Magnolia Plant Care: What You Need To Know

  • By: Succulents Plants
  • Date: January 29, 2023
  • Time to read: 7 min.

Magnolia Plant Care What You Need To Know

The Magnolia plant is one of the most beautiful and fragrant shrubs. Whether you are looking for a beautiful flowering bush for your garden or want to add an extra touch of elegance to your home, magnolias are a perfect choice. If you’re looking for tips on magnolia plant care, this article will guide you through what you need to know to keep your magnolia healthy and happy. We’ll cover topics such as sunlight, water, soil and fertilization requirements, pruning and deadheading, pests, diseases, and other problems.

What is a Magnolia?

Magnolia is an evergreen shrub or tree native to North America and East Asia that belongs to the Magnoliaceae family. It is an attractive, fragrant flower in various colors, including white, pink, red, and purple. It is one of the earliest blooming flowers and is often used to decorate a garden or yard.

Magnolias come in three main varieties: deciduous, evergreen, and semi-evergreen. The deciduous variety sheds its leaves each season, while the evergreen and semi-evergreen varieties retain their foliage year-round. All magnolia varieties have large, oval- or round-shaped leaves with rough edges and a distinctive leathery texture. The flowers are the star- or cup-shaped with six to nine petals ranging from white to pink.

Sunlight Requirements

When it comes to the sunlight requirements of magnolia plants, they need between six to eight hours of direct sunlight exposure each day. When plants don’t receive enough sunlight, they don’t receive enough vital energy needed to thrive. As a result, they may become pale and start to wither. Additionally, they will be more susceptible to pests, disease, and other issues that can be detrimental to their health. To ensure that the magnolia plants stay healthy, ensure they are in a sunny spot and receive the sun exposure they need.

Water Needs

Water is an essential factor for magnolia plants to stay healthy and thrive. Ideally, you should ensure that the soil is kept lightly moist, not overly wet, and not completely dry. To achieve this, water the plant when the soil is dry to the touch but not when it’s still damp. When it comes to fertilization, the best time to do this is during the spring and summer season. Ensure to follow the instructions on the fertilizer’s packaging carefully, as over-fertilizing can be detrimental to the health of your magnolia plant.

Soil Requirements

When it comes to soil requirements for Magnolia plants, it is essential to ensure that they are planted in draining and slightly acidic soil. Magnolia plants prefer soil that is high in organic matter with a pH ranging from 5.5-6.5. The soil should also be kept moist but not overly wet. If planting in containers, use a mix of peat moss, loam, and perlite to ensure proper drainage. Additionally, use a slow-release fertilizer specifically for acid-loving plants at least twice a year. Taking proper care of the soil in which your Magnolia plants are planted will ensure optimal growth and beautiful blooms.


Fertilization is an essential part of successful magnolia plant care. Magnolias are heavy feeders and need to have a balanced fertilizer applied every few weeks during the growing season. The fertilizer you use should be tailored to the type of magnolia you have and its nutritional needs. Generally, a balanced, slow-release fertilizer labeled as safe for trees and shrubs should be applied. When fertilizing, follow the instructions on the package regarding how much to apply, which should be tailored to the size of your magnolia tree. Add organic matter, like compost or aged manure, to the soil to help feed the magnolia tree.

Pruning & Deadheading

Pruning and deadheading are essential components of caring for a magnolia plant. Pruning should usually be done in late winter or early spring, depending on the type of magnolia, as this is when new growth starts. The aim is to reduce the magnolia’s size and shape and remove any diseased or damaged branches. Deadheading the spent flowers is also essential to prevent unwanted self-seeding, which can occur when the flowers are left on the plant. Deadheading should be done in late winter or early spring or as soon as the flowers start to fade.

Pests, Diseases, and Problems

Regarding magnolia plant care, pests, diseases, and problems are among the most important things to consider. Magnolias are generally hardy and low-maintenance plants, but there are a few common issues that may affect the health of your magnolia tree or shrub. Knowing what to look out for and how to treat them can help ensure the best possible outcome.

