Why Do I Still Have Weeds In My Yard?

Getting rid of weeds is a pain in the neck, but it’s part of owning a home and having a yard. However, sometimes it's hard to understand why weeds continually return, seemingly out of nowhere. So, why do I still have weeds in my yard?

Weeds will continue to pop up if seeds spread into your yard on windy days. Birds can also disperse weed seeds through their droppings, which explains why weeds keep appearing despite yard treatments. Otherwise, there’s a good chance that you used the wrong herbicide when you treated your lawn and garden.

Some herbicides are meant for specific weeds, like dandelions and crabgrass. Follow along as we explore why you still have weeds in your yard and highlight some easy solutions.

Why Can’t I Get Rid Of Weeds?

If you still have weeds in your yard, it’s likely because they’re spreading from an untreated source. You can take care of the stubborn weeds in your yard by following a few key steps.

1. Airborne Seeds

No matter how hard you try to keep weeds away, the wind can still blow seeds into your yard. Many of these unwanted plants have adapted to produce seeds that can easily disperse in the wind. Dandelions are the most common examples of this happening.

If weeds keep popping up in your yard, there’s a good chance it’s because of airborne seeds. Some are fluffy, parachute-style seed tufts, while others produce “winged” seeds. Picking them is risky because you can inadvertently release seeds in the process. It's better to spray them with pre-emergent herbicides. Otherwise, you can kill existing weeds with weed killer, then remove them when they die. However, there’s nothing you can do about weeds blowing from someone else’s yard.

2. Treatment Mistakes

Did weeds appear in your yard even after treating the area with an herbicide? If so, it could be because you didn’t apply the herbicide properly, or the weather conditions were wrong. For example, the herbicide you applied will largely become useless if it rains right after application. That’s why it’s important to check the forecast before treating your yard and garden with herbicide.

There’s also a chance that you didn’t apply the product evenly, which can explain why weeds appeared in some spots, which can spread to areas that you did spray. In that case, the one section you missed can render all your hard work useless.

3. Recent Yardwork

Did you recently till your yard and notice a bunch of weeds appeared afterward? If so, then the two incidents are connected. Tilling is a great practice, but it can also unearth weeds and kill beneficial organisms, such as earthworms. You can inadvertently spread weed seeds throughout your yard after tilling the soil. Some may be too old and frail to germinate, but all it takes is a few good ones to cause big problems. You may also tear existing weeds, and the torn pieces can grow into full, healthy ones. You can till without spreading weeds if you avoid going too deep. Some people till the soil, wait for weeds to grow, pull or burn them, then plant new crops and flowers.

4. Nearby Bird Feeder/Bird Bath

A bird feeder in your yard can explain why you still have weeds, despite your best efforts. Birds eat weeds and then spread the seeds over their flight path through their droppings. Attracting birds to your yard can increase the probability of birds spreading weed seeds on your property. Think twice before setting up a bird bath and bird feeder in your yard and put wind chimes in your yard to deter birds. Deterring birds can protect your windows, fruit, trees, pets, and overall health.

5. You Have Perennial Weeds

Most people think about their favorite flowers and crops when it comes to annuals and perennials. However, weeds come in many varieties, and some are perennials. Your yard may even have a mixture of annual and perennial weeds.

You may get rid of the annuals and think the problem is resolved, but perennial weeds will come back. Pre-emergent herbicides aren’t as effective on perennial weeds, so you must treat them in other ways.

Thoroughly spray perennial weeds with a strong commercial weed killer. Repeat the treatment as many times as you need until the weeds die. Once dead, remove them from the ground without leaving any pieces in the ground to ensure they don’t return.

6. They Spread From Your Neighbor’s Yard

Weeds can spread from yard to yard, especially if your neighbor doesn’t prioritize lawn care. This can happen in several ways, but it mostly when weeds grow outward and spread beneath the ground, even if there’s a fence between your yard and your neighbor’s.

They can also spread through the wind, or if you and your neighbor use the same lawn service. Lawnmower blades are often coated with weed seeds and fragments, which can then spread to your yard. You can keep your neighbor’s weeds out of your yard by laying mulch or stones between the properties. It also helps to install landscaping fabric, but that doesn’t work beneath a healthy lawn. Ideally, talk to your neighbor if their yard is full of weeds that keep spreading to your yard.

7. Poor Lawn Health

Weeds struggle to grow in a healthy lawn, so the presence of weeds can indicate poor lawn health. Compacted soil, patchy grass, and erosion help weeds thrive and take over yards. It helps to loosen the soil and add organic matter, such as compost and peat moss, to boost soil health. Lawn aeration is also important because it can introduce more oxygen, help your lawn “breathe”, and thrive.

Some people also treat their lawns with gypsum to boost soil health and deter weeds. It’s also worth treating your lawn for weeds 1 to 3 times per year. You may want to hire a professional lawn service, as they have the right chemicals for specific weed types.

8. You Used The Wrong Herbicide

Not all weed killers are made alike, and you may have used the wrong one. You may have several types of weeds in your yard, and the herbicide you used only worked for one of them. Before you address the problem, identify the weeds you have in your yard, so you can pick the right herbicide. For example, some herbicides are meant for crabgrass, and others are meant for kudzu.

Buy a product once you identify which weed is wreaking havoc on your yard. Once you get rid of the persistent weeds, you can focus on preventative measures. Treat your yard for weeds at least once per year, but you won’t need to worry about which herbicide is best for you if you get your lawn in great shape.

Summing It Up

If you still have weeds in your yard, it’s likely due to airborne seeds or weeds from your neighbor’s yard. There’s also a chance that you or your pets tracked weed seeds through your yard. You may have also unearthed weeds and their seeds while tilling the lawn. Identify which seeds are growing in your yard to ensure you get the right herbicide.

Related Guides:

• How To Clear A Yard Full Of Weeds (Step-by-Step Guide)
• How To Prevent Weeds In The Spring