Everything You Never Knew About Grass Spiders

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Most individuals are terrified of spiders because they are unfamiliar with these arthropods. The fact is that spiders come in various shapes and sizes, each with its own set of traits. And to cope with a spider infestation, one must first gain a better understanding of them.

In this post, we will discover Everything you never knew about grass spiders and how to deal with them.

What is a grass spider?

grass spiders

Grass spiders or Agelenopsis are a type of spider that is found all over the world. However, their population is significantly high in North America.

They get their name because they build funnel-shaped webs in tall grasses and other dense vegetation instead of trees or buildings.

Agelenopsis, also known as Funnel-web spider, is different from other spiders because they have very small webs that are not sticky, and they are agile and fast,

Grass spiders are non-poisonous, and their bites generally cause only minor distress. However, they should not be handled carelessly as any spider bite can be dangerous.

What do Grass Spiders Look Like?

Grass spiders, also known as funnel weavers, are common in North America.

They have two black stripes that run longitudinally down their abdomens, covered by chevron-shaped patterns.

The funnel weavers are slender and long, with females averaging about a half-inch to three-quarters of an inch long, while males tend to be smaller. In comparison to their body size, they have extremely long legs.

These spiders can range in color from light brown to black and often have stripes or markings on their bodies.

Grass spiders are generally mistaken for wolf spiders, which are very common in the United States. However, wolf spiders can be distinguished from grass spiders by their larger size and the fact that they do not have violin-shaped markings on their abdomen.

Life History

The Grass Spider is a type of spider that is found throughout North America.

There are approximately 1,200 identified species within the Agelenidae family, which includes grass spiders. This family is known for its funnel-shaped webs.

Grass spiders build their webs close to the ground in tall grass or other dense vegetation. The fertilized eggs hatch in the spring, and following a series of molts, the spiderlings mature into adults in late summer.

These spiders often enter structures in the fall as they search for a place to overwinter. Unlike most spiders, the adults do not overwinter and die off in the winter. Instead, the young of the year will take over as the adults die off.


Yellow striped spider outside in nature in her spider web. Argiope bruennichi also called zebra, tiger, silk ribbon, wasp spider in front of blurred background

Grass spiders are so-called because they are commonly observed in tall grass that has a strong cover with thick plants.

Interestingly, grass spiders are also found in domestic habitats.

Although a dirty environment may not attract the spiders themselves, food crumbs and other sticky residue left by drinks can attract ants – which are, in turn, food for these spiders. This can cause a grass spider infestation.

Human Connections

Grass spiders, or funnel weavers, are one of the most commonly encountered spiders in North America. While they are generally harmless to humans, their bites have been known to cause pain, swelling, redness, and itching.

Funnel weavers get their name from the fact that they build webs with a funnel-like retreat in the center. These webs are often found near the ground in tall grass or weeds.

Do Grass spiders Bite?

Grass spiders are generally considered to be harmless and will not usually bite humans unless they feel threatened.

However, there have been a few cases where grass spiders have bitten people, so it is always best to be cautious.

Are Grass Spiders Dangerous and Poisonous?

Funnel-web spider, Agelena labyrinthica with prey

While Funnel-web spiders are not toxic, they are venomous like all spiders. 

In most circumstances, their toxin presents no threat to humans. Grass spiders employ their venom to subdue prey rather than biting unwary gardeners.

Grass spiders have extremely short fangs that are unable to penetrate human skin. 

However, people with thin skin, such as the elderly and infants, are the exception; grass spider bites can be problematic in these cases.

A grass spider bite usually causes minor discomfort. Necrotic skin lesions and bacterial infections can occur in rare circumstances.

Overall, Grass spiders are a timid spider species. They don’t bite people on purpose, and they’re unlikely to do so unless threatened.

The notorious grass spider funnel web

Spider web on the dried grass in the meadow. Autumn morning. Dew on herbs. Selective focus.

Grass spiders are notorious for their funnel webs- the grass spider’s web is designed to ensnare prey.

The grass spider’s web is typically a flat sheet that is placed on the ground or against some other surface.

The webs are generally placed in strategic locations, such as near the entrance of a hole leading into the ground.

Contrary to popular belief, these webs are not sticky; however, the way they are built makes it inherently difficult for the prey to escape.

Once the prey is trapped, the grass spider can quickly crawl over and inject it with venom.

Why Are Spiders in Your Yard and Home?

Spiders are drawn to your yard and home for a variety of reasons. However, like any other living creature, this creepy crawlies require food and water to exist.

Therefore, though there can be several reasons, the prime attractions drawing grass spiders to your yard and home are food and shelter.

In an overgrown yard, spiders can find plenty of food as well as places to hide from predators and the environment.

Insect infestations can occur when pet food, standing water, or any kind of food material is left in or near your yard. And wherever there are a lot of insects, you’ll naturally find the spiders that eat them.

If you notice grass spiders in your yard, there’s a strong probability that there’s a food source for insects that have persuaded the spiders to stay.

To put it another way, if your yard is a good location for bugs to live, spiders will most likely stay around to eat them.

Another reason why grass spiders may take up residence in your grass is that there is an overgrowth of plants elsewhere in the yard.

Furthermore, funnel web spiders are also attracted to your home if there are any outdoor lights, piles of wood, rocks, rubbish, or other potential food/nest places.

