The Best “Weed and Feed” Options for the Lawn
Get your lawn looking healthy and green by choosing the right weed-and-feed product for your growing grass.
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- BEST OVERALLScotts Turf Builder Weed and FeedCheck Latest Price
- BEST FOR NEW GRASSScotts Turf Builder StarterCheck Latest Price
- EASIEST APPLICATIONScotts Liquid Turf Builder Weed ControlCheck Latest Price
Keeping your lawn looking lush and green means that you need to weed frequently and apply fertilizer at the right times of the year. Altogether, it can be an energy- and time-consuming exercise, especially if you have a large yard. Although you may be able to dig up a clump of crabgrass or dandelion by hand on occasion, it’s not plausible to hand-weed or fertilize an entire lawn regularly.
The good news is that if your lawn looks a bit drab and weedy, you can bring it back to life by using “weed and feed” fertilizers and herbicides. Designed to introduce essential nutrients into the ground that accelerate the growth of your grass, these products help you maintain thick and healthy turf, while minimizing pesky lawn weeds.
Ahead, our guide to understanding weed-and-feed products, and our top tips on choosing the best weed and feed for your yard.
- BEST OVERALL: Scotts Turf Builder Weed and Feed
- BEST FOR NEW GRASS: Scotts Turf Builder Starter
- EASIEST APPLICATION: Scotts Liquid Turf Builder Weed Control
- BEST FOR COOL-SEASON GRASS: GreenView Fairway Formula
- BEST FOR WARM-SEASON GRASS: Scotts Turf Southern Triple Action
- BEST FOR WEED PREVENTION: Preen One LawnCare
Before You Buy
Maintaining a healthy lawn includes mowing, weeding, watering, and fertilizing. However, fertilizing isn’t always necessary. Over-fertilizing your lawn will make the grass grow more vigorously, causing you to have to mow more frequently or lead to run-off which ends up in your local watershed. Excessive fertilizing can result in lawn burn, which is when the nitrogen and salt levels in the soil are too high and cause yellow to brown strips or patches of dead grass. A lawn, as with any type of plant, only needs fertilizing if the soil lacks the vital nutrients to help it grow. In situations like these, fertilizing your soil is essential.
Types of Weed and Feed
Weed-and-feed products come in two forms: liquid and granular. Although the liquid forms are easier to apply and provide faster results, it’s more economical to use the granular form. Spray or liquid weed and feed are designed for small yards. Granular weed and feed covers more area, often 5,000 square feet or more, and are available in 18-lb bags and larger. Granular versions offer a better value for your money, but you do need to water your lawn after application for it to penetrate the grass.
Some weed-and-feed options out there feature slow-release formulas so you don’t have to fertilize as often. However, to achieve good results plan on treating your lawn at least once every eight weeks from the start of spring.
Key Shopping Considerations
Type of Turf Grass
The best weed and feed for your lawn is determined by the the type of grass you have. Grass species have different nutrient requirements, so not all of them are safe for every species of grass. Using the wrong product can damage your grass. In general, grass species are divided into two categories: warm season and cool season. The seasons do not refer to the time of year, but the climate and average soil temperature range.
- Warm-season turfgrasses grow best with average soil temperatures between 80 and 95 degrees Fahrenheit. Warm-season grasses thrive in warmer climates found in the Southeastern and Southwestern United States and include Bahia grass, Bermuda grass, carpet grass, Saint Augustine grass, and zoysia grass (Japanese lawn grass).
- Cool-season turfgrasses grow best with average soil temperatures between 60 and 75 Fahrenheit. Cool-season grasses thrive in the cooler climates of the Midwest and Northern regions of the United States. Some cool-season grasses are Kentucky bluegrass, perennial ryegrass, and tall and hard fescue.
Selecting a fertilizer and weed killer that’s compatible with your grass species will give you far better results.
To grow a lush lawn, your soil needs to have essential nutrients. Fertilizers temporarily add nutrients to the soil. Fertilizers denote their nutrient ratios as NPK. This denotation represents the percentage of nitrogen (N), phosphorus (P), and potassium (K) in the product. This is how the nutrients help grass:
- Nitrogen helps the grass to grow properly and develop a green color.
- Phosphorus helps to develop strong root systems.
- Potassium protects plants from disease, drought, and cold.
There are at least 11 states that ban phosphorus fertilizer use or sale. Luckily, many lawn weed and feed products available have adapted to this and have removed phosphorus from the product. Don’t worry—the weed and feed will still green up and thicken the grass without the additional phosphorus.
Fertilizers can also contain secondary elements and micronutrients needed for healthy growth such as sulfur, calcium, magnesium, boron, iron, molybdenum, zinc, copper, chloride, nickel, and manganese. To find out exactly what nutrients your lawn needs can be determined by conducting a soil test. You can either purchase a test to use at home or take a soil sample to your local cooperative extension testing office.
Many fertilizers also have built-in herbicides or weed preventatives. Some products are better at killing certain types of weeds and pests than others. In general, most weed and feed target common types of broadleaf weeds including plantain, chickweed, creeping charlie, dandelions, and clover. Weed preventers, or preemergent weed killers, block weed seeds that are already in the soil, like crabgrass, poa annua, chickweed, and henbit, from germinating. Identify the type of weeds that are infesting your lawn and then make sure you choose a product that’s made to take care of it.
Our Top Picks
1. BEST OVERALL: Scotts Turf Builder Weed and Feed
Scotts is a well-known grass care brand that has an extensive range of lawn care products, including fertilizers and weed killers. This product combines the strongest weed and feed available from Scotts to knock out dandelions, clover, and other common weeds while feeding your lawn. Scotts Turf Builder is across the board one of the most popular and economical fertilizer and weed control combination products available for purchase. Although it works on many common turf grasses such as fescue, centipede grass, Kentucky bluegrass, ryegrass, Bahia grass, zoysia grass, and Bermuda grass, it’s not recommended for some warm-season grasses such as Saint Augustine grass, Dichondra grass, or carpet grass.
2. BEST FOR NEW GRASS: Scotts Turf Builder Starter
New grass needs a bit of TLC to get off to a good start. Scotts Turf Builder Starter is designed for when planting new grass. It features a 2-in-1 formula that feeds grass and prevents crabgrass and dandelions for up to six weeks. You can use it on any grass type, sod, and grass plugs. Scotts Turf Builder Starter works best if applied right before watering in newly planted grass for the first time.
3. EASIEST APPLICATION: Scotts Liquid Turf Builder Weed Control
Easily fertilize your lawn while killing dandelions and clover. Scotts Liquid Turf Builder gives your lawn a quick boost of nitrogen while controlling weeds. It is easy to apply, too—simply attach the applicator to your garden hose and spray. Scotts Turf Builder helps to control buckhorn, chickweed, clover, dandelion, ground ivy, henbit, knotweed, and more. Scotts Liquid Turf Builder Weed Control can be used during any season, with almost any grass type. When used as directed, it won’t burn the lawn, and it’s safe to use around children and pets.
4. BEST FOR COOL-SEASON GRASS: GreenView Fairway Formula
GreenView Fairway Formula fertilizes your lawn, kills over 200 species of lawn weeds, and prevents crabgrass from growing. It contains both slow-release and quick-release nutrients that provide nutrients for up to 12 weeks at a time. Due to the slow-releasing formula, GreenView Fairway Formula is best for use on established lawns that have a healthy root system. Using it on new grass may result in burning and stunted growth. This product is safe for use on cool-season grasses only.
5. BEST FOR WARM-SEASON GRASS: Scotts Turf Southern Triple Action
Warm-season grasses need a weed and feed that can stand up to heat and drought conditions, while building a thick and green lawn. Scotts Turf Southern Triple Action is made for southern lawns and is safe for use on Saint Augustine grass, zoysia grass, centipede grass, and carpet grass. However, it is not recommended for use on Bermuda grass. This product also contains an insecticide that targets fire ants, mole crickets, sod webworms, fleas, armyworms, and more and it keeps them away for up to six months.
6. BEST FOR WEED PREVENTION: Preen One LawnCare
This weed and feed product works best on lawns where weeds are already growing and taking over the yard. Preen One is a preemergent herbicide that can be applied to established turfgrass to control and eliminate over 250 weeds, including dandelions, and has a low-release fertilizer that will feed your lawn for up to eight weeks. This weed and feed is safe for most types of cool- and warm-season grasses, but it is not recommended for use on Saint Augustine grass, Dichondra grass, or carpet grass.