10 Best Best Tree Fertilizer Spikes of 2025

Tested and Reviewed: Top 10 Best Tree Fertilizer Spikes deals with expert ratings from 8.1 to a perfect 10

April 2026 Edition

Editor's Choice

9.7

Miracle-Gro

Miracle-Gro Tree and Shrub Plant Food Spikes - Deciduous, Flowering & Evergreen Tree Fertilizer Spikes, Hydrangeas, and Acid-Loving Plants, 12 Count, 3 lb.

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Editor's bottom line:

“This best tree fertilizer spikes is the best one we tested. In terms of quality, brand and price, we couldn't ask for more.”

Main Highlights

LASTING COLOR: Miracle-Gro Tree & Shrub Plant Food Spikes are fertilizer spikes for trees and shrubs; they promote vibrant color and foliage for trees and shrubs in your yard
PROVIDES NUTRITION: These easy-to-use outdoor tree food spikes provide slow release nutrients directly to your trees and shrubs' roots, where they need it most
WHERE TO USE: Use tree spikes with deciduous, flowering and evergreen trees as well as acid-loving plants like hydrangeas, azaleas and magnolias
APPLICATION: Apply the outdoor plant food spikes once in spring and once in fall by placing plant spikes around the tree's drip line with at least 3 ft. between each spike (see packaging for more details)
COVERAGE: This 3 lb. package Miracle-Gro Tree & Shrub Plant Food Spikes includes 12 spikes, enough plant food sticks to feed 3 trees with a 4-ft drip line diameter or 1 tree with a 12-ft. drip line diameter

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9.5

Jobe's Organics

Jobe's Tree Fertilizer Spikes, 16-4-4 Time Release Fertilizer for All Shrubs & Trees, 15 Spikes per Package - 2

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Main Highlights

IDEAL FOR: All deciduous trees and shrubs
Easy to use fertilizer spikes with no wasteful runoff, mess, hazards or smells
Formulated to ensure a continuous supply of nutrients below the surface, where the trees active roots are growing
Will not burn trees. Feeds all season
Doesn't require any mixing or measuring

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9.5

The Old Farmer's Almanac

The Old Farmer's Almanac Tree & Shrub Fertilizer Spikes (Box of 6 Spikes - 1.5 Lbs)

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Main Highlights

Fast acting, long lasting, robust nutrition feeds trees, evergreens and shrubs
5 Inch TruSpikes are packed with fertilizer. They're easy to hammer in (no cap required) and will not break, crush or shatter
Simple to use. For best results, feed once per season -- early spring, and late fall -- for continuous fertilization
Contains natural ingredients -- like molasses -- that release nutrition directly into the root zone to help promote stronger trees and shrubs
Nutrient rich 13-3-3 formula with 13% Nitrogen for plant growth and color; 3% Phosphorus for healthy fruiting and blooms; and 3% Potassium for strong roots

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9.2

SimplyGro

SimplyGro Fertilizer Spikes for Evergreen Trees & Shrubs (72 Spikes - 18.0 Lbs)

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Main Highlights

Specially Formulated for Evergreen Trees & Shrubs: The 12-3-3 formula -- 12% Nitrogen; 3% Phosphorus; and 3% Potassium -- in these fertilizer plant food spikes was developed to meet the unique requirements of evergreens, pines, firs, and other coniferous trees and shrubs.
Set It & Forget It Solution: Each 5-Inch SimplyGro Fertilizer Spike is packed with nutrition designed for feed your trees and shrubs continuously for up to 3 months. For best results apply fertilizer spikes twice a year, once in the spring when plants use a lot of energy producing leaves, needles, cones, blooms, and seeds; and once in the fall when they're storing energy for winter.
A Smarter Way to Fertilize Your Plants: SimplyGro fertilizer spikes are pre-measured so you'll be less likely to over-feed you plants; and there's less likelihood of nutrient loss or leakage which can damage local waterways and ecosystems. Fertilizer spikes nourish below ground, at the roots where plants need it most for lush leaves, vibrant colors, beautiful flowers, and bountiful growth.
Hassle-Free Application: These aren't old, ordinary, crumbly, dusty, oval fertilizer "spikes". They're patented, powerhouse TruSpikes. With TruSpikes there's no need for a plastic cap or special equipment, just hammer the spike in and let it get to work feeding your trees and shrubs. TruSpikes will NOT break, crush or smash... guaranteed!
Made in the USA: Proudly manufactured in the United States to ensure consistent quality and performance.

