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TPS Plant Foods 10-10-10 for Trees liquid fertilizer, 32 oz bottle [wrap]
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10-10-10 for Trees

4.5 · 215 reviews

If your trees or shrubs need balanced nutrition, our liquid 10-10-10 Fertilizer for Trees delivers nitrogen, phosphate, and potash in equal proportions. Mix it with water to feed the soil beneath the canopy using the label's area-based directions. It's a practical option when your landscape needs these nutrients, without relying on one-size-fits-all advice about how often every tree should be fed.

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When your trees may benefit from feeding

  • When your tree's soil test indicates a need for nitrogen, phosphate, and potash—not just one nutrient
  • When spring leaf and shoot growth is weaker than expected and a nutrient shortage has been identified
  • When your container-grown ornamental tree is actively growing and its mix requires replenishment of all three primary nutrients
  • When an established landscape tree on depleted soil needs an area-based feeding plan confirmed by testing

Do not fertilize a newly planted or drought-stressed tree just to encourage establishment. Your trees may already be receiving nutrients from lawn fertilizer, and adding more isn't always beneficial.

Results you can see

Supports rich green foliage for a fuller, more vibrant tree.

Supports rich green foliage for a fuller, more vibrant tree.

Supports fresh shoot and leaf growth for a thicker, healthy-looking tree.

Supports fresh shoot and leaf growth for a thicker, healthy-looking tree.

Supports healthy root development for effective water and nutrient uptake.

Supports healthy root development for effective water and nutrient uptake.

Works for trees and shrubs

  • Maple Trees
  • Oak Trees
  • Pine Trees
  • Dogwood Trees
  • Arborvitae
  • Boxwood
  • Hydrangeas
  • Fruit Trees
  • Peach Trees

How to use

  1. Watering can

    Add 1–2 oz per gallon of feedwater

    Spring & summer: apply every 2–4 weeks

  2. Backpack / foliar sprayer

    Add 1–2 oz per gallon of feedwater

    Spring & summer: apply every 2–4 weeks

  3. Hose end sprayer

    Set to the 1–2 oz setting

    Spring & summer: apply every 2–4 weeks

  4. Any method above

    Add 1–2 oz per gallon of feedwater

    Fall & winter: apply every 4–8 weeks

What's inside
All three numbers level at 10% — equal nitrogen, phosphate and potash — for woody plants that need general feeding rather than a push in one direction. The nitrogen is split evenly: 5% nitrate nitrogen, which roots absorb directly, and 5% ammoniacal nitrogen, which the soil holds and converts over the following days. On a tree that split matters, because the feeding roots sit in a wide, shallow mat that gets watered and rained on; the nitrate works now and the ammoniacal fraction stays put longer.

Beyond NPK: sea kelp (Ascophyllum nodosum) for natural growth compounds, plus 1% sulfur with iron (0.01%), manganese (0.005%) and copper (0.005%). Iron and manganese are the two that go first in ground a tree has occupied for years, and the shortage shows as yellowing between still-green veins on the newest leaves at the branch tips.

Frequently asked questions

When should I apply 10-10-10 to trees?

10-10-10 for Trees is a balanced liquid feed, equal parts nitrogen, phosphorus and potassium, for trees and shrubs that need general nutrition rather than a push in one direction. Apply every two to four weeks in spring and summer and every four to eight weeks in fall and winter, at 1 to 2 ounces per gallon of water. The wider spacing suits woody plants, which draw on nutrients more slowly than a vegetable bed.

Is this the same as granular 10-10-10?

Same ratio, different form. Granular 10-10-10 is spread on the surface and breaks down over weeks, releasing as it’s watered in. 10-10-10 for Trees is a liquid: you mix it into water and it reaches the roots dissolved, the day you apply it, across the whole root zone. It goes on more often in smaller amounts, which lets you feed in step with the season.

What does 10-10-10 mean?

10% nitrogen, 10% phosphorus, 10% potassium, all three level, which is what people mean by a balanced fertilizer. Nitrogen for leaf and shoot growth, phosphorus for root development, potassium for general sturdiness and hardiness, none favored over the others. This one also carries 1% sulfur and a light dose of iron, manganese and copper.

How much do I use on a tree?

1 to 2 ounces per gallon of water, and one ounce covers about 50 square feet. Estimate the ground under the canopy out to the drip line, where the feeding roots are, and mix for that area rather than dosing per tree.

Is this different from the 10-10-10 for Vegetables?

Same analysis and the same ingredients; the difference is the schedule. Trees and shrubs draw on nutrients more slowly, so this one goes on every two to four weeks in spring and summer, while the vegetable formula is fed every week or two, because a vegetable bed is fed harder through a short season.

Will this burn my trees?

10-10-10 for Trees is a dilute liquid feed, and dilution is what matters here. Fertilizer burn happens when concentrated salts sit against the roots: too much product in too little water, or granules piled at the base of a plant. Mixed at 1 to 2 ounces per gallon and applied every two to four weeks in season, the nutrients arrive in solution at a strength the roots take up as they water. Keep to that mix and water it in as part of a normal watering.

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10-10-10 for Trees Quart $24.99