5 Weed Killer Sprays to Buy: Buyer Guides & Reviews

Everyone who enjoys gardening and loves to spend hours in the garden, tending to their plants and lawn, already knows that there is nothing as annoying as the never-ending battle with garden weeds. From the lovely flower bed to between the garden rocks and in the cracks on the pathway, these resilient and pesky weeds can grow anywhere. Moreover, not only do they look unappealing but weeds also absorb important nutrients from the ground, leaving your plants with a scare supply of nutrients, which ultimately leads them to wither and even die. They also provide pests and rodents with an excellent hiding spot!

Luckily, putting an end to weeds in your garden is not as difficult as you may have imagined. With the right weed killer spray, you can easily get rid of them for good!

Weed Killer Spray Reviews 2019

Scroll down to check out reviews of some of the best weed killer sprays and learn all about them!

Doctor Kirchner Natural Weed Killer Spray
  • FEATURESEffective and fast-acting
    Does not translocate
    Natural and chemical-free
Ortho Weed Crabgrass Control
  • FEATURES Does not damage grass
    Effective and fast-acting
    Comes with a trigger applicator
Spectracide Weed & Feed
  • FEATURESRelatively inexpensive
    Nozzle attaches directly to the bottle
    Application time is only a few minutes

1. Doctor Kirchner Natural Weed Killer Spray

Doctor Kirchner Natural Weed Killer Spray


  • Manufacturer: Doctor Kirchner Natural
  • Item Weight: 22 pounds
  • Shipping Weight: 23 pounds
  • Customer Reviews: 4.4 stars out of 5 on Amazon

As the name suggests, Doctor Kirchner Weed killer Spray offers a natural and safer alternative for killing weeds. Manufactured in the US, this weed killer is water-safe, chemical-free, and does not harm the environment in any way. Furthermore, it is safe to be used around children and pets. The product is shipped all around the country and is available in different sizes with packs ranging from 1 quart to 5 gallons.

The best part about Doctor Kirchner Weed killer Spray is that it comes ready-to-spray so you can forget about the hassle of measuring and mixing it with water. It uses a solution of vinegar and ocean water to effectively get the job done. It is relatively fast-acting, displaying visible results in just a few hours and enjoys a long shelf life and can last for years.

  • Effective and fast-acting
  • Does not translocate
  • Natural and chemical-free
  • Comes in multiple sizes
  • Typically not for lawns
  • Relatively expensive


2. Ortho Weed Crabgrass Control

Ortho Weed Crabgrass Control


  • Manufacturer: Ortho
  • Item Weight: 10.5 pounds
  • Shipping Weight: 6 pounds
  • Customer Reviews: 3.4 out of 5 stars on Amazon

Ortho Weed killer spray is a fast-acting formula that starts working in only a few hours. It works well for lawn, killing crabgrass, dandelions, and other kinds of weeds. It is ready-to-use, thereby sparing you the struggle of diluting the spray. Also, it comes with a trigger applicator that allows effective spot treatment.

  • Does not damage grass
  • Effective and fast-acting
  • Comes with a trigger applicator
  • Needs to be applied multiple times for some weeds


3. Spectracide Weed & Feed

Spectracide Weed & Feed


  • Manufacturer: United Industries
  • Item Weight: 2.7 pounds
  • Shipping Weight: 2.8 pounds
  • Customer Reviews: 3.3 out of 5 stars on Amazon

Spectracide is another ready-to-use weed killer spray. The best part about this spray is that it not only helps get rid of weeds but also feeds the lawn. Since it is made using a 20% nitrogen formulation, this weed killer acts as a fertilizer, helping your plants thrive and flourish. 32 ounces of Spectracide can cover up to 7,500 sq. ft. of land. However, some users claim that this weed killer can damage garden plants.

  • 2-in-1 weed killer and fertilizer
  • Relatively inexpensive
  • Nozzle attaches directly to the bottle
  • Application time is only a few minutes
  • Excessive use can damage the lawn and beneficial plants


4. Roundup For Lawns RTU Wand

Roundup For Lawns RTU Wand


  • Manufacturer: Roundup
  • Item Weight: 12.5 pounds
  • Shipping Weight: 12.5 pounds
  • Customer Reviews: 3.1 out of 5 stars on Amazon

Roundup weed killer spray gets the job done! The ready-to-use formula comes with a wand applicator to assist in the application. Perhaps, one of the biggest advantages of using this weed killer spray is that it becomes rainproof in as little as three hours. However, keep in mind that this product is one of the more concentrated weed killer sprays therefore, it is better to use it away from garden plants.

  • Highly effective
  • Quickly becomes rainproof
  • Prevents weeds from returning for a long time
  • Can damage desired plants
  • Sprayer needs batteries to work


5. Weed Slayer Organic Herbicide

Weed Slayer Organic Herbicide


  • Manufacturer: Argo Research International
  • Item Weight: 5.2 pounds
  • Shipping Weight: 5.5 pounds
  • Customer Reviews: 5 out of 5 stars on Amazon


Argo Weed Slayer requires to be mixed with water. It is a certified organic herbicide that offers a safer alternative to glyphosate. It is a plant-based formula that travels through weeds to target the roots, making sure they don’t grow back. However, while this weed killer has 5 on 5 stars rating, only a couple of users have rated the product.

  • Effective
  • Does not contain harsh chemical
  • Not ready-to-use
  • Only a few reviews on Amazon


Best Weed Killer Spray

Here’s our pick for the best weed killer spray in 2019.

  • Doctor Kirchner Natural Weed Killer Spray

Criteria Used For Selecting the Best Weed Killer Spray

All the weed killer sprays mentioned above are highly effective in putting an end to those pesky weeds in your garden. We have selected them based on the following criteria:

  • Performance
  • User reviews
  • Ease of use

FAQs about Weed Killer Sprays

How to use weed killer sprays?
Every weed killer spray comes with manufacturer instructions. It is advisable to follow them closely to get the best results.
Does weed killer spray work?
Absolutely! In fact, using weed killer sprays is one of the best options for getting rid of weeds.
Do I need a weed killer spray gun?
Yes, for proper application, you may need a weed killer spray gun. Some weed killer spray brands offer applicators or spray guns with the product, otherwise, you can purchase it separately.

It is almost impossible to grow a beautiful garden with lovely plants and colorful flowerbeds when it is ridden with weeds. Sure, they are sturdy and resilient, growing back over and over again. However, with the best weed killer sprays, you can get rid of weeds in only a few days!

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