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Our Tree Fertilizer is a liquid plant food made specifically for tree varieties, in the landscape or in large containers. It provides balanced nutrition to support steady growth, strong roots, and healthy foliage.
It is a 3.6-3-5.1, with more potassium than nitrogen, and it is the liquid alternative to spikes or granules: mixed into water and taken up at the roots straight away rather than releasing over months. It does best in well-draining soil with some water retention, and light from indirect to direct bright.
Mix it into a watering can for a few trees, or run it through a hose-end sprayer for a large one. Feed every week or two in spring and summer, about monthly in fall and winter.
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Plant appearance can also be affected by light, watering, roots, temperature, and other growing conditions, so feeding is one part of overall plant care.
3.6% nitrogen, all of it nitrate — the nutrient behind leaf growth and green colour.
5.1% soluble potash, the largest number in the analysis — the nutrient behind sturdy new stems.
3% available phosphate — the nutrient behind root development.
Watering can
2 Tbs (30 mL) per gallon of water
Spring & summer: every 1–2 weeks · Fall & winter: every 4 weeks
Hose-end sprayer
Set dial to the 1 oz (30 mL) setting
Spring & summer: every 1–2 weeks
Leaf misting (optional)
1 tsp per quart (32 oz) of water
Every 1–2 weeks
Bright light, anywhere from indirect to full direct sun depending on the species. Oaks, maples and pines want open sun, while dogwoods and understory shrubs prefer dappled shade.
Water generously, then let the soil go mostly dry before the next soaking. Deep, occasional watering at the drip line beats a light daily sprinkle every time.
Well-draining soil that still holds some moisture, pH 6.0 to 7.0 for most trees. Mulch two to three inches deep, pulled back clear of the trunk.
Match your tree to your hardiness zone before planting, since one outside its range never truly settles in. New plantings need watering through their first two summers.
Feed every one to two weeks in spring and summer and every four weeks in fall and winter: 2 tablespoons of Tree Fertilizer per gallon in a watering can.
Prune most shade trees in late winter while they are dormant. Take out dead, damaged and crossing branches first, and never remove more than a quarter of the canopy.
Tree Fertilizer is a 3.6-3-5.1 formula for general feeding of trees and shrubs: nitrogen for leaf and shoot growth, potassium for hardiness, and calcium, magnesium and iron for healthy, well-colored foliage. Feed every week or two in spring and summer, about once a month in fall and winter, at 2 tablespoons per gallon or the 1-ounce setting on a hose-end sprayer.
A liquid. You mix it into water and pour or spray it over the root zone, so the nutrients are dissolved and reach the roots the day you apply it; all of the nitrogen is nitrate, the form roots absorb directly. A spike or granule sits in one spot and breaks down over months, feeding mostly the soil around it. A liquid covers the whole root zone, little and often, and you control the amount.
Trees and shrubs generally. Tree Fertilizer isn’t tied to one species; shade trees, ornamentals, hedging and established shrubs all draw on the same core nutrients, and this formula supplies them in a balance that suits woody plants. We also make separate feeds for fruit trees and for specific species such as Japanese maple and arborvitae, where the needs are more particular.
Use a hose-end sprayer set to the 1-ounce mark and work around the drip line, the outer edge of the canopy, where the feeding roots are. Aim to wet the root zone evenly rather than counting gallons; a large tree has a wide, shallow network of feeding roots, and covering that area is what gets the nutrients where they’re used.
Yes, at the same 2 tablespoons per gallon on the same schedule. Tree Fertilizer is a dilute liquid feed, so a new tree simply joins the routine; there’s no separate transplant rate. Water a new planting in well first, since roots need moisture before they need nutrients, then feed with one of the regular waterings.
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 plant. Mixed at 2 tablespoons per gallon, or the 1-ounce hose-end setting and applied every week or two 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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