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10 Best Tree Fertilizers 2026 in the United States
#1
Winner
Espoma Organic Chicken Manure 25 lb. Bag. All Natural & Organic Fertilizer for All Flowers, Vegetables, Trees, and Shrubs. for Organic Gardening - 2 Pack
Espoma Organic Chicken Manure is a natural, organic fertilizer designed for a variety of plants including trees, shrubs, flowers, and vegetables. Its N-P-K ratio of 5-3-2 provides moderate nitrogen, phosphorus, and potassium, supporting steady growth without overwhelming the plant. Made from dehydrated chicken manure, it offers beneficial organic matter and an added 8% calcium, which strengthens plant cell walls and improves soil structure.
Rating
10.0
Chosen by1,339
N-P-K Ratio
Organic vs. Synthetic
Application Frequency
Most important from
1242 reviews
#2
Miracle-Gro Tree and Shrub Plant Food Spikes, For Deciduous, Flowering and Evergreen Trees, Hydrangeas, and Acid-Loving Plants, 12 Spikes
Miracle-Gro Tree and Shrub Plant Food Spikes are designed to enhance the health and appearance of trees and shrubs in your garden. With an easy application method, these spikes deliver essential nutrients directly to the roots, which is a significant advantage for ensuring effective nutrient uptake. They cater to a variety of trees, including deciduous, flowering, and evergreens, making them versatile for different types of landscaping. The simplicity of application—just place them around the tree's drip line in spring and fall—makes it user-friendly, even for gardening novices.
Rating
9.7
Application Frequency
Most important from
22413 reviews
#3
10-10-10 Plant Fertilizer Slow Release - 10 10 10 All Purpose Granular Garden Fertilizer for Vegetables, Tomato, Arborvitae, Shrubs, Rose, Flowers, Fruit, Fig Trees (1/2 Quart)
This 10-10-10 slow-release granular fertilizer offers a balanced mix of nitrogen, phosphorus, and potassium, making it a versatile choice for a variety of trees like fruit trees, evergreens, oaks, and shrubs. Its slow-release formula feeds plants steadily for up to eight weeks, reducing how often you need to apply it—usually twice per growing season for gardens and three times annually for trees and shrubs. This can save effort while supporting healthy root development, vibrant leaves, and overall plant resilience.
Rating
9.7
N-P-K Ratio
Application Frequency
Most important from
3777 reviews
Top 10 Best Tree Fertilizers 2026 in the United States
#1
Winner
Espoma Organic Chicken Manure 25 lb. Bag. All Natural & Organic Fertilizer for All Flowers, Vegetables, Trees, and Shrubs. for Organic Gardening - 2 Pack
Espoma Organic Chicken Manure 25 lb. Bag. All Natural & Organic Fertilizer for All Flowers, Vegetables, Trees, and Shrubs. for Organic Gardening - 2 Pack
N-P-K Ratio: 5-3-2
Type of Fertilizer: Chicken Manure
Organic vs. Synthetic: Organic
Micronutrients: 8% calcium
Application Frequency: Spring, fall trees; monthly flowers, veg
Chosen by 1339 this week
Miracle-Gro Tree and Shrub Plant Food Spikes, For Deciduous, Flowering and Evergreen Trees, Hydrangeas, and Acid-Loving Plants, 12 Spikes
Miracle-Gro Tree and Shrub Plant Food Spikes, For Deciduous, Flowering and Evergreen Trees, Hydrangeas, and Acid-Loving Plants, 12 Spikes
Type of Fertilizer: Spikes
Organic vs. Synthetic: Synthetic
Application Frequency: Twice a year
Soil pH Compatibility: For acid-loving plants
10-10-10 Plant Fertilizer Slow Release - 10 10 10 All Purpose Granular Garden Fertilizer for Vegetables, Tomato, Arborvitae, Shrubs, Rose, Flowers, Fruit, Fig Trees (1/2 Quart)
10-10-10 Plant Fertilizer Slow Release - 10 10 10 All Purpose Granular Garden Fertilizer for Vegetables, Tomato, Arborvitae, Shrubs, Rose, Flowers, Fruit, Fig Trees (1/2 Quart)
N-P-K Ratio: 10-10-10
Type of Fertilizer: slow-release granular
Organic vs. Synthetic: synthetic
Application Frequency: twice per season for gardens
Farmer's Secret Fruit Tree Booster Fertilizer (32oz) - Super Concentrated and Phosphorus Rich - Formulated for All Fruit Trees Including Peach, Banana, and Apple
Farmer's Secret Fruit Tree Booster Fertilizer (32oz) - Super Concentrated and Phosphorus Rich - Formulated for All Fruit Trees Including Peach, Banana, and Apple
Type of Fertilizer: Liquid
Application Frequency: different for young and mature trees
BioAdvanced 12 Month Tree and Shrub Fertilizer, Protect & Feed Granules, 10 lb, Insect Killer and Plant Food
BioAdvanced 12 Month Tree and Shrub Fertilizer, Protect & Feed Granules, 10 lb, Insect Killer and Plant Food
Type of Fertilizer: slow-release, granule-based
Organic vs. Synthetic: Synthetic
Application Frequency: year-long feeding, one application
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Up to 5% off
Dr. Earth Natural Wonder Fruit Tree Fertilizer 25 lb
Dr. Earth Natural Wonder Fruit Tree Fertilizer 25 lb
Type of Fertilizer: Fruit Tree Fertilizer
Organic vs. Synthetic: Organic
Micronutrients: multi-minerals, proteins, carbohydrates, humic acids
GARDENWISE Professional Citrus Fertilizer + Vital Micronutrients; Perfect Balanced NPK for All Citrus; for Indoor and Outdoor Plants; Orange, Lime, Avocado and Lemon Tree Fertilizer (2 QUARTS)
GARDENWISE Professional Citrus Fertilizer + Vital Micronutrients; Perfect Balanced NPK for All Citrus; for Indoor and Outdoor Plants; Orange, Lime, Avocado and Lemon Tree Fertilizer (2 QUARTS)
N-P-K Ratio: 6-4-6
Type of Fertilizer: granular, slow-release coating
Organic vs. Synthetic: synthetic
Micronutrients: magnesium, zinc, copper, iron, boron
Application Frequency: less frequent, slow-release coating
Miracle-Gro Shake 'N Feed Palm Plant Food, For Container and In-Ground Plants, Palm Trees, Cycads and Tropical Plants, 4.5 lbs.
