Best Fertilizer For Trees In Spring: 10 Options Compared

#1 · Best Overall

1. Jobe's Tree Fertilizer Spikes

• Weight: 8.3 lb
• Form: Sticks

Best for: No-Mix Deciduous Tree Feeding.

Why it ranks #1: Directions specify early spring and late fall use; 16-4-4 time-release spikes feed below the surface and are intended for deciduous trees and shrubs.

No mixing or measuring is required for Jobe's Tree Fertilizer Spikes, making them a straightforward spring option for deciduous trees and shrubs. The 16-4-4 time-release formula places nutrients below the surface near active roots, and the directions specify insertion around each plant's drip line.

The spikes provide a continuous nutrient supply below the soil surface, where the product description identifies active roots as growing, so the feeding is placed beneath the surface rather than spread across it. Their ready-to-insert format avoids measuring and mixing, simplifying application around a tree's drip line. Directions call for use in early spring and late fall, and the product is listed as feeding all season. It is also stated not to burn trees, a relevant point for buyers concerned about application near established plantings.

Skip it if you need stated coverage for coniferous or evergreen trees; SimplyGro Tree & Shrub Fertilizer Spikes lists both types.

This fits buyers feeding deciduous trees or shrubs who want an insert-and-place spring application without mixing or measuring. Its stated plant focus is narrower than products listing evergreen or coniferous trees.

Listed on Amazon as: Jobe's Tree Fertilizer Spikes, 16-4-4 Time Release Fertilizer for All Shrubs & Trees, 15 Spikes per Package – 2

#2 · Best for Fruit Trees

2. Farmer's Secret Fruit Tree Booster

• Weight: 2 lb
• Form: Liquid

Best for: Early-Growth Fruit Trees.

Why it ranks #2: Specifically targets fruit trees during early growth after dormancy until budding, with a concentrated liquid applied weekly after dilution.

A formula specifically positioned for the fruit-tree early growth cycle makes Farmer's Secret Fruit Tree Booster relevant to spring feeding after dormancy and before fruit starts to bud. Its concentrated liquid is diluted at one teaspoon per gallon and applied weekly along the drip line.

The product's phosphorus-rich formula is identified as supporting root-system expansion, giving it a particular focus during the stated early growth phase. Diluting one teaspoon per gallon and applying weekly along the drip line provides a repeatable watering routine for fruit trees including peach, banana, and apple. The 32-ounce bottle is described as enough to last a full season for a mature tree, which can simplify supply planning for that use case; the label also emphasizes storing fertilizer in its original container.

Skip it if you want a fruit-tree option that lists an early-growth focus in a smaller bottle; Farmer's Secret Fruit Tree Booster's 32-ounce format is larger.

This suits fruit-tree growers feeding during the early growth period who can follow a weekly dilution routine along the drip line. Its stated timing is specific, so consider whether that phase matches your spring application window.

Listed on Amazon as: Farmer's Secret Fruit Tree Booster Fertilizer – Super Concentrated and Phosphorus Rich – Formulated for All Fruit Trees Including Peach, Banana, and Apple (32oz)

#3 · Best Root-Directed Spikes

3. Miracle-Gro Tree & Shrub Spikes

• Weight: 3 lb
• Form: Sticks

Best for: Root-Zone Tree Spike Feeding.

Why it ranks #3: Its 15-5-10 spikes release nutrients near roots; label directions place them around the drip line for deciduous, flowering, and evergreen trees.

Slow-release nutrients delivered directly to roots make Miracle-Gro Tree & Shrub Plant Food Spikes a practical choice for gardeners avoiding surface-applied feed. The 12 spikes are listed for deciduous, flowering, and evergreen trees, as well as acid-loving plants such as hydrangeas and azaleas.

The label directions place spikes around the plant's drip line at least three feet apart, after watering the soil until it is softened. Driving each spike below the soil surface delivers its slow-release nutrients toward the root zone without requiring a liquid mix. Its listed 15-5-10 NPK ratio and broad plant guidance make it useful for a yard with several eligible tree and shrub types, while the spacing and placement steps call for some hands-on work.

Skip it if you want to feed without measuring spike placement; Jobe's Tree Fertilizer Spikes require no mixing or measuring.

Choose these for eligible trees and shrubs when root-zone spike feeding and the specified drip-line spacing suit your spring routine. Account for the placement work, particularly when treating several plants across a large yard.

Listed on Amazon as: Miracle-Gro Tree & Shrub Plant Food Spikes, 12 Spikes

#4 · Best Spring Directions

4. Old Farmer's Almanac Tree Spikes

• Weight: 1.5 lb
• Form: Sticks

Best for: Early-Spring Spike Application.

Why it ranks #4: Directions explicitly recommend early spring application and watering beforehand; these natural tree and shrub spikes also suit fall feeding.

