Why Fertilize Trees in the Fall?
how to fertilize your trees this fall
- Consider testing your soil: An arborist can do a soil test to determine the specific nutrient needs of trees on your property. That way, you get exactly the right kind of fertilizer for your trees and plants.
- Timing is key: Fertilize in time for nutrients to be absorbed before the ground freezes, but not so late that root activity has stopped. Freezing ground isn’t common in all areas of Arizona, but this could be an issue at higher elevations.
- Choose a slow-release fertilizer: This delivers nutrients gradually, and at the right time especially during trees’ dormant period.
- Check the ingredients: Fertilizers with phosphorus and potassium are often recommended for strong tree root growth.
Fall Tree Watering and Mulching Tips
Proper tree watering and mulching are great additions to your fall root care checklist. When watering trees in the fall, water thoroughly during dry spells. Deep watering soaks the soil and encourages deep root growth. Well-watered tree roots better withstand winter stress. Newly-planted or recently-stressed trees need more watering to increase their chances of having a strong root system before winter.
If you live in higher elevations, stop watering trees when the ground starts to freeze. That helps you avoid trapping water around the roots, which can cause root damage.
Using natural mulch like wood chips or compost helps your trees retain moisture from the soil, moderate the soil temperature, and (of course) adds nutrients. When applying mulch, spread a 3 to 6-inch layer of mulch around the base of your trees. Be careful to avoid tree trunks to prevent tree disease, rot, and pest problems.
Want Healthier Trees? We’re Here to Help
We love to see happy, healthy trees growing throughout Northern Arizona. We’re happy to help you tackle your fall tree care to-do list. Whether you need tree trimming, pruning, or fertilizer application, we can get it done. We’re also happy to recommend how to set up and adjust your irrigation systems to water your trees for best results. Contact us today to schedule your tree care projects.