Cool Season Grass - Lawn Fertilizers - The Home Depot

Question 1

When is the best time to fertilize my lawn?

Accepted Answer

The best time to fertilize your lawn depends on your grass type and time of year. Apply cool-season grass fertilizer once in the early spring to help your lawn recover from winter, and again in fall for root growth and winter prep. Apply warm-season grass fertilizer once in the late spring to early summer when your grass is fully green and actively growing, and again in mid-summer. Never fertilize your lawn during a drought or extreme heat, and always water your lawn after applying fertilizer unless you are using a liquid product.

Question 2

What do the N-P-K numbers on fertilizer bags mean?

Accepted Answer

The N-P-K numbers represent the percentage of the three essential nutrients in the fertilizer: Nitrogen (N), Phosphorus (P), and Potassium (K). The ideal ratio for healthy plant growth depends on your lawn's unique needs and the time of year. Nitrogen promotes leafy green growth and overall plant vigor, phosphorus boosts root development and flower and fruit production, and potassium improves disease resistance and overall plant health. Your local garden and lawn expert is here to help you select the blend with the right ratio for your goals.

Question 3

When should I use an all-purpose lawn fertilizer versus a fertilizer designed to green my lawn quickly?

Accepted Answer

An all-purpose lawn fertilizer is perfect for general maintenance, giving your lawn a balanced blend of nutrients to support steady growth throughout the season. For a rapid improvement in color, select a quick greening fertilizer specifically formulated to deliver a fast boost of nitrogen. However, expect an all-purpose fertilizer to provide longer-lasting benefits.

Cool Season Grass Lawn Fertilizers

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1 & Up

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4 & Up

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Brand

Price

Lawn Fertilizer Use

Season Use

Compatible Grass Type

Delivery Method

Nitrogen (N)

Time release

Fertilizer Weed Control

Organic

Emergent Type

Fertilizer Formula

Package Size (lb.)

Safe For

Safe for Edibles

BIOADVANCED24 lbs.​ Granules 5-​in-​1 Weed and Feed Dry Lawn Fertilizer for Northern Lawns

VigoroDry Lawn Fertilizer 30-​0-​4 12M 33.​6 lb.​

BIOADVANCED9.​6 lbs.​ Granules 5-​In-​1 Weed and Feed for Northern Lawns

VigoroDry Lawn Starter Fertilizer 24-​25-​4 12M 36 lb.​

Simple Lawn SolutionsLawn Booster 32 oz.​ Liquid Lawn Fertilizer Green Booster Iron Ready To Spray 3,200 sq.​ ft.​

VigoroDry Lawn Starter Fertilizer 24-​25-​4 4M 12 lb.​

VigoroDry Lawn Fertilizer 30-​0-​4 4M 11.​2 lb.​

Simple Lawn SolutionsLawn Booster 128 oz.​ Liquid Lawn Fertilizer Green Booster Iron 12,800 sq.​ ft.​

Simple Lawn SolutionsLawn Food 32 oz.​ Liquid Lawn Fertilizer Growth and Green 27-​0-​0 Ready To Spray 3,200 sq.​ ft.​

Simple Lawn SolutionsLawn Food 128 oz.​ Liquid Lawn Fertilizer Growth and Green 27-​0-​0 12,800 sq.​ ft.​

Simple Lawn SolutionsLawn Food 32 oz.​ Liquid Lawn Fertilizer Feed and Sustain 14-​0-​14 Ready To Spray (3,200 sq.​ ft.​)​

Simple Lawn SolutionsLawn Food 128 oz.​ Liquid Lawn Fertilizer Feed and Sustain 14-​0-​14 12,800 sq.​ ft.​

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BIOADVANCED24 lbs. Granules 5-in-1 Weed and Feed Dry Lawn Fertilizer for Northern Lawns

VigoroDry Lawn Fertilizer 30-0-4 12M 33.6 lb.

BIOADVANCED9.6 lbs. Granules 5-In-1 Weed and Feed for Northern Lawns

VigoroDry Lawn Starter Fertilizer 24-25-4 12M 36 lb.

Simple Lawn SolutionsLawn Booster 32 oz. Liquid Lawn Fertilizer Green Booster Iron Ready To Spray 3,200 sq. ft.

VigoroDry Lawn Starter Fertilizer 24-25-4 4M 12 lb.

VigoroDry Lawn Fertilizer 30-0-4 4M 11.2 lb.

Simple Lawn SolutionsLawn Booster 128 oz. Liquid Lawn Fertilizer Green Booster Iron 12,800 sq. ft.

Simple Lawn SolutionsLawn Food 32 oz. Liquid Lawn Fertilizer Growth and Green 27-0-0 Ready To Spray 3,200 sq. ft.

Simple Lawn SolutionsLawn Food 128 oz. Liquid Lawn Fertilizer Growth and Green 27-0-0 12,800 sq. ft.

Simple Lawn SolutionsLawn Food 32 oz. Liquid Lawn Fertilizer Feed and Sustain 14-0-14 Ready To Spray (3,200 sq. ft.)

Simple Lawn SolutionsLawn Food 128 oz. Liquid Lawn Fertilizer Feed and Sustain 14-0-14 12,800 sq. ft.