to other trees can lead to increased competition for nutrients and water, resulting in the leaves gradually wilting off.
Winter Care
During the winter months, a lemon tree can be easily affected by the cold temperature. To protect it from the cold, it is important to wrap the tree in burlap or thick cloth. Doing this will limit the amount of cold air that reaches the tree, consequently sparing it from potential damage.
