Can I Use Preen Weed Preventer On My Lawn? (Landscaping Advice)

Preen weed preventer is a special kind of herbicide that you can use to keep your lawn looking healthy, green and weed-free. It’s formulated for use on lawns, not in gardens or vegetable patches. 

It works by killing the roots of weeds that have already started growing through your grass, thereby preventing them from spreading any further. 

Preen weed preventer can effectively prevent and control weeds in your lawn and garden.
Regular weeding and lawn care practices, such as mowing at the appropriate height and aerating your lawn, can also help prevent weed growth.
It is important to apply Preen weed preventer correctly and at the appropriate time to ensure its effectiveness.
Preen weed preventer does not kill existing weeds; it only prevents new ones from growing.
Keep pets away from treated areas until the product has been watered in and the soil is dry to ensure their safety.

This means it can prevent new weeds from popping up and also gets rid of existing ones. Preen weed killer is a great option for anyone who wants to avoid using chemicals or harsh pesticides on their lawn without sacrificing its appearance – especially when compared with other products such as Roundup!

Can I Use Preen Weed Preventer On My Lawn At Night?

If you’re going to apply Preen Weed Preventer at night, make sure the lawn is dry. It’s best not to spray this product in windy conditions or while it’s raining. You also don’t want to spray it in direct sunlight because that causes algae growth on plants and soil (which is bad for your lawn).

Use aerating shoes to aerate your lawn if you don’t want to use a machine. This simple and affordable method can help prevent soil compaction and promote healthier grass growth.

Can I Use Preen Weed Preventer On My Lawn In The Rain?

If you are applying Preen Weed Preventer as a preventative treatment over an area of your lawn, it is best to apply on a dry day. The product needs time to settle in before rain or heavy dew can wash it away.

However, if you apply the weed preventer in the rain, or after a heavy dew has settled on your lawn, it may not be as effective at preventing weeds from growing up through the soil and will take longer for any results to show up.

Applying Preen Weed Preventer

Can I Use Preen Weed Preventer On My Lawn If It’s Sunny?

If you’re going to apply Preem Preen Weed Preventer in the sun, be sure to do so at least six hours after sunrise or before sunset. The product will not burn your plants if applied during the daytime, but many people feel that it’s better to avoid spraying in direct sunlight. 

Also, do not spray when there is a strong wind; this can cause the chemicals to drift onto other areas of your lawn.

If you want to use a garden fork to aerate your lawn, make sure to use a fork with at least four tines and to space the holes out evenly to avoid damaging your lawn.

Can I Use Preen Weed Preventer On My Lawn If It’s Windy?

Yes, you can. However, it may be more difficult to apply the product because of windy conditions. If it is windy when you are applying Preen Garden Weed Preventer, make sure that you use a larger amount of product as directed on the label and/or wait until after the wind dies down before applying.

Can I Use Preen Weed Preventer If There Are Wild Animals In My Garden?

If you have wild animals in your garden, the best time to apply Preen weed preventer is at night. You should also make sure to wear gloves while applying this product because it will be effective for up to six months after application. 

If there are wild animals around, avoid applying it when windy weather approaches or else they might catch on to your chemical warfare!

Can I Use Preen Weed Preventer If There Are Pets In My Garden?

Do not use this product if you have pets that frequent your lawn. The animal may ingest it and become ill as a result.

Do not use this product on lawns frequented by children or elderly people. They are more susceptible to harm from pesticides than adults are, so keeping them away from the area will help protect them from any potential damage caused by pesticides like Preen Weed Preventer Plus Fertilizer with Grass Seed Control & Crabgrass Preventer (EPA-registered), which contains herbicides that could cause health problems for these groups of people.

Mowing your lawn regularly can also help control weeds by preventing them from going to seed. Try to mow at a height of 2.5 to 3 inches to promote healthy grass growth and reduce weed growth.

What Is The Best Time To Apply Preen Garden Weeding Preventer For Maximum Effectiveness?

The best time to apply Preen Garden Weeding Preventer is just before the weeds start growing. This will ensure maximum effectiveness, as it can be difficult for this product to work if you apply it after the weeds have started growing. 

You should also avoid applying in the winter or summer months, as these are also times when weeds are not likely to grow anyway.

Can I Use Preen Garden Weed Preventer On My Lawn?

Preen Weed Preventer can be used on your lawn. If you have a lawn that is not covered in weeds, Preen Weed Preventer will work great for it! However, if you have a lawn that is covered in weeds, we recommend using a different product like Preen Lawn Solution Plus or another weed killer from our website.

Is This Product Harmful To The Environment?

This product is not harmful to the environment. It is non-toxic, biodegradable and does not leave any residue in soil or water.

