What Is the Red, Smelly Thing Growing in My Backyard?

 

Moisture and Warm Weather

Many fungi become more active when moisture and temperature conditions are favorable.

After rainfall oMany fungi become more active when moisture and temperature conditions are favorable.

After rainfall or a period of humid weather, a stinkhorn may develop its visible fruiting body very quickly.

The underground fungal network or mycelium may have been present for much longer. What appears suddenly is simply the reproductive structure emerging from the growing medium.

### Fresh Wood Chips or Mulch

Wood chips and organic mulch provide food for many decomposer fungi.

If you recently spread mulch around your garden, the material may contain fungal spores or already harbor fungal growth.

This doesn't automatically mean the mulch is contaminated or defective. Fungi are a normal part of the decomposition process.

### Decaying Organic Material

Stinkhorns can also appear around buried wood, old tree roots, leaf litter, and composting plant material.

Their presence is often a sign that organic material is being broken down and nutrients are being recycled.

The fungus doesn't necessarily indicate that your garden is unhealthy or that your plants are in danger.

## Are Red Stinkhorn Mushrooms Dangerous?

This is probably the first question most homeowners ask when they discover one.

The good news is that **stinkhorns are generally not considered a threat to healthy garden plants**. They are primarily decomposers, using organic material rather than attacking living plants.

However, there are a few important precautions to keep in mind.

### Don't Eat an Unidentified Mushroom

Never assume a wild mushroom is edible because it looks familiar or smells a particular way.

Some mushrooms can resemble one another, and identification mistakes can have serious consequences.

Although some stinkhorn species are reported to be edible at particular developmental stages in certain culinary traditions, this does not mean an unidentified red fungus in your garden is safe to eat.

Avoid consuming it unless a qualified expert has positively identified the species and confirmed appropriate food-safety guidance.

### Keep Curious Children and Pets Away

If young children or pets explore your garden, prevent them from chewing or swallowing unfamiliar fungi.

The appearance of a stinkhorn alone doesn't establish that it is poisonous, but wild mushrooms can be difficult to identify reliably.

If a child or pet eats an unidentified mushroom, contact a poison information service or medical or veterinary professional promptly. Don't wait for symptoms to develop.

### Is the Smell Harmful?

The odor is usually unpleasant rather than an indication of a dangerous airborne toxin. Simply noticing a stinkhorn in an outdoor garden isn't generally a reason to panic.

If the smell bothers you, avoid handling the fungus directly and consider removing the visible growth.

People with asthma, allergies, or sensitivity to strong odors may prefer to keep their distance.

## How to Get Rid of Red Stinkhorn Mushrooms

If the fungus doesn't bother you, you can generally leave it alone.

Stinkhorns are part of the natural decomposition process, and the visible fruiting body usually doesn't remain for very long.

However, if the smell is unpleasant or the fungus is growing in a frequently used area, you have a few practical options.

### 1. Remove the Visible Mushroom

Put on disposable or washable gloves, gently lift or cut away the visible fruiting body, and place it in a sealed bag for disposal.

Avoid touching your eyes or mouth while handling it, and wash your hands afterward.

If you have pets or children, dispose of the fungus where they cannot retrieve it.

### 2. Check the Mulch

If stinkhorns keep appearing in one location, inspect the surrounding mulch for decaying wood and persistently wet material.

You don't necessarily need to remove all your mulch. Organic mulch is beneficial for many gardens, and fungi are a normal part of its decomposition.

If the area remains excessively wet, improving drainage and avoiding unnecessary watering may help make conditions less favorable for fungal growth.

### 3. Avoid Unnecessary Fungicides

Applying fungicides is generally not a practical solution for stinkhorns growing in mulch.

The fungal network may extend through the organic material, making it difficult to eliminate without removing the underlying food source. Chemical treatments can also affect beneficial organisms in the garden.

Removing the visible fruiting body and tolerating the occasional reappearance is usually the simplest approach.

### 4. Expect Them to Return Occasionally

Removing a mushroom doesn't necessarily remove the underground fungal network.

If favorable moisture and food sources remain, new fruiting bodies may emerge later.

That's normal, and it doesn't mean you've done anything wrong.

## Do Stinkhorn Mushrooms Mean Your Garden Soil Is Healthy?

Their presence can tell you something about the conditions in your garden, but it's important not to overinterpret it.

Stinkhorns are decomposers, so they indicate that suitable organic material and environmental conditions are available for fungal growth.

As fungi break down organic matter, nutrients can gradually return to the soil ecosystem.

However, finding a stinkhorn doesn't automatically mean your soil is exceptionally fertile, perfectly balanced, or free from problems. Soil quality depends on many factors, including drainage, structure, nutrient availability, and pH.

Think of the fungus as one small participant in a much larger garden ecosystem.

## Frequently Asked Questions

### Will red stinkhorn mushrooms damage my lawn or flowers?

Generally, no. Stinkhorns are decomposers rather than typical plant pathogens. They usually grow on dead or decaying organic material and aren't considered a significant threat to healthy garden plants.

### Why do stinkhorns grow in mulch?

Organic mulch provides a food source for fungi. Moisture and suitable temperatures can encourage the fungus to produce its visible fruiting body.

### How long do stinkhorn mushrooms last?

The visible fruiting bodies often last only a short time, sometimes just a few days. Their lifespan varies with the species and weather conditions.

### Can I prevent stinkhorns from returning?

You may be able to reduce their appearance by managing excessive moisture and removing heavily decomposed material where appropriate. However, completely eliminating them can be difficult because the fungal network may remain in the soil or mulch.

### Should I remove every mushroom from my garden?

Not necessarily. Many fungi are beneficial decomposers. If an unidentified mushroom grows where children or pets might eat it, removing it is a sensible precaution. Otherwise, you can often leave it undisturbed.

## Final Thoughts: Strange, Smelly, but Usually Harmless

Discovering a bright red-orange mushroom that smells like something has gone terribly wrong can be an unpleasant surprise.

But if the fungus is a stinkhorn, there's often a perfectly natural explanation.

These unusual fungi help break down organic material, recycle nutrients, and spread their spores with the assistance of insects. Their strange appearance and unpleasant odor are simply part of their reproductive strategy.

If one appears in your backyard, there's usually no need to panic. Avoid eating it, keep curious children and pets away, and remove the visible growth if the smell bothers you.

And remember: a strange-looking fungus isn't automatically a sign of a garden problem.

Sometimes, it's simply nature getting on with its work.

### Have You Ever Found a Stinkhorn in Your Garden?

Did it surprise you with its unusual shape or unmistakable smell? Share your experience in the comments. If you can, include a photograph of the fungus and where it was growing. Your discovery might help another gardener solve the mystery in their own backyard!

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