Boxwood Fertilizer for Dense, Green Hedges

When your boxwood may benefit from feeding

As your boxwood pushes fresh light-green tips in spring, when soil testing shows nutrients are needed
If your potted boxwood is actively growing and regular watering has depleted the nutrients in its limited potting mix
After a light shaping prune, when your healthy boxwood resumes new growth and the soil lacks sufficient nutrients
When your established boxwood hedge shows slow growth despite adequate drainage and a soil assessment confirms a deficiency

Boxwood browning can come from winter injury, disease, and root stress. Feeding won't repair dead branches or replace proper drainage and disease assessment.

Results you can see

healthy foliage

Supports rich green leaves for a full, healthy-looking boxwood.

new growth

Encourages fresh shoot and leaf development during active growth.

dense full growth

Supports dense, compact foliage for a thicker, fuller-looking hedge or shrub.

Works for boxwood varieties

English Boxwood
American Boxwood
Green Velvet
Green Mountain
Winter Gem
Korean Boxwood
Dwarf Boxwood
Boxwood Hedges
Boxwood

How to use

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 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

What's inside

The 3.6-3-5.1 ratio is built for a dense evergreen shrub grown for its form. Nitrogen at 3.6% fuels the tight, even foliage that makes boxwood hold a clean hedge or topiary line, and potassium at 5.1% — the highest of the three — drives root strength and the cold-hardiness that keeps boxwood green through winter instead of bronzing. All of the nitrogen is nitrate nitrogen, the form roots absorb directly, so response is fast and burn risk stays low.

Beyond NPK: sea kelp (Ascophyllum nodosum) for natural growth compounds, plus calcium at 2.1% — unusually high, and what strengthens new growth and root structure — magnesium (0.75%), iron, manganese, zinc, boron, and copper. Iron and magnesium matter most for boxwood: a shortfall shows as yellowing or orange-bronze foliage, the discoloration boxwood owners most often want to fix.

How to care for boxwoods

Light

Full sun to part shade, about four to six hours a day. In hot southern gardens, afternoon shade helps prevent leaf bronzing and scorch.

Water

Soak deeply once a week for the first two years, then during dry spells. Boxwoods dislike soggy ground, so let the top few inches dry between waterings.

Soil

Well-drained soil with a slightly acidic to neutral pH, roughly 6.5 to 7.0. Plant slightly high in heavy clay and mulch two inches deep, keeping mulch off the trunk.

Temperature

Boxwoods are hardy in most temperate gardens. Winter wind and low sun cause bronzing on exposed plants, so a sheltered site or burlap screen helps in cold, windy spots.

Feeding

Feed Boxwood Fertilizer through spring and summer while new growth is pushing, mixed into your watering, then ease off in late fall so growth hardens before winter.

Pruning

Shear lightly in late spring after the first flush of growth, and thin a few interior branches each year so light and air reach the center.

Frequently asked questions

How often should I feed my boxwoods?

Boxwood Fertilizer is built for steady feeding through the growing season. Feed every 1–2 weeks in spring and summer while your shrubs are actively growing, and every 4 weeks in fall and winter, at 2 tablespoons per gallon in a watering can or the 1-ounce setting on a hose-end sprayer. Sheared hedges and topiary benefit most from this consistency: each cut asks your boxwood to push new growth, and a regular supply of nitrogen, potassium and calcium helps it fill back in evenly.

My boxwood is turning yellow or bronze — will this fix it?

If a nutrient shortage is behind it, yes. Some winter bronzing is normal on boxwood and greens up in spring, but persistent yellowing or an orange-bronze cast usually points to low iron or magnesium, or to cold and wind stress. Boxwood Fertilizer carries both iron and magnesium, and its potassium leads the formula at 5.1% to support the cold-hardiness that helps boxwood stay green through winter. With steady feeding, new growth generally comes in deep green within a few weeks.

When should I feed boxwoods for hedging?

Feed through spring and summer, when boxwood produces the flushes of growth you’ll shear into shape. Boxwood Fertilizer supplies nitrate nitrogen for dense foliage and calcium for strong new growth, so a hedge fed on the regular 1–2 week schedule has the resources to recover after each cut. Time your shearing so there is growing season left for your boxwood to fill back in, and ease off to the 4-week schedule in late fall; pushing tender growth before winter leaves boxwood open to cold damage and bronzing.

Will this burn my plants?

Boxwood 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 shrub. Mixed at 2 tablespoons per gallon and applied every 1–2 weeks, the nutrients arrive in solution at a strength the roots take up as they water. For newly planted boxwoods still establishing, start at half strength for the first two feedings.

When will I see results?

Color first, density second. New growth on a boxwood fed with Boxwood Fertilizer typically comes in greener within the first few weeks of the growing season, since the nitrate nitrogen, iron and magnesium are in solution and available as soon as you water. Boxwood grows slowly and densely by nature, so filling a thin hedge or a bare spot takes a full season or more of consistent feeding and well-timed shearing. Our formula supports that growth; your boxwood sets the pace.

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