Can Grass Spiders Harm Your Lawn?

Wolf spider holding it's spherical egg sac in the green grass

Grass spiders are shy, harmless arthropods that won’t hurt or kill your lawn. On the other hand, having a spider dwelling might make your outdoor space look shabby.

One reason is that grass spider webs accumulate debris such as dead leaves, twigs, grass clippings, dust, and more due to their low-lying nature and distinctive, broad pattern. 

Even the nicest yard might become unkempt over time as a result of this.

Furthermore, most individuals dislike spending time in an environment plagued by grass spiders. 

Sitting outside can seem unnerving if they’ve taken over your yard’s hardscape or gravel areas. After all, you don’t want to waste your time avoiding spider webs.

7 Effective Ways to Get Rid of Grass Spiders in Your Yard

The Female Agelena labyrinthica spider.

Despite the fact that grass spiders do not pose a threat to humankind, most homeowners desire to prevent their invasion. Fortunately, efficient landscaping and pest management measures make it simple to keep their numbers under check.

Here are a few simple pointers:

Remove any crumbs or leftovers from food and beverages.

A disorderly and dirty lawn does not attract grass spiders, but it attracts insects that grass spiders consume. For example, leftover food crumbs will attract ants, ultimately attracting the funnel weavers.

Whereas a well-kept yard will deter grass spiders and other small pests from infesting the area.

If you enjoy dining outside during the summer, make sure to clean up after yourself. To bugs, crumbs, spills, grease, and other leftovers resemble a buffet line.

Wash dishes immediately after use

Thoroughly clean your dishes immediately after use to keep grass spiders, and other insects out of your home. Even a minor delay in dishwashing during the summer months can entice bugs to take up residence. Spiders will follow them when they do.

Do not leave pet food out for long durations.

Pet food is a convenient snack for the bugs that spiders consume. To avoid pest infestation, keep it sealed in an airtight container.

Mow your lawn frequently.

Regularly mowing your garden is a great way to maintain its cleanliness and keep unwelcome insects and animals away.

This is especially important if you live in an area known to have a lot of grass spiders.

Cut vegetation around your yard

Some spider species like to establish their nests in dense foliage. The overgrowth of plants in your yard is most likely the source of your grass spider invasion.

Trim vegetation periodically to keep the area around your home clean and well-kept to control and eliminate grass spiders.

This will significantly help in driving spiders away from the denser regions.

You should also clear your lawn of garbage and leaves, as they attract insects and provide hiding places.

Remove spider webs frequently.

.It’s time to tidy up your lawn if you wake up to spider webs on it, especially if there’s dew on it. The method is time-consuming, but it successfully keeps spiders out of your yard. 

Here are three methods for removing spider webs:

  • Use a high-pressure spray to demolish and remove spider webs as you water your lawn.
  • Sweep the spider webs from the grass with a broom. Make sure you don’t damage your lawn’s grass blades by doing this.
  • Spider webs in your yard can also be removed with a vacuum or leaf blower. This is highly effective.

Chemical Options

There are various ways to get rid of spiders, but the most common methods include dusting and spraying.

Dusting is when you use a powder or spray to coat an area in order to kill the spiders. This is usually effective, but it can be difficult to reach all the cracks and crevices where spiders like to hide.

Spraying is another option that is more practical for some people. It involves using a chemical solution to kill the spiders.

Contact a professional pest management team.

If you are experiencing a spider infestation in your yard or home and finding it difficult to deal with, it is best to contact a professional pest management team.

These experts can help identify the type of spider and recommend an appropriate and efficient treatment plan.

How to Protect Yourself from Grass Spiders in Your Yard

You can do a few things to protect yourself from grass spiders when spending time in your yard.

One is to spray repellent on your clothing and skin- both will help keep the spiders away. Furthermore, wear clothes that will protect you from spiders, such as long pants and a long-sleeved shirt.

Additionally, avoid leaving piles of leaves or other debris where the spiders might like to make their home.

Finally, be sure to check inside any outdoor furniture or equipment before using it- these places are often prime spider habitats.

You can also try spraying the area around your home with an insecticide or Pesticide.

How to Get Rid of Grass Spiders in your House

Though they may be small, grass spiders can be a nuisance in your home. Here are five tips to help reduce their populations over time:

1) Clean your yard and remove any debris that can provide shelter for spiders.

2) Seal off any cracks or crevices in your house where spiders might enter.

3) Use outdoor lighting that is less inviting to insects and spiders.

4) Regularly vacuum and sweep floors and surfaces to remove webs and eggs.

5) Reduce moisture levels in your home by fixing any leaks and using a dehumidifier.


There are many different types of spiders, some more well-known than others. Grass spiders, or funnel weavers, are a type of spider that is often found in lawns and gardens.

And though these spiders may seem like an unwanted pest, they play a beneficial role in the environment, preying on other insects in your yard.

Grass Spiders typically pose no threat to humans or pets.

However, Pesticides or other non-harmful solutions are available to homeowners if you feel that spiders are a problem.

About the author

A biotechnologist by profession and a passionate pest researcher. I have been one of those people who used to run away from cockroaches and rats due to their pesky features, but then we all get that turn in life when we have to face something.