Best Fertilizers for Trees and Shrubs to Promote Healthy Growth 2025
Choosing the best fertilizer for trees and shrubs can significantly enhance their health, color, and growth. The right fertilizer delivers essential nutrients directly to roots and foliage while protecting from pests and diseases. Below is a table summarizing top-rated fertilizing options for your landscape, with a variety of formats including spikes, granules, and liquid feeds, suitable for deciduous, evergreen, flowering, and acid-loving plants.
| Product | Brand | Type | Features |
|---|---|---|---|
| Miracle-Gro Tree and Shrub Plant Food Spikes | Miracle-Gro | Spikes | Feeds roots directly, for deciduous, flowering, evergreen trees |
| BioAdvanced 12 Month Tree and Shrub Protect and Feed (Granules) | BioAdvanced | Granules | Kills insects & protects for 12 months, slow-release nutrients |
| Miracle-Gro Shake ‘N Feed Flowering Trees and Shrubs | Miracle-Gro | Granules | Natural ingredients, feeds for 3 months, for flowering trees & acid-loving plants |
| TPS NUTRIENTS Arborvitae Tree Fertilizer Liquid Plant Food | TPS Nutrients | Liquid | Easy mix, supports all arborvitae varieties, rich in nitrogen & potassium |
| The Old Farmer’s Almanac Tree & Shrub Fertilizer Spikes (Box of 6) | The Old Farmer’s Almanac | Spikes | Fast acting, long lasting nutrition for trees and shrubs, simple use |
Miracle-Gro Tree and Shrub Plant Food Spikes
The Miracle-Gro Tree and Shrub Plant Food Spikes provide targeted nutrition by delivering essential nutrients directly to the tree roots, where absorption is most effective. Designed for deciduous, flowering, and evergreen trees, these spikes make fertilization simple.
Each box contains 12 spikes that slowly release fertilizer to promote vibrant color and foliage. The spikes are easy to insert into soil and deliver consistent feeding without the mess of loose granules. This option works well for gardeners looking for a low-maintenance and efficient feeding solution.
BioAdvanced 12 Month Tree and Shrub Protect and Feed Granules
The BioAdvanced 12 Month Tree and Shrub Protect and Feed combines fertilization with long-lasting pest control. This slow-release fertilizer feeds trees and shrubs while killing listed insects and preventing new pest infestations for up to 12 months.
Its systemic protection works from roots to leaves, suitable for both containerized and outdoor plants. The granule format ensures gradual nutrient delivery, improving overall tree and shrub health and resilience through the seasons.
Miracle-Gro Shake ‘N Feed Flowering Trees and Shrubs Plant Food
This plant food is formulated for flowering trees and shrubs, as well as other acid-loving plants. The formula contains natural ingredients like kelp, earthworm castings, bone meal, and feather meal, which gradually feed plants for up to 3 months.
The Shake ‘N Feed product is versatile for use in in-ground gardens or containers, improving foliage density and bloom color. It supports vibrant and lush growth suited for diverse landscape needs.
TPS NUTRIENTS Arborvitae Tree Fertilizer Liquid Plant Food
Suitable for all arborvitae varieties including green giant and emerald green arborvitaes, this liquid fertilizer provides an easy-to-mix formula to promote strong root systems and lush foliage.
Users combine 2 tablespoons with a gallon of water to water trees, ensuring precise nutrient delivery of nitrogen and potassium. The liquid format allows flexible application and fast absorption, ideal for gardeners wishing to supplement regular watering routines efficiently.
The Old Farmer’s Almanac Tree & Shrub Fertilizer Spikes (Box of 6)
The Old Farmer’s Almanac fertilizer spikes boast fast-acting and long-lasting nutrition, specially designed to feed trees, evergreens, and shrubs. The robust 5-inch TruSpikes are simple to use—just hammer into the soil near the base without needing a cap.
Engineered to resist breaking or shattering, these spikes deliver consistent feeding particularly when applied once per season—either early spring or late fall. This product is an effective, no-fuss option for maintaining tree and shrub vitality throughout the year.
Buying Guide: Choosing the Best Fertilizer for Trees and Shrubs
When selecting the best fertilizer for trees and shrubs, consider several key factors to ensure optimal plant health and ease of use.
Type of Fertilizer
- Spikes: Convenient and mess-free; insert directly into soil for slow nutrient release. Ideal for those wanting minimal effort and precise feeding.
- Granules: Spread around the tree base; generally slow-release, feeding plants over several months. Often combined with pest control features.
- Liquid Fertilizers: Mix with water and apply directly; fast absorption and flexible dosing. Suitable for targeted treatment or supplementation.
Nutrient Composition
Look for fertilizers that supply balanced nutrients including nitrogen (leaf growth), phosphorus (root development), and potassium (overall plant vigor). For flowering or acid-loving plants, formulas with additional organic compounds such as kelp or bone meal can enhance bloom and foliage quality.
Pest Protection
Some fertilizers provide systemic pest control that kills and prevents insect infestations for several months. This dual-action can protect trees and shrubs from harmful insects while fostering healthy growth, reducing the need for separate pesticide applications.
Plant Type and Environment
Choose a fertilizer suitable for your specific tree or shrub species, such as deciduous, evergreen, flowering, or acid-loving plants. Also consider whether your plants are in-ground or container-grown, as certain products are optimized for each setting.
Application Frequency and Season
Check how often the product recommends fertilizing—some require only seasonal application while others feed for several months from a single use. Applying fertilizer during appropriate growing seasons, typically early spring and late fall, maximizes nutrient uptake.
Ease of Use
If convenience is a priority, fertilizer spikes and liquid concentrates are user-friendly options. Granules may require more effort for proper distribution but often cover a larger area efficiently.