20 Best Fertilizer For Colorado Lawns (2023 Updated)

Slow-Release Nitrogen Fertilizer is good for promoting healthy growth of lawns, trees, shrubs and flowers. The non-burning slow-release nitrogen feeds up to 10-weeks and the iron delivers a long-lasting green.

The slow-release formula helps reduce mowing, conserve water and is non-leaching. Trust the fertilizer that has been proven effective for over 90-years. Size: 32 lb.

Safer Brand Lawn Restore Fertilizer is the answer to lawn revitalization and rejuvenation issues. Each bag contains up to 5,000 sq ft of coverage and provides all of the nutrients your lawn needs to revitalize to a thick turf in just one product.

The 9-0-2 NPK ratio of nutrients provides your lawn and soil with the nutrients it needs to promote healthy growth, develop a robust root system, repair a thinning lawn, and alleviate stress conditions throughout the year.

When used as directed, Lawn Restore Fertilizer is safe for children and pets immediately after application.

Fall lawns will be overjoyed with instead Happy Lawn Fall fertilizer’s natural recipe that’s rich in nutrients and derived from ingredients like alfalfa, molasses, and more. This lawn fertilizer greens, thickens, and strengthens your lawn to prepare for the chilly winter months.

Want to know the best part? Our easy to follow instructions take all of the guesswork out of lawn care. All you have to do is prep your grass by giving it a quick trim, evenly apply the product with a spreader, then lightly water it in.

It’s that simple. instead Happy Lawn Fall covers 4,000 sq. ft. , is safe for all grass types, and works with your yard’s native soil and natural growth cycles to ensure great results. Our pollinator-friendly ingredients (no pesticides!) mean your buzzing back yard ecosystem will thrive, too.

Plus, our bags are made with 25% bio-based plastic sources from sugarcane. There’s a better way to lawn, instead.

Lawn fertilizer that feeds and strengthens to help protect against future problems. Improves lawn’s ability to absorb water and nutrients and builds strong, deep roots. Formulated with exclusive all-in-one particle technology for even greening and feeding.

Apply any season to any grass type. Kid and pet friendly.

Ferti-Lome Centipede Lawn Fertilizer 15-0-15 provides Nitrogen that releases slowly over time with extra iron and traces of other elements to make your lawn greener. If your grass is turning yellow that can be a sign of iron deficiency and Ferti-Lome Centipede Lawn Fertilizer 15-0-15 will help to correct that problem.

Ferti-Lome Centipede Lawn Fertilizer 15-0-15 provides lasting nourishment for your lawn making it green all through the Summer season. Use Ferti-Lome Centipede Lawn Fertilizer 15-0-15 just twice a year in the Spring and then apply again in the Fall.

4,000 SQFT Coverage. 36-6-6 Lawn Food. Contains 4 Pre-Measured Packets. Waterproof Packaging.

This premium blended fertilizer is packed with essential plant nutrients to give you the thick, green lawn you desire. It has both fast acting nitrogen for quick greening, as well as slow release nitrogen for extended feeding for up to 3 months.

With 5% iron this fertilizer will give you a deep, dark green lawn.

This premium blended fertilizer is packed with essential plant nutrients to give you the thick, green lawn You desire. It has both fast acting nitrogen for quick greening, as well as slow release nitrogen for extended feeding forup to 3 months.

With 5% iron this fertilizer will give you a deep, dark green lawn.

Eco-friendly Slow Release, feeds up to 3 months Aids in root development Contains non-staining iron Fertilizer Analysis is 6-4-0 Milorganite 32 lb. Slow-Release Nitrogen Fertilizer is good for promoting healthy growth of lawns, trees, shrubs and flowers.

The non-burning slow-release nitrogen feeds up to 10 weeks and the iron delivers a long-lasting green. The slow-release formula helps reduce mowing, conserve water, and is non-leaching. Trust the fertilizer that has been proven effective for over 90 years.

