Updated: March 31, 2023

Boxwood plants are popular choices for hedges, borders, and topiaries due to their evergreen foliage and ability to tolerate pruning. However, if you notice your boxwood plant leaves curling, it can be a cause for concern. In this article, we will discuss the reasons why your boxwood plant leaves are curling and what you can do to prevent it.

Lack of Water

One of the most common reasons why boxwood plant leaves curl is due to a lack of water. Boxwood plants require regular watering, especially during hot weather or prolonged dry spells. If the soil around the plant is dry or if the plant has not been watered in a while, its leaves may start to curl or wilt.

To prevent this from happening, ensure that your boxwood plants receive adequate water. Water them deeply once or twice a week, depending on the weather conditions and the type of soil they are planted in. It is also important to mulch around the base of the plant to retain moisture in the soil.

Pests and Diseases

Another reason why boxwood plant leaves may curl is due to pests or diseases. Boxwood plants are susceptible to various pests and diseases such as boxwood blight, mites, and leafminers. These pests and diseases can cause damage to the leaves, resulting in them becoming curled or distorted.

If you suspect that your boxwood plant has been affected by pests or diseases, it is important to take action quickly. Remove any infected leaves or branches and dispose of them properly. You can also use insecticides or fungicides to control the pests or diseases.

Environmental Stress

Boxwood plants are sensitive to environmental stress such as extreme temperatures, drought, or excessive exposure to sunlight. When exposed to these conditions, the leaves may curl or wilt as a way of protecting themselves.

To prevent environmental stress from affecting your boxwood plants, ensure that they are planted in an area with partial shade and well-draining soil. Avoid planting them in areas with high foot traffic or areas where they may be exposed to strong winds.

Nutrient Deficiencies

Boxwood plants require various nutrients such as nitrogen, phosphorus, and potassium to grow healthy foliage. If they do not receive enough of these nutrients, their leaves may become curled or yellowed.

To prevent nutrient deficiencies from affecting your boxwood plants, ensure that they are fertilized regularly with a balanced fertilizer. You can also amend the soil with compost or other organic matter to improve its nutrient content.

Root Rot

Root rot is a fungal disease that affects the roots of plants, causing them to decay and die off. When this happens, the leaves may become curled or wilted as a result of the plant’s inability to absorb water and nutrients effectively.

To prevent root rot from affecting your boxwood plants, ensure that they are planted in well-draining soil and that their roots do not sit in standing water for prolonged periods. Avoid overwatering your plants and remove any infected roots immediately.

FAQ

Q: Can I prune my boxwood plant if its leaves are curling?

A: Yes, you can prune your boxwood plant if its leaves are curling. Pruning can help promote new growth and improve the overall health of the plant.

Q: Can I use chemical pesticides on my boxwood plant?

A: Yes, you can use chemical pesticides on your boxwood plant to control pests such as mites or leafminers. However, it is important to read and follow the instructions carefully and avoid using excessive amounts of pesticides.

Q: Can I replant my boxwood plant if its leaves are curling?

A: It depends on the cause of the leaf curling. If it is due to environmental stress or nutrient deficiencies, replanting may not necessarily solve the problem. However, if it is due to root rot or other diseases, replanting may be necessary after treating the underlying issue.

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