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High Nitrogen Fertilizer for Lawns

Our High Nitrogen Fertilizer for Lawns is a liquid lawn food made for all common lawn grasses. It provides balanced nutrition to support even green-up, dense turf, and steady root development.

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Free shipping1M+ Bottles SoldMade in Seattle

When your lawn may benefit from feeding

  • At the start of the growing season, as your lawn greens up
  • After frequent mowing, which removes nutrients with every clipping
  • After heavy rain or regular irrigation on sandy or thin soils
  • Several weeks after seeding or sodding, once new grass is established
  • When growth has slowed mid-season despite regular watering

Lawn color and density also depend on mowing height, watering, soil compaction and sunlight, so feeding is one part of overall lawn 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 all common lawn grasses

  • Kentucky Bluegrass
  • Tall Fescue
  • Perennial Ryegrass
  • Bermuda
  • Zoysia
  • St. Augustine
  • Centipede
  • Fine Fescue

Label facts

NPK 8-1-2 with 1.5% calcium and 0.75% magnesium, plus iron, manganese, zinc, boron and copper.

Derived from kelp (ascophyllum nodosum), potassium nitrate, potassium phosphate, calcium nitrate, magnesium nitrate, boric acid, copper sulfate, ferric sulfate, manganese sulfate, zinc sulfate, urea.

One 8 oz bottle makes 8 gallons of feed at 2 Tbs per gallon — the 32 oz makes 32.

Store cool and dark. Guaranteed 12 months from purchase; keeps up to 2 years.

Frequently asked questions

When should I use a high-nitrogen lawn feed?

During active growth, when your grass can put nitrogen straight into new blades. For cool-season lawns such as Kentucky bluegrass, tall fescue and perennial ryegrass, that’s spring and fall; for warm-season lawns such as bermuda, zoysia, St. Augustine and centipede, it’s summer. High Nitrogen Fertilizer for Lawns is a liquid, so it’s available to the roots as soon as it’s watered in, which makes it the quickest route to greening up a pale lawn and thickening thin turf while the grass is growing.

How do I apply it to a lawn?

High Nitrogen Fertilizer for Lawns is made to go on with a hose-end sprayer, which covers a whole lawn in one even pass at the recommended setting. For small patches or repair areas, a watering can at the recommended dilution does the same job. Apply in the morning or evening rather than in full midday sun, then water in lightly so the nitrogen moves off the blades and into the root zone. Because it’s a liquid, coverage is even and there’s no granule to spread or sweep up.

Will high nitrogen burn my lawn?

High Nitrogen Fertilizer for Lawns 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 dropped unevenly so one patch gets a heavy dose and browns in a streak. Applied through a hose-end sprayer at the recommended setting, the nitrogen arrives in solution across the whole lawn at a strength your grass takes up as it waters. Keep to that mix, water it in, and skip applications during extreme heat.

Is it safe for kids and pets?

Yes, once it has been watered in and your grass has dried. High Nitrogen Fertilizer for Lawns contains plant nutrients only; there’s no herbicide or pesticide in it, which is what usually drives the waiting periods on lawn products. Apply it in the morning or evening, water it in lightly so it moves off the blades into the soil, and let your lawn dry before anyone goes back out on it. After that, normal use of the yard can carry on as usual.

Will it burn my lawn?

Not when it’s mixed and applied as intended. Burn on a lawn comes from concentration: too much nitrogen in one spot, which is why unevenly spread granules leave streaks and scorched patches. High Nitrogen Fertilizer for Lawns goes on as a liquid through a hose-end sprayer at the recommended dilution, so every part of your lawn receives the same light dose and your grass takes it up as it’s watered in. Skip application in extreme heat, when turf is already stressed, and feed while the grass is actively growing.

When will I see results?

Color comes first. Most lawns green up within one to two weeks of the first application of High Nitrogen Fertilizer for Lawns, because liquid nitrogen is available to your grass as soon as it’s watered in, and nitrogen is the nutrient that drives blade growth and color. Thickening takes longer: filling in thin turf means new shoots, and that builds over a few applications through the growing season. Feed while the grass is actively growing to get both.

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High Nitrogen Fertilizer for Lawns 8oz $11.99