5 Best Dollar Weed Killer for St AugustineGrass

Best dollar weed killer for St Augustine grass

Weeds can be termed as things that can significantly decrease the overall value and beauty of your garden. One should never hesitate in picking them out. These days, just about every lawn has issues with weed growing, and that isn’t good for your lawn.

Weeds not only grow but steal the nutrients for your grass, which means grass doesn’t grow quickly. So, for your grass to grow well, it is important to eradicate all the unnecessary weed.

Just like many other types of weeds, dollar weed is another type that causes headache to lawn owners when it grows in their St Augustine grass lawn. Controlling weed is a big issue in St Augustine grass lawns, and the ideal solution to control weeds is by using a dollar weed killer for St AugustineGrass that will eradicate all the dollar weed without damaging or removing the grass itself.






VPG Fertilome 405-HE 1 Gallon Weed Out (Currently Out of Stock)

8.98 pounds

4.5 x 12 x 7.5


Ortho Weed B Gon Weed Killer for Lawns (Available)

9.1 pounds

4.8 x 12 x 8.75


Scotts Turf Builder Weed Killer (Dollar Weed - Available)

26.6 pounds

18 x 4 x 12


Southern AG Atrazine St Augustine Grass Weed Killer (Available Soon)

9.48 pounds

4.2 x 7.4 x 11.9


Primesource Quinclorac 1.5L Liquid Killer (Available Soon)

5.19 pounds

8.8 x 6.4 x 3.5


List of Top 5 Dollar Weed Killers for St Augustine Grass

Following is the list of the five best dollar weed killers for St Augustine grass currently available.

1. VPG Fertilome 405-HE 1 Gallon Weed Out

The lawn weed killer by VPG Fertilome is very effective in killing many different kinds of weeds. It works well on St Augustine grass with dollar weed, hence killing all the weed with ease.

The ingredient most prevalent in this weed killer is Trimec, which is a combination of three different weed killers, and that is the reason why this weed killer eradicates various kinds of weeds including dollar weed.

 Convenient Application
Works on multiple weed types
Not inexpensive

2. Ortho Weed B Gon Weed Killer for Lawns

There are many weed killers that also kill the grass when applied in lawns. That kills everything, which is not what most people want to do. The Ortho Weed B Gon weed killer effectively eradicates dollar weed and other weeds from the lawn while making sure that the St Augustine grass stays intact.

If applied as directed, it does not kill the grass in any way. Although it is not the quickest as Ortho suggests, it still does its job well and ensures a slow death for the dollar weed. Most importantly, it kills weeds to the root, which makes sure they don’t grow again.

Works on multiple weed types
Does not kill grass
Takes more time to kill

3. Scotts Turf Builder Weed Killer (Dollar Weed)

If you are looking for an ideal product that will rip off all the weed from your St Augustine grass lawn, the Scotts Turf Builder weed killer is a very good option for you. It not only kills dollar weed and prevents it from growing but also feeds the existing St Augustine grass.

Not only does this weed killer kill weed, it also kills fire ants and fleas for up to six months. Its price is a bit on the high-end, but if you’re looking for a solid solution to your dollar weed issues, this weed killer is a great solution.

Kills weeds and preserves grass
Feeds grass
Makes grass robust
Not recommended for Bermuda Grass

4. Southern AG Atrazine St Augustine Grass Weed Killer

Looking for an affordable solution for your St Augustine grass weed problems? The weed killer by Southern AG is a good affordable solution. It does not work immediately to remove the grass but takes some time to suppress them.

The 4% Atrazine added to the weed killer acts as a pre-emergent and also as a post-emergent herbicide. One key thing to remember is that one should not apply this weed killer when the St Augustine grass is dormant or else it wouldn’t have any effects.

Also applied on Bermuda Grass
Takes more time to suppress weeds

5. Primesource Quinclorac 1.5L Liquid Killer

The Primesource Quinclorac weed killer is mainly used for killing Crabgrass, but it can also be used for eradicating dollar weed. Another important thing about this weed killer is the fact that it doesn’t suppress or damage St Augustine grass at all, which makes it a good option to be used on the St Augustine grass dollar weed.

Adding methylated seed oil will significantly enhance the performance of the weed killer. It works well on crabgrass and dollar weed but is also capable of suppressing other weeds such as dandelions, bindweed, and clover.

For residential and non-residential turf grass
Post-emergent herbicide
Works on other weed types as well
Very Expensive

Final Verdict

There are so many dollar weed killers for St Augustine grass available. Many also kill the grass itself, but we have chosen the best weed killers that preserve grass but also feed it in some products’ cases. Their effects also depend on how you apply them, so make sure to read the guidelines given on the product pages in detail before applying them.


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