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Oak Tree Fertilizer

Our Oak Tree Fertilizer is a liquid plant food made specifically for oak tree varieties, in the landscape or in large containers. It provides balanced nutrition to support strong canopy, steady growth, and strong roots.

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1m+ happy customersMade in the USAMade by growers

When your oak tree may benefit from feeding

  • During the active growing season, when new shoots and leaves are forming
  • When plants have been growing in the same bed or container for several seasons
  • After heavy rain or frequent irrigation, which can carry nutrients below the root zone
  • For plants in containers, raised beds or sandy soils that hold few nutrients
  • In the first few seasons after planting, while trees and shrubs establish

Plant appearance can also be affected by light, watering, roots, temperature, and other growing conditions, so feeding is one part of overall plant care.

Results you can see

Feeds foliage for deeper color and a brighter, more lively look.

Feeds foliage for deeper color and a brighter, more lively look.

Encourages fresh leaf and stem growth for a fuller, thriving plant.

Encourages fresh leaf and stem growth for a fuller, thriving plant.

Supports healthy, resilient roots that absorb nutrients more effectively.

Supports healthy, resilient roots that absorb nutrients more effectively.

Works for oak tree varieties

  • Red Oak
  • White Oak
  • Pin Oak
  • Live Oak
  • Bur Oak
  • Willow Oak
  • Scarlet Oak
  • English Oak
  • Oak Tree

How to use

  1. Watering can

    2 Tbs (30 mL) per gallon of water

    Spring & summer: every 1–2 weeks · Fall & winter: every 4 weeks

  2. Hose end sprayer

    Set dial to 1 oz (30 mL) setting

    Spring & summer: every 1–2 weeks

  3. Leaf misting (optional)

    1 tsp per quart (32 oz) of water

    Every 1–2 weeks

How to care for an oak tree

Light

Oaks are full sun trees and want six or more hours a day. A young oak planted in shade grows thin and leans hard toward the light.

Water

Soak a newly planted oak deeply once a week for its first two or three years, wetting the whole root zone. Established trees rarely need water outside long droughts.

Soil

Deep, well drained soil, slightly acidic at pH 5.5 to 6.5. Spread mulch two to three inches deep in a wide ring, keeping it off the trunk.

Temperature

Match the species to your climate: northern red and bur oak handle zone 3 winters, while live oak wants zone 8 and warmer. Cold hardiness varies widely across oaks.

Feeding

Apply Oak Tree Fertilizer over the root zone in early spring as the buds break, and again in early summer if new growth looks short. Water it in well.

Pruning

Prune in the dormant season, from late fall through late winter, when the beetles that move oak wilt are inactive. Take out dead, damaged and crossing branches.

Frequently asked questions

How often should I feed my oak tree?

Every 1–2 weeks in spring and summer while your tree is actively growing, and every 4 weeks in fall and winter. Oak Tree Fertilizer is mixed at 2 tablespoons per gallon of water into your regular watering, or applied with a hose-end sprayer on the 1 ounce setting for larger trees. Steady, dilute feeding suits an oak better than a single heavy application, and it’s most valuable for young oaks establishing their roots, which the potassium-forward formula is aimed at; they fill out faster with consistent nutrition.

My oak's leaves are yellow with green veins — what's wrong?

That pattern is chlorosis, and in oaks it usually comes from iron or manganese being locked up in alkaline soil rather than absent from it. Oak Tree Fertilizer carries both, along with magnesium, in a form the roots take up directly, so steady feeding helps new growth come in green. Leaves already yellowed won’t fully recover; you’re feeding what comes next. If your soil is very alkaline the condition can recur, so persistent cases may also need the soil pH lowered for a lasting fix.

Do established oaks need fertilizing?

Often not much. A large, healthy oak in good soil draws nutrients from a wide root zone and may need little or no feeding. Oak Tree Fertilizer is most worthwhile for young trees establishing, for oaks showing stress or poor color, and for trees in poor or compacted soil, including those recovering from transplant or drought. In those cases the nitrate nitrogen supports the spring flush and canopy, and the potassium and calcium support the roots and wood strength a young tree is still building.

Will this burn my tree?

Oak Tree Fertilizer 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 tree. Mixed at 2 tablespoons per gallon and applied every 1–2 weeks in the growing season, the nutrients arrive in solution at a strength the roots take up as they water, and all of the nitrogen is nitrate, the form roots absorb directly. For newly planted or transplanted oaks, start at half strength for the first two feedings.

When will I see results?

Color first. All of the nitrogen in Oak Tree Fertilizer is nitrate, which roots absorb directly, so new growth greens up within the first few weeks of feeding during the growing season, with the iron, manganese and magnesium supporting that color. Oaks grow slowly and steadily, so the goal is long-term vigor rather than a quick spurt: canopy fullness improves next, and actual size is measured over seasons and years. The potassium-forward formula supports the deep root system that growth rests on.

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Oak Tree Fertilizer Quart $24.99