Common Pests & Diseases

Maintaining a magnolia tree’s or shrub’s health is critical to thriving in a garden. Unfortunately, pests and diseases can affect them, often causing severe damage. Understanding the common pests and diseases that can affect magnolia plants is the first step in preventing and controlling them.

The most common pests that affect magnolia plants include aphids, scale, mealybugs, and whiteflies. Aphids are small, soft-bodied insects that can cause stunted growth and distorted foliage. They are usually found in colonies on the underside of leaves and new growth. Scale insects are also commonly found on magnolia plants. These insects form hard, waxy shells on the stems and undersides of leaves, which they use to protect themselves while they feed on plant juices. Mealybugs are small, white insects often appearing in clusters on magnolia plants’ stems and leaves. They excrete a sticky substance known as honeydew, which can cause sooty mold fungus to grow. Lastly, whiteflies are small, white, moth-like insects that feed on magnolia plants’ sap.

In addition to pests, magnolia plants may also suffer from numerous disease problems. One of the most common diseases affecting magnolia trees and shrubs is powdery mildew, a fungal disease spread by air. White or gray patches appear on the stems and leaves that can spread rapidly if not treated. Other common diseases include leaf spot, Verticillium wilt, root rot, and canker. Leaf spot is caused by fungi that can cause yellow, brown, or black spots on magnolia leaves. Verticillium wilt is a fungal disease that can cause wilting, yellowing, and leaf drops on magnolia trees and shrubs. Root rot is a fungal disease that can cause the yellowing, wilting, and eventual death of magnolia plants. Lastly, canker is a fungal disease that can cause sunken brown or black lesions on the stems and branches of magnolia trees and shrubs.

Fortunately, some steps can be taken to prevent and control pests and diseases on magnolia plants. Regularly inspecting plants for signs of pests or diseases is essential for early detection and treatment. Pruning and removing dead or damaged branches can also help to prevent the spread of pests and diseases. Finally, using an appropriate fungicide or insecticide can help to control or eliminate an infestation.

Other Problems to Watch For

When caring for magnolia plants, it is essential to watch for signs of other potential problems. As with any plant, magnolias are susceptible to various pests and diseases. Pests such as aphids, mites, mealybugs, and scales can all cause damage to magnolias. Insecticidal soap, horticultural oil, or neem oil can help protect the plant from these pests. Diseases such as leaf spots, powdery mildew, and Cercospora can also plague magnolias. Proper maintenance, such as pruning for air circulation and good sanitation, should help minimize the risk of these diseases.

Maintaining proper moisture levels is also essential for magnolia plant care. Too much or too little water can cause the plant to become stressed, decreasing flowering and growth. During the spring and summer months, magnolias should be watered regularly, allowing the soil to become moderately moist. In the fall and winter, the watering can be reduced to twice a month, allowing the soil to dry between waterings.

Finally, it is essential to fertilize magnolias as part of their care. Fertilizers should be applied to the soil in the spring and summer, with a balanced fertilizer being the best option. In the fall and winter months, a slow-release fertilizer could be used. As with any fertilizer, it is important not to over-fertilize the plant, as this can lead to excessive growth and a decrease in flowering.

These are other problems to look out for when caring for a magnolia plant. Proper maintenance and care can generally avoid or minimize these problems. If a problem does occur, it is essential to identify the issue and take the necessary steps to treat it promptly.


In conclusion, taking proper care of your magnolia is essential for ensuring a healthy and thriving plant. Magnolias are relatively easy to care for, requiring only adequate sunlight, soil, and water. Furthermore, fertilizing magnolias one to two times yearly and pruning and deadheading them can help ensure their health and beauty. Although some pests, diseases, and other problems may arise, these can be easily prevented with regular inspection and proper care. With all these tips and advice, you should be well-equipped to care for a magnolia successfully!


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