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9.0

SimplyGro

SimplyGro Tree & Shrub Fertilizer Spikes (24 Spikes - 6.0 Lbs)

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Main Highlights

Formulated for All Types of Trees & Shrubs: The 8-8-8 formula -- 8% Nitrogen for vigorous plant growth and rich colors; 8% Phosphorus for healthy fruiting and flowering; and 8% Potassium for strong roots -- in these fertilizer plant food spikes provides ideal general nutrition levels for all types of deciduous, coniferous, decorative, flowering, and fruiting trees and shrubs.
Set It & Forget It Solution: Each 5-Inch SimplyGro Fertilizer Spike is packed with nutrition designed for feed your trees and shrubs continuously for up to 3 months. For best results apply fertilizer spikes twice a year, once in the spring when plants use a lot of energy producing leaves, blooms, and seeds; and once in the fall when they're storing energy for winter.
A Smarter Way to Fertilize Your Plants: SimplyGro fertilizer spikes are pre-measured so you'll be less likely to over-feed you plants; and there's less likelihood of nutrient loss or leakage which can damage local waterways and ecosystems. Fertilizer spikes nourish below ground, at the roots where plants need it most for lush leaves, vibrant colors, beautiful flowers, and bountiful growth.
Hassle-Free Application: These aren't old, ordinary, crumbly, dusty, oval fertilizer "spikes". They're patented, powerhouse TruSpikes. With TruSpikes there's no need for a plastic cap or special equipment, just hammer the spike in and let it get to work feeding your trees and shrubs. TruSpikes will NOT break, crush or smash... guaranteed!
Made in the USA: Proudly manufactured in the United States to ensure consistent quality and performance.

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8.8

SimplyGro

SimplyGro Tree & Shrub Fertilizer Spikes (12 Spikes - 3.0 Lbs)

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Main Highlights

Formulated for All Types of Trees & Shrubs: The 8-8-8 formula -- 8% Nitrogen for vigorous plant growth and rich colors; 8% Phosphorus for healthy fruiting and flowering; and 8% Potassium for strong roots -- in these fertilizer plant food spikes provides ideal general nutrition levels for all types of deciduous, coniferous, decorative, flowering, and fruiting trees and shrubs.
Set It & Forget It Solution: Each 5-Inch SimplyGro Fertilizer Spike is packed with nutrition designed for feed your trees and shrubs continuously for up to 3 months. For best results apply fertilizer spikes twice a year, once in the spring when plants use a lot of energy producing leaves, blooms, and seeds; and once in the fall when they're storing energy for winter.
A Smarter Way to Fertilize Your Plants: SimplyGro fertilizer spikes are pre-measured so you'll be less likely to over-feed you plants; and there's less likelihood of nutrient loss or leakage which can damage local waterways and ecosystems. Fertilizer spikes nourish below ground, at the roots where plants need it most for lush leaves, vibrant colors, beautiful flowers, and bountiful growth.
Hassle-Free Application: These aren't old, ordinary, crumbly, dusty, oval fertilizer "spikes". They're patented, powerhouse TruSpikes. With TruSpikes there's no need for a plastic cap or special equipment, just hammer the spike in and let it get to work feeding your trees and shrubs. TruSpikes will NOT break, crush or smash... guaranteed!
Made in the USA: Proudly manufactured in the United States to ensure consistent quality and performance.

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8.6

Miracle-Gro

Miracle-Gro Fruit & Citrus Plant Food Spikes Fertilizer - 10-15-15 Easy-to-Use Nutrient Spikes for Fruit and Citrus Trees, 12 Spikes

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Main Highlights

Formulated for Fruit and Citrus Trees: Use these fruit tree spikes on apple, orange, lemon, lime, and avocado trees; this formula is also great for feeding palm trees
Promotes Fruit Production: Miracle-Gro Fruit & Citrus Plant Food Spikes promote more fruit and lush foliage on your trees (vs unfed plants), helping your fruit and citrus trees thrive and produce a bountiful harvest
Easy Feeding Just Twice a Year: Apply these tree fertilizer spikes once in early spring and once in mid-fall; this simple seasonal schedule provides continuous nutrition to support your trees
Apply plant food spikes once in spring and once in fall by placing tree spikes around the tree's drip line with at least 3 ft. between each spike
Simple, Hassle-Free Tree Feeding: Contains 12 spikes; simply drive the spikes below the soil surface around the dripline using a rubber mallet or by stepping on them (follow label chart for quantity)

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8.3

The Old Farmer's Almanac

The Old Farmer's Almanac Tree & Shrub Fertilizer Spikes (Box of 24 Spikes - 6 Lbs) (OFA-FS1333-24)

