Q&A: Growth on Mulch

Find out whether fungus growing on mulch can harm surrounding plants.

Related To:

Q: Growing in the mulch along the edge of my flower bed is an ugly fungus — it's brown and curly, like lasagne pasta. Is this harmful?

A: Fungus grows on mulch occasionally as part of the natural decay process. It tends to appear more often in wet weather and will disappear when conditions no longer favor it or when the mulch breaks down sufficiently. It will not harm your plants. Neither will white mold, which also sometimes forms on the top of mulch.

— National Gardening Association

Keep Reading

Next Up

Mulching Options

Whether you choose inorganic or organic, mulch helps your garden grow—and look great.

How to Mulch

Think you know all about this basic garden technique? Learn tips to get the most out of mulching.

10 Mulch Dos and Don’ts

Protect your plants and avoid top mulching mistakes by following these dos and don'ts.

Use Fall Leaves for Winter Mulch

Do yourself, your garden and your community a favor this fall. Reuse those leaves!

Mulching Trees and Shrubs

Mulch helps minimize weeds, conserve moisture, moderate soil temperature, and make your yard look good. 

Fungus on Mulch: Stinkhorn

Mulch can be the breeding ground for unsightly but harmless growths.

Q&A: Snags, Money Tree and More

Master gardener Paul James answers gardening questions about mums, horsetail rush, snags, money tree and more.

Don’t Waste Those Fall Leaves: Mulch Them!

Tips for turning those fall leaves into garden treasure.

Growing From Seed

Tips to help you get your seeds up and growing.

Q&A: Overwintering Bananas

Tips for growing banana plants in cold weather.

1,000+ Photos

Browse beautiful photos of our favorite outdoor spaces: decks, patios, porches and more.

On TV

Tiny House Hunters

6:30am | 5:30c

House Hunters

8:30am | 7:30c

House Hunters

9:30am | 8:30c

House Hunters

10am | 9c

House Hunters

10:30am | 9:30c

House Hunters

11am | 10c

House Hunters

11:30am | 10:30c

Fixer Upper

12pm | 11c

Fixer Upper

1pm | 12c

Fixer Upper

2pm | 1c

Fixer Upper

3pm | 2c

Fixer Upper

4pm | 3c

Fixer Upper

5pm | 4c

Fixer Upper

6pm | 5c

Fixer Upper

7pm | 6c
On Tonight
On Tonight

Fixer Upper

8pm | 7c

Good Bones

9pm | 8c

House Hunters

10:30pm | 9:30c

House Hunters

11pm | 10c

House Hunters

11:30pm | 10:30c

Good Bones

12am | 11c

House Hunters

1:30am | 12:30c

House Hunters

2:30am | 1:30c

Fixer Upper

3am | 2c

Follow Us Everywhere

Join the party! Don't miss HGTV in your favorite social media feeds.