Early-spring application is specifically named in the directions for these Old Farmer's Almanac tree and shrub spikes, making their timing relevant to a spring feeding plan. The six-count stick format is driven into soil with a hammer, rather than mixed or spread as granules.

The directions call for watering well before application, then using a hammer to drive each spike into the soil until its top is at the specified position. That sequence gives the application a defined, hands-on workflow: soften the soil first, then place the fertilizer spike. The listed ingredients include corn gluten meal, urea, muriate of potash, and ammonium phosphate. The package contains six spikes, a quantity to consider when planning coverage across multiple trees or shrubs.

Skip it if you need more listed spikes for a broader planting; SimplyGro Tree & Shrub Fertilizer Spikes comes with 12 spikes.

This fits a spring routine for a smaller number of trees or shrubs when you can water the soil and drive spikes in with a hammer. The six-count package is a consideration for larger plantings.

Listed on Amazon as: SIMPLYGRO Old Farmer's Almanac 1.5 lbs. Natural Tree and Shrub Fertilizer Spikes (6-Count TruSpikes) OFA-FS1333

#5 · Best Balanced Spikes

5. SimplyGro Tree & Shrub Spikes

• Weight: 3 lb
• Form: Sticks

Best for: Mixed Tree Spike Plantings.

Why it ranks #5: The 8-8-8 formula is described for varied tree types, including fruiting and flowering trees, in a convenient spike format.

An 8-8-8 formula for deciduous, coniferous, decorative, flowering, and fruiting trees gives these SimplyGro spikes unusually broad stated coverage across mixed plantings. Each five-inch spike places fertilizer below the surface, offering a direct-to-soil alternative to spreading granular feed around a garden.

The equal 8% nitrogen, phosphorus, and potassium formulation is presented for general nutrition across varied tree and shrub types, including fruiting and flowering plants. Its five-inch stick form provides a set placement approach rather than requiring fertilizer to be mixed with water. That can simplify a garden with several eligible plant categories, while the 12-spike package gives a defined quantity for planning placements. Ingredients include corn gluten meal, urea, muriate of potash, ammonium phosphate, superphosphoric acid, and potassium polyphosphate.

Skip it if you need a listed spring application schedule and tree-specific placement steps; Miracle-Gro Tree & Shrub Plant Food Spikes provides drip-line directions.

Choose these for mixed tree and shrub plantings when an 8-8-8 spike format and broad listed plant coverage suit your spring care. The 12-spike count is a practical limit to consider for many trees.

Listed on Amazon as: Tree & Shrub Fertilizer Spikes (12 Spikes – 3.0 Lbs)

#6

6. Miracle-Gro Shake 'N Feed

• Weight: 8 oz
• Form: Granules

Best for: Flowering Tree Container Care.

Why it ranks #6: Feeds flowering trees, shrubs, and acid-loving plants for up to three months, making it relevant when those are the spring planting priorities.

Continuous-release feeding for up to three months is the key practical feature of Miracle-Gro Shake 'N Feed, reducing the need for frequent spring applications. Its formula is intended for flowering trees, shrubs, and other acid-loving plants, with use both in the ground and in containers.

Natural ingredients including kelp, earthworm castings, feather meal, and bone meal feed microbes in the soil, connecting the product's formula to its soil-focused approach. Granules provide continuous-release feeding for up to three months, so one spring application can cover a longer stretch between feeding sessions. Its listed use on both in-ground and container plants also suits gardeners who care for flowering trees alongside potted acid-loving plants, without switching to a separate format.

Skip it if you need a formula explicitly labeled for all landscape trees; Southern Ag All Purpose Granular Fertilizer is a general-purpose 10-10-10 option.

This suits gardeners feeding flowering trees or acid-loving plants in beds and containers who want a granulated, longer-release routine. Choose another option if your spring plan centers on tree types outside its stated plant focus.

Listed on Amazon as: Miracle-Gro Shake 'N Feed Flowering Trees & Shrubs Plant Food, 8 lb.

#7

7. TPS Nutrients 10-10-10

• Weight: 8 oz
• Form: Liquid

Best for: Liquid Landscape Tree Feeding.

Why it ranks #7: A balanced liquid 10-10-10 formula is intended for landscape trees and shrubs, though the listing gives no specific spring schedule.

A liquid 10-10-10 formula with iron and micronutrients gives this TPS Nutrients fertilizer a balanced approach for trees and shrubs. It is aimed at landscape plantings, ornamentals, hedges, and garden plantings, with mixing intended to support straightforward, consistent nutrient delivery.

The equal nitrogen, phosphorus, and potassium ratio supports overall plant development, while the title also identifies iron and micronutrients as part of the formula. Because it is a liquid intended for mixing, it offers a different application workflow from dry granules or spikes and can suit gardeners who prefer preparing feed for landscape trees and shrubs. Its stated plant range includes ornamentals and hedges, so it can cover several types of established garden planting in one liquid format.