Miracle-Gro Shake 'N Feed Palm Plant Food, For Container and In-Ground Plants, Palm Trees, Cycads and Tropical Plants, 4.5 lbs.
N-P-K Ratio: balanced
Type of Fertilizer: Plant Food
Organic vs. Synthetic: Synthetic
Micronutrients: magnesium, iron, manganese
Application Frequency: every 3 months
BioAdvanced Shrub Care Protect & Feed, Granules, 10 lb
BioAdvanced Shrub Care Protect & Feed, Granules, 10 lb
N-P-K Ratio: 1:0:0
Type of Fertilizer: Granules
Organic vs. Synthetic: Synthetic
Application Frequency: Every 6 weeks
#10
BioAdvanced
BioAdvanced
N-P-K Ratio: 12 Month
Type of Fertilizer: slow-release, synthetic
Organic vs. Synthetic: synthetic
Application Frequency: single application up to one year
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Buying Guide for the Best Tree Fertilizers
Choosing the right tree fertilizer is crucial for ensuring the healthy growth and development of your trees. Fertilizers provide essential nutrients that trees need to thrive, and selecting the right one can make a significant difference in the health and appearance of your trees. When picking a tree fertilizer, it's important to consider several key specifications to ensure you are providing the best possible care for your trees.N-P-K RatioThe N-P-K ratio represents the percentage of nitrogen (N), phosphorus (P), and potassium (K) in the fertilizer. These are the primary nutrients that trees need. Nitrogen promotes leaf and stem growth, phosphorus supports root development and flowering, and potassium enhances overall health and disease resistance. For young trees, a higher nitrogen content (e.g., 10-10-10) is beneficial for growth. For mature trees, a balanced or lower nitrogen ratio (e.g., 5-10-10) is better to support root and fruit development. Choose the N-P-K ratio based on the age and type of tree you are fertilizing.
Type of FertilizerFertilizers come in various forms, including granular, liquid, and spikes. Granular fertilizers are easy to apply and provide a slow release of nutrients over time, making them ideal for long-term feeding. Liquid fertilizers offer quick nutrient absorption and are suitable for immediate nutrient needs. Fertilizer spikes are convenient and provide a steady release of nutrients directly to the root zone. Consider the ease of application and the specific needs of your trees when choosing the type of fertilizer.
Organic vs. SyntheticOrganic fertilizers are made from natural materials and release nutrients slowly, improving soil health over time. They are environmentally friendly and safe for use around children and pets. Synthetic fertilizers are chemically manufactured and provide a quick release of nutrients, which can be beneficial for immediate results. However, they may not improve soil health in the long term. If you prefer a more sustainable approach, opt for organic fertilizers. If you need rapid results, synthetic fertilizers may be more suitable.
MicronutrientsIn addition to the primary nutrients (N-P-K), trees also require micronutrients such as iron, manganese, zinc, and copper for optimal growth. These micronutrients are often included in fertilizers in small amounts. Check the fertilizer label to ensure it contains the necessary micronutrients, especially if your soil is deficient in any of them. If your trees show signs of nutrient deficiencies, such as yellowing leaves or stunted growth, a fertilizer with added micronutrients can help address these issues.
Application FrequencyDifferent fertilizers have varying application frequencies, ranging from once a year to several times a season. Slow-release fertilizers typically require less frequent applications, while liquid fertilizers may need to be applied more often. Consider your schedule and the level of maintenance you are willing to commit to when choosing a fertilizer. If you prefer low-maintenance care, opt for a slow-release fertilizer that requires fewer applications.
Soil pH CompatibilitySoil pH affects nutrient availability to trees. Some fertilizers are formulated to work best within specific pH ranges. Test your soil pH before selecting a fertilizer to ensure compatibility. Most trees prefer a slightly acidic to neutral pH (6.0-7.0). If your soil pH is outside this range, choose a fertilizer that can help adjust the pH or consider amending the soil to achieve the desired pH level.