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Here is the comprehensive guide to understanding the fertilization needs of different trees
Trees provide shelter from the cold winds of winter, shade in the summer, and a calming presence. Trees need sunshine and an adequate supply of water to remain healthy. But what about fertilizers? Knowing when and how to fertilize different trees is essential if you want them to stay healthy for generations. We have compiled a guide to the fertilization needs of different trees.
Fertilization Needs Of Different Trees
- Different tree species require different amounts and types of fertilizers to live a healthy life. Fertilization depends on several factors, including the type of species, soil, and the plant’s overall health. Overfertilization and under-fertilization are both terrible for your trees. Knowing the right balance is the key. Keep reading to learn how to fertilize different trees.
Hardwood Trees
- Most trees live for centuries and can outlive humans if they are provided with the ample supply of nutrients that they need. When the oak tree is between 2 to 5 years of age, it should be supplied with iron and zinc-containing granular fertilizer. As the oak tree ages, fertilizing once a year would be sufficient.
On the other hand, it is easier to determine the fertilization needs of maple trees. Maple trees that grow about 6 inches a year are good. However, the tree needs fertilizer if the growth is below 2 inches. Slow-release nitrogen fertilizers work best for maple trees.
Fruit Trees
- Fruit trees must get the right amount of fertilizers. Fruit-bearing trees require a lot of energy and nutrients supplied by fertilizers. Even a tiny imbalance in the soil can affect the nutritional content of the fruits.
Therefore, it is essential to conduct a soil test before fertilizing the fruit trees. Generally, nitrogen fertilizers and the annual application of foliar zinc spray maintain optimal health.
Ornamental trees
- Ornamental trees that show average twig growth and have healthy-looking leaves throughout the year do not need fertilizer. However, if your ornamental tree is not growing as well as the previous year, it needs nitrogen fertilizer.
Yellowish leaves indicate chlorosis, which is a condition that occurs when the soil around the tree does not contain sufficient levels of zinc and magnesium.
Evergreen Trees
- Evergreen trees do not grow quickly. This is especially true for the evergreens that have been recently transplanted. If the tree lacks flowers or its needles aren’t as vibrant, it needs a dose of fertilizer. A fertilizer containing phosphorous, nitrogen, and potassium works best for evergreen trees.
How To Fertilize Your Trees
- Evenly spread fertilizer with a nitrogen content of 12 to 30% and phosphorus and potassium content of up to 12%. The fertilizer should be spread over the soil’s surface for a distance of 1-1/2 times the diameter of the branch spread. Ensure that the fertilizer is free from pesticides. After fertilizing, water the tree thoroughly and allow the fertilizer to reach the roots.
When Should You Fertilize Your Trees?
The best time to fertilize trees is before their active growth begins in early spring. However, some experts suggest that late fall is a better time to fertilize trees. On the other hand, some people take the middle road by fertilizing their trees in early spring and late fall. This may be optional for most trees. Therefore, the best thing to do is to consult an arborist to determine the right time to fertilize your trees.
We at American Tree Experts Inc. are one of the best tree pruning and tree nutrient management services, employing highly qualified arborists and experts. Call us today at 973-774-6091 and let our experts handle all your tree pruning and nutrient management needs.