Use on lawns, trees, shrubs and flowers to promote healthy growth 32 lb. bag covers 2,500 sq. ft. to feed your flowers, lawn or garden from corner to corner Apply granules during the growing season to encourage a rich, green lawn and strong plants Long term lawn care keeps feeding for up to 10 weeks, so you don’t have to constantly fertilize Non-burning formula protects vegetation from damage Doesn’t contain salts, so it is good for use in drought conditions or areas with water restraints Slow-release fertilizer doesn’t need to be watered-in Stays in the root zone, avoiding groundwater or well contamination.

Controls moss while helping develop a thick, green lawn. Apply any time moss is present and actively growing. For use on all lawns and grass types. 10,000 sqft coverage.

Promotes deeper green turf faster green-up brilliant color response fewer clippings and extended color for up to 12 weeks. Toughens green and thickens without excess growth. Extended time-release feeding of nitrogen lasts up to 12 weeks.

Apply any time turf is actively growing. Made in the usa.

Scotts Turf Builder Summer Lawn Food greens grass with up to 50% less water. It is powered by EveryDrop technology which helps drive water into hard dry soil. Plus it feeds to build strong deep roots.

When used as directed greening effects last up to 6 weeks results will vary due to temperature and turfgrass type.

Improve your lawn’s ability to absorb water and nutrients by using this Scotts Turf Builder Winterguard Fall Lawn Food, 5,000 Square Feet. It’s formulated with Scotts’ exclusive All-In-One Particles to help build strong, deep roots for a greener and healthier lawn next spring.

This Scotts fall lawn food can repair damage caused by heat, drought and summer activities. It thickens grass to crowd out new weeds as well as feeds your lawn to help protect it against future problems.

For the best results, it can be applied every six to eight weeks during the Fall to any type of grass. Each bag of turf builder fall lawn food is kid and pet-friendly when used as directed.

GreenView Fairway Formula Fall Fertilizer is a premium quality fall fertilizer formulation that encourages root growth for winter hardiness and quick spring green-up. Nearly 60% slow release nitrogen content with no phosphate 30-0-12 helps protect our waterways.

It promotes deep green turf, brilliant lawn color and thick, lush growth. Expect steady, even greening without surge growth and fewer clippings for up to 12-weeks.

Excellent for use as a starter fertilizer on vegetable gardens, flower beds, trees, shrubs, and new lawns. Most popular in the western states.

Vigoro Lawn Fertilizer with ASSURANCE Particle Technology feeds your lawn in 1 easy step. This technology distributes more particles per square foot, when compared to the previous Vigoro formula, to deliver even feeding and even greening with no burning guaranteed.

This fertilizer greens in just 72-hours and features a time released nitrogen formula to keep your lawn looking great. It also promotes a deep and dense root zone that is better able to reach water and find nutrients to strengthen against heat and drought.

For optimal results, feed your lawn when grass is actively growing.

GreenView Fertilizers with GreenSmart formula promote rapid root growth for a thicker, greener lawn. The lawn fertilizers have a 22-0-4 formulation which feeds for up to eight weeks and the zero phosphate formula helps protect our waterways.

Enhanced with GreenSmart, an eco-improved lawn fertilizer that recharges your soil with nutrients and helps reduce the need for watering. Apply this pet friendly lawn food in spring, summer or fall.

Ironite II contains high iron for quick greening and low nitrogen to avoid growth surge. Includes AST and beneficial microbes, allowing the soil to absorb more water and the turf to utilize nutrients that were previously locked in the soil.

Non-staining. 1-0-1. 1% urea nitrogen, 1% soluable potash, 8% calcium, 5% combined sulfur, 20% iron.

Scotts Green Max Lawn Food is a dual-action formula that feeds your lawn and provides a deep greening in just 3 days! Our lawn fertilizer contains 5% iron, a micro-nutrient that enhances the greening process so you see results fast.

Each granule is 100% nutrition, so your lawn gets all food and no filler. Apply to any grass type in the spring, summer or fall months. Recommended for many lawns as part of the Scotts Lawn Care Plan.

Unlock the nutrients in your soil with nutrilife technology, stable nitrogen gives your lawn steady feeding. Requires less water, drought resistant. Zero phosphate promote clean and safe waterways. Perfect for anytime during the year.