It’s safe for pets and children, too! Preen Garden Weed Preventer is an organic herbicide that contains no synthetic chemicals or petroleum distillates which means it will not harm your lawn or animals when used as directed.

Do I Need To Wear Gloves While Using This Product?

Yes, you can wear gloves when applying this product. If you are applying it outside, however, it is not recommended that you wear gloves while using Preen Garden Weed Preventer because they may absorb moisture and become slippery when wet. 

It’s best to apply the product using your bare hands or a tool that won’t get in the way of your ability to use your hands to work with the weeds in order to kill them quickly and efficiently.

If you’re using starter fertilizer on your established lawn, make sure to follow the manufacturer’s instructions carefully, as adding too much can do more harm than good. Also, be aware that using too much fertilizer can contribute to lawn runoff and environmental pollution.

How Long Will It Take For The Results To Show Up?

How long it takes for weeds to die depends on the type of weed and the season. For example, broadleaf weeds will be killed immediately by Preen Garden Weed Preventer, whereas grasses may take up to a few weeks. 

In most cases, you can expect your lawn to look much better in about seven days after application. However, it will take longer (up to two months) for annuals such as chickweed and dandelion.

It’s best not to apply this product when conditions are wet or if rain is forecast within 24 hours of application as this could affect its effectiveness. Also note that this product works best on warm sunny days (not too hot).

How Long Does Preen Garden Weed Preventer Last?

Preen Garden Weed Preventer is formulated to be an effective broad-spectrum herbicide. This means that it should effectively kill most of the weeds in your garden, but not harm your plants or vegetables. It lasts up to 6 weeks and can be applied as early as April 1st (depending on where you live).

Does Preen Garden Weed Preventer Work On Annual Weeds?

The answer to this question is yes. Preen Garden Weed Preventer only kills perennial weeds, so it will not work on annual weeds. However, if you have a large number of perennial weeds growing in your lawn or garden patch that need to be removed before they cause damage, then Preen Garden Weed Preventer can help you get rid of them quickly and effectively.

Can I Use Preen Garden Weed Preventer In My Vegetable Patch?

You can also use Preen Garden Weed Preventer on your vegetable patch. However, we do not recommend using it before or after the vegetables have been planted as there is a chance that it might harm them. To be on the safe side, you should wait until after the harvest season before applying Preen Garden Weed Preventer to your soil.

Can I Use Preen Garden Weed Preventer On My Lawn In The Winter?

While there are some who will tell you that it’s possible to use Preen Garden Weed Preventer in the winter, we recommend against it. The product is not designed for use in cold weather and as such can be detrimental to your lawn if used during these times.

If you’ve already applied this product and see damage on your lawn, don’t worry! There are ways to fix the problem. If left untreated, however, it could cause permanent damage to your lawn’s root system and leave holes in patches of grass where weeds grow through easily. 

For best results treat your yard with a different method of weed prevention (such as Roundup Ready or Ortho Weed B Gon) after using Preen Garden Weed Preventer

Watering your lawn with softened water can be beneficial because it reduces the amount of minerals in the water that can build up in your soil and harm your lawn, but make sure to check your water softener settings and use enough water to avoid over-salting the soil.


So, to answer the question “Can I use Preen Garden Weed Preventer on my lawn?”: Yes, you can! But make sure you read the instructions carefully and follow them closely. If you have any questions at all about using this product, we encourage you to call us so that one of our trained representatives can help answer them for you.

Further Reading

Read this guide from Preen on how to control spring weeds in the lawn for more tips on preventing and treating weeds in your lawn.

Check out Obsessed Lawn’s article for some tips on how to use Preen garden weed preventer effectively and apply it correctly to keep your lawn weed-free.

Wondering if Preen weed preventer will harm your grass? This article from Lawn Mower Guru covers whether Preen kills grass and what you can do to protect your lawn.


What is Preen weed preventer?

Preen weed preventer is a herbicide that is designed to prevent weed seeds from germinating in your lawn and garden.

How does Preen weed preventer work?

Preen weed preventer works by creating a barrier on the surface of the soil that prevents weed seeds from growing. It does not kill existing weeds.

How do you apply Preen weed preventer?

To apply Preen weed preventer, you should first remove any existing weeds from the area to be treated. Then, apply the product to the soil surface according to the package instructions.

When should you apply Preen weed preventer?

Preen weed preventer should be applied in early spring and again in late spring or early summer for best results. Do not apply it to newly seeded lawns or areas where you plan to plant anything for at least 8-12 weeks.

Is Preen weed preventer safe for pets?

Preen weed preventer is generally safe for pets when used as directed, but you should keep your pets away from the treated area until the product has been watered in and the soil is dry.