From your description—black, finger-like, hard structures emerging from mulch—it sounds like you may have found a type of fungus called dead man’s fingers.
Here’s what to know:
1. Appearance
- Black or dark brown, sometimes purplish.
- Finger-like or club-shaped, growing straight up from soil or mulch.
- Usually 2–5 inches tall, though sizes vary.
2. Habitