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The Best Weed and Feed Fertilizer (2019)

Maintaining an exuberant yard with lush green lawns is definitely hard work. But the right products can make this hard work significantly easier. Just as we animals require good food and sometimes medications to live healthy, the grass on your lawn call for weed & feed fertilizers to thrive to the fullest. These are a mixture of herbicides and fertilizers that get rid of pesky weeds from your lawn while simultaneously nourishing the soil for proper growth of ​your desired grass or plants.

In this article we have summarized the top five weed and feed fertilizers to help you nurture your plot. Who says grass is greener on the other side? With these fertilizers, grass will always be greener on your side!

Our top pick is the Scotts Turf Builder Thick'R Lawn Sun and Shade. This is a 3-in1 product with combination seed, fertilizer and soil improver, which can cover up to 1200 sq. feet.

A slightly upper-end product would be the Scotts Turf Builder Southern Triple Action. It kills several types of weeds, prevents and kills various bugs along with the basic feeding and strengthening function. It can cover up to 8000 sq. feet and suitable for use on four types of grass.

The ​Best ​Weed & Feed Fertilizer In Comparison

1) Scotts Turf Builder Thick'R Lawn Sun and Shade

Scotts Turf Builder Thick'R Lawn Sun and Shade, 12 lb. - 3-in-1 Solution for Thin Lawns - Combination Seed, Fertilizer and Soil Improver for a Thicker, Greener Lawn - Covers 1,200 sq. ft.
  • Size 12 Lbs.
  • 3-in-1 solution
  • Various grass mixes available
  • Contains 9% Nitrogen, 1% Potash, 1% Phosphate, 8.5% Calcium, 9% Sulfur
  • Comes with a spreader
  • Intended for Fall and Spring time use

This product is specifically intended for thin lawns and comes with its own spreader. It is to be applied on actively growing turf only and not near any drainage systems. Fall and Spring are the optimum time of use it works best between 60 to 80 degrees Fahrenheit. Applying twice a year would improve the lawn health substantially within a few months. Scotts provides money-back guarantee upon any instance of consumer unsatisfaction.

2) Scotts Turf Builder WinterGuard Fall Lawn Food


  • ​Size 12.5 Lbs.
  • Covers up to 5000 sq. feet
  • Suitable for any grass type
  • Contains 32% Nitrogen and 10% Potassium
  • Not for killing insects


As the name suggests, the Scotts turf builder winter guard is best to use in Fall and is concocted to repair any damage caused during the hot and arid summer. It is safe to use on any grass type but does not provide protection against any insects. Using twice during autumn; once at the beginning and once at the end, yields the best results.

3) Scotts DiseaseEx Lawn Fungicide

Scotts DiseaseEx Lawn Fungicide 5M
  • Fast acting
  • Prevents and controls several lawn diseases
  • Covers up to 5000 sq. feet
  • Does not provide insect control
  • Contains 0.31% Azoxystrobin

This product is mainly a formula to treat common diseases, including brown patch, pink patch, red thread, powdery mildew and many more. It should be applied before the diseases appear in order to prevent it or at the appearance of first signs to control the disease. Generally, these occur during Spring, so it is best to use during that time. It can be applied at 14 to 28 days intervals, but it should be taken care that no more than 37 pounds per 1000 sq. feet per year is applied.

4) Preen 2464083 Garden Weed Preventer

  • ​Size 31.1 Lbs.
  • Not for use on lawns
  • Intended for flowering plants
  • Can be used on edibles
  • Does not kill existing weeds but prevents further growth
  • Covers up to 5000 sq. feet


Preen 2464083 Garden Weed Preventer - 31.1 lb. - Covers 5,000 sq. ft

Preen Garden Weed Preventer hinders weeds from growing in flower and vegetable gardens, in ground covers and around trees and shrubs. Even though this product does not kill active weeds, it does prevent new ​ones from emerging, enabling you to avoid hand-weeding. It can be used any time of the year and should be used on flowering plants which already germinated and are 2-3 inches tall. Preen can also be applied into the soil when seeding vegetables, but not on flower seeds. It does not get washed away by rain and can perform for up to 3 months.

5) Scotts Turf Builder Southern Triple Action

Scotts Turf Builder Southern Triple Action, 26.84 lb. - Kills Dollarweed and Clover, Prevents and Kills Fire Ants, Feeds and Strengthens Lawns - Covers up to 8,000 sq. ft.

  • Size 26.84 Lbs.
  • For use on St. Augustine, Centipede, Zoysia and Carpet grass only
  • Not for Bermuda, Fescue or Bluegrass
  • Covers up to 8000 sq. feet
  • 29% Nitrogen and 10% Potassium
  • Kills several ​prevalent insects

The Scotts Turf Builder Southern Triple Action is a dry lawn fertilizer and can be used any time of the year except winter. It provides insect control along with weed prevention and can function for up to 6 months. This works against ants, fleas, crickets, worms and several other common bugs. It is mainly targeted towards Southern stresses like heat and drought and applicable for certain types of grasses only. It is best to use twice a year and during active growth period of the greens. During application, contact with people or animals should be avoided as it contains 1.352% Atrazine and 0.139% Bifenthrin.

Weed and Feed Buying Guide

​The following points will help you​ decide on ​the ​one​ best for you


1) Nutrients

Different fertilizers have different nutrient levels.

Nitrogen enhances growth of leaves and stems, and is one of the most important minerals for plans

Phosphorus accounts for a plant’s seed germination and root system development.

Potassium is involved with transporting of other nutrients and overall health of a plant by protecting it against various kinds of stressful conditions.

These are the foremost nutrients you should be looking at; commonly denoted by the N-P-K ratio. Generally, these products have labels that indicate this ratio by a number in the form of # - # - #, where the first number states the percentage of Nitrogen, second one Phosphorus and the third one stating K, i.e. Potassium. There are testers available at the market to help you find out which nutrients and how much of it your soil is lacking. So, depending on your lawn’s need, choose a fertilizer which has the suitable mix of N-P-K.

​2) Type of fertilizer

Fertilizers come in different types – a liquid form, a spike or in a granular form.

Liquid form: While the liquid forms are super fast, they tend to be expensive and have to applied frequently.

Spikes: Spikes come in bars which are inserted into the soil.

Granular form: The ones in this article are in granular form which is the cheaper option and work on plants rather delicately. Bonus characteristic: they are easy to use and have a longer shelf life.


Granular fertilizers are in turn are of two types – quick and slow release:

Quick release fertilizers have water soluble nitrogen and so provide grasses with nitrogen immediately. They break down fast and release their nutrients into the soil as soon as they are hit with water. If you are looking for a speedy remedy then you are to opt for the quick release one.

Slow release types have water insoluble nitrogen and might be covered ​by sulfur or polymer, which can last for nearly two to four months. Consumers who like to have gaps between applications or who might be unable to tend their lawns for long periods should go for the ​this option.

​3) Type of ​weeds and grass

While some fertilizers target an array of weeds, there are some which are specific. There are some which can kill weeds altogether but others will only prevent future growth, not kill the existing ones. Check the label before buying to make sure whether the product kills or prevents or does both.

It is the same in case of grass. Some fertilizers can be suitable for all grass types, but some might work against certain types. Different grasses have different needs and thrive according to certain geographical locations. Also, it should be noted that a grass of one place might be considered a weed in another place. So applying a weed killer could actually kill something that you ​contrarily knew was a grass. Moreover, a fertilizer that works well for a plant might not work as well for grass. Keep in mind, plants and grass are ​separate and hence have varying needs. Therefore, it is important to go through the labels thoroughly and choose one as per your requirement.

4) Additional Considerations

Weed and feed products are complex chemical-based substances. Using them for prolonged periods can compromise the long-term health of your lawn. Many symbiotic organisms and fungi dwell within the soil which can be killed by these weed and feed chemicals, ultimately harming the soil. You might want to save these useful organisms which otherwise help the soil by providing protection in return for their own benefit. So if you decide on a fertilizer which might be killing the beneficial microorganisms, make sure to replenish the assistance they were providing by some other means.

​Furthermore, although there are safe organic options present, for the most part, weed and feed products are chemicals and so can be hazardous if not handled properly. Some products might be harmful to tread on by people or animals, while others might be safe within minutes after application. Thus, keeping safety and outdoor exposure in mind, choose a type which is safe to be used in households ​concerning children and pets. 

Do you own any of the ​​fertilizers mentioned here? Did you choose a different one? Let us know in the comments!

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How To Get A Greener Lawn - Outdoor Ideas - October 31, 2019

[…] supposed to be for your grass, and using it to grow unwanted weeds. Check out or review article on some of the best weed and feed fertilizers to help you with this […]

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