[Solved] What Time Of Year Do You Fertilize Trees?

A well-nourished plant is better equipped to stave off perennial pest and diseases, but when you get to the longest day in June, there is little merit in continuing your feeding regime as trees are already scaling down their activities to prepare for dormancy in the autumn 🙈 Too much nitrogen in the summer months on greedy trees, such as Acer platanoides types, can lead to cells that can shatter in an early frost as their cell walls are weak from gorging themselves full of nutrient rather than hardening off to protect themselves in winter against freezing temperatures 👍 With cells filled with nutrient rich water suddenly freezing, the stems and trunk of your newly planted tree can rupture.
Slow- or controlled-release fertilizers have extended release periods compared to fast-release fertilizers whose nitrogen is water-soluble and readily available to the plants. The nitrogen in slow-release fertilizers may be sulfur-coated or a form such as IBDU or urea-formaldehyde. One-half or more of the total amount of nitrogen in controlled-release fertilizers should be “water insoluble” or slow-release nitrogen. For newly planted shrubs and trees, or in areas where the potential for runoff is very high, such as slopes or compacted soil, slow-release fertilizers are a good choice. Since the nutrients are released slowly, the potential for fertilizer damage (“burning”) and water contamination is less. (last revised 2 weeks ago by Mickle Delong from Firozabad, India)
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Margo Lockhart at earthdevelopmentinc.com, explains how a vital step to learning how to fertilize trees is learning when to fertilize. Trees that are still growing should be fertilized throughout the year. Trees need nitrogen based fertilizer while they are growing. For young growing trees, fertilize from March till the beginning of June. Fertilizing in these spring months helps them grow. It will also make your leaves greener. Spring fertilization helps fight off infection and keeps your tree healthy. There are also benefits to fertilization in the fall. Fall fertilization helps your tree last through the winter. It also recovers nutrients that your soil lost during the summer. (last modified 25 days ago by Karrissa Wray from Yerevan, Armenia)
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A fertilization program is used to maintain trees and shrubs in a vigorous condition and to increase their resistance to injury from diseases and insects. But the addition of any soil nutrient is recommended only if soil or plant foliage tests indicate a deficiency. Trees and shrubs that need fertilization to stimulate more robust and vigorous growth include those exhibiting pale green, undersized leaves and reduced growth rates and those in declining condition (for example, dead branch tips, called dieback) resulting from insect attacks or disease problems. Trees and shrubs that should not be fertilized include newly planted specimens and those with severe root damage from recent trenching or construction. The root systems of these plants need to re-establish before fertilizers are applied. Older, established trees do not need to be fertilized every year. (last revised 45 days ago by Eriberto Corbett from Kalasin, Thailand)
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Mehreen Alberts

Written by Mehreen Alberts

I'm a creative writer who has found the love of writing once more. I've been writing since I was five years old and it's what I want to do for the rest of my life. From topics that are close to my heart to everything else imaginable!

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