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Main Highlights

Fast acting, long lasting, robust nutrition feeds trees, evergreens and shrubs
5 Inch TruSpikes are packed with fertilizer. They're easy to hammer in (no cap required) and will not break, crush or shatter
Simple to use. For best results, feed once per season -- early spring, and late fall -- for continuous fertilization
Contains natural ingredients -- like molasses -- that release nutrition directly into the root zone to help promote stronger trees and shrubs
Nutrient rich 13-3-3 formula with 13% Nitrogen for plant growth and color; 3% Phosphorus for healthy fruiting and blooms; and 3% Potassium for strong roots

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8.1

The Old Farmer's Almanac

The Old Farmer's Almanac Tree & Shrub Fertilizer Spikes (Box of 12 Spikes - 3 Lbs)

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Main Highlights

Fast Acting, Long Lasting, Robust Nutrition: Each 5 Inch TruSpike Fertilizer Spike is packed with nutrition designed for feed your trees, evergreens and shrubs continuously for up to 3 months.
5 Inch TruSpike Packed With Fertilizer... Hammer It In! This is not your old, ordinary, crumbly, dusty, oval shaped fertilizer "spike". This is a patented, powerhouse TruSpike. There's no need for a plastic cap or special equipment with TruSpike, just hammer it in and let it get to work feeding your plants. It will NOT break, crush or smash... guaranteed!
Nutrient Rich 13-3-3 Formula with 13% Nitrogen for virogrous, colorful plants; 3% Phosphorus for bountiful fruiting and blooms; and 3% Potassium for strong roots.
No Waste or Runoff: The Old Farmer's Almanac Fertilizer Spikes release nutrition directly into the root zone where plants need it most to help promote stronger trees and shrubs without waste or runoff.
Simple to use. For best results, feed 2 times a year -- early spring, and late fall -- for continuous fertilization. Depending on climate and plant variety, an additional application in the summer can provide extra nutrition and help protect from summer stress.

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8.1

The Old Farmer's Almanac

The Old Farmer's Almanac Evergreen Tree & Shrub Fertilizer Spikes, 10-4-10 (24 Spikes - 6.0 Lbs)

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Main Highlights

EASY APPLICATION: Hammer It In! This is not your old, ordinary, crumbly, dusty, oval shaped fertilizer "spike". This is a patented, powerhouse TruSpike. There's no need for a plastic cap or special equipment with TruSpike, just hammer it in and let it get to work feeding your plants. It will NOT break, crush or smash... guaranteed!
NUTRIENT RICH 10-4-10 FORMULA: Specially formulated to provide essential nutrients for all types of evergreen and fir trees ans shrubs, these 10-4-10 NPK Spikes provide 10% Nitrogen for virogrous, colorful needles and leaves; 4% Phosphorus for bountiful fruiting, coning and flowering; and 10% Potassium for strong roots. In addition your evergreen trees and shrubs will get an extra boost with 6% Magnesium!
CONVENIENT & SIMPLE TO USE: For best results, feed 2 times a year -- early spring and late fall. Depending on climate and plant variety, an additional application in the summer can provide extra nutrition and help protect from summer stress.
NO WASTE OR RUNOFF: Pre-measured The Old Farmer's Almanac Evergreen Tree & Shrub Fertilizer Spikes release nutrition directly into the root zone where plants need it most to help promote stronger trees and shrubs without waste or runoff.

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Our Best Overall Choice

Best Choice

9.7

Miracle-Gro

Miracle-Gro Tree and Shrub Plant Food Spikes - Deciduous, Flowering & Evergreen Tree Fertilizer Spikes, Hydrangeas, and Acid-Loving Plants, 12 Count, 3 lb.

Free Shipping

Editor's bottom line:

“This is the best one we tested. In terms of quality, brand and price, we couldn't ask for more.”

Main Highlights

LASTING COLOR: Miracle-Gro Tree & Shrub Plant Food Spikes are fertilizer spikes for trees and shrubs; they promote vibrant color and foliage for trees and shrubs in your yard
PROVIDES NUTRITION: These easy-to-use outdoor tree food spikes provide slow release nutrients directly to your trees and shrubs' roots, where they need it most
WHERE TO USE: Use tree spikes with deciduous, flowering and evergreen trees as well as acid-loving plants like hydrangeas, azaleas and magnolias
APPLICATION: Apply the outdoor plant food spikes once in spring and once in fall by placing plant spikes around the tree's drip line with at least 3 ft. between each spike (see packaging for more details)
COVERAGE: This 3 lb. package Miracle-Gro Tree & Shrub Plant Food Spikes includes 12 spikes, enough plant food sticks to feed 3 trees with a 4-ft drip line diameter or 1 tree with a 12-ft. drip line diameter

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