Skip it if you want a stated weekly mixing schedule for citrus; Farmer's Secret Citrus Tree Booster gives a one-teaspoon-per-gallon dilution and weekly directions.

Pick this for landscape trees, shrubs, hedges, or ornamentals if you prefer a liquid balanced fertilizer with iron and micronutrients. The supplied product information does not provide a mixing ratio or a spring application calendar.

Listed on Amazon as: 10-10-10 Fertilizer for Trees & Shrubs, Balanced NPK + Iron & Micros, 8 oz

#8

8. Southern Ag 10-10-10

• Weight: 5 lb
• Form: Granules

Best for: Small-Batch Balanced Feeding.

Why it ranks #8: This 5-pound granular 10-10-10 blend offers general-purpose balanced nutrition, but its supplied details do not specify tree use or spring timing.

A 10-10-10 NPK ratio gives this Southern Ag granular fertilizer equal parts nitrogen, phosphorus, and potassium, making it a straightforward option for spring tree care when you want a balanced formula. The 5-pound size suits gardeners who need a modest quantity for a limited number of plantings.

Its granular form lets you apply a dry fertilizer rather than mix a liquid, while the balanced 10-10-10 formulation provides equal NPK proportions. That makes the product a simple choice for buyers seeking general-purpose nutrients for trees as well as other garden plants. The listed package is 5 pounds, so it is a manageable amount to store and handle for a small planting; the supplied information does not specify a tree application schedule or rate.

Skip it if you need a listed spring schedule or tree-specific directions; Miracle-Gro Shake 'N Feed Flowering Trees & Shrubs specifies continuous feeding for up to three months.

Choose this for a small planting when you want granular, balanced 10-10-10 fertilizer in a 5-pound package. It is less suitable when a tree-specific application rate or feeding schedule is essential to your spring routine.

Listed on Amazon as: Southern Ag All Purpose Granular Fertilizer 10-10-10, 5 LB Size: 5 LB

#9

9. GARDENWISE 10-10-10

• Weight: 16 oz
• Form: Granules

Best for: Multi-Plant Slow-Release Granules.

Why it ranks #9: Its granular 10-10-10 blend lists fruit trees and evergreens among many uses and offers up to eight weeks of feeding, but lacks spring-specific directions.

Up to eight weeks of sustained nutrition gives GARDENWISE 10-10-10 granular fertilizer a clear spring-care advantage for gardeners seeking fewer applications. Its balanced nitrogen, phosphorus, and potassium formula is listed for fruit trees, evergreens, shrubs, flowers, vegetables, and potted plants.

The equal 10-10-10 NPK formulation makes this an all-purpose option across several listed plant categories, so a mixed garden can use one fertilizer rather than separate formulas for each group. Granules are applied evenly to soil and watered thoroughly afterward, a simple dry-application workflow. The stated slow-release feeding lasts up to eight weeks, helping space out applications during the growing period. Its listed indoor and outdoor uses also extend the same product beyond an in-ground tree bed.

Skip it if you prefer a tree-specific spike instead of spreading granules; SimplyGro Tree & Shrub Fertilizer Spikes uses an 8-8-8 spike format.

This suits gardeners who want one slow-release granular formula for trees and other garden plants, and can water after applying it. Its broad-use format is a fit for mixed plantings rather than a tree-only feeding approach.

Listed on Amazon as: 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. Farmer's Secret Citrus Booster

• Weight: 11.2 oz
• Form: Liquid

Best for: Weekly Citrus Tree Routine.

Why it ranks #10: This concentrated liquid is formulated for citrus trees, a narrow match for a general tree-fertilizer search, with weekly diluted application directions.

A precise weekly dilution makes Farmer's Secret Citrus Tree Booster easy to work into a spring citrus routine: mix one teaspoon with one gallon of water and apply along the drip line. Its listed uses include lemons, limes, and oranges, both outdoors and in containers.

The directions distinguish trees by age and setting: first-season trees receive one teaspoon weekly, mature trees can receive up to two teaspoons weekly, and indoor or container trees use half the dosage or an every-other-week schedule. That guidance helps adapt the same liquid concentrate to different citrus situations. The product can be applied to soil or foliage, offering two listed application routes, while the weekly schedule means it calls for repeated attention rather than a single seasonal placement.

Skip it if you want a less frequent listed feeding schedule; Miracle-Gro Shake 'N Feed Flowering Trees & Shrubs provides continuous-release feeding for up to three months.

This is a fit for citrus growers willing to dilute and apply fertilizer regularly, with separate directions for young, mature, and container trees. Its citrus focus and recurring schedule may not match a broad, low-frequency tree-feeding plan.

Listed on Amazon as: Farmer's Secret Citrus Tree Booster Fertilizer – Super Concentrated – Formulated for All Citrus Trees Including All Types of Lemons, Limes, and Oranges – Outdoor and Indoor/Container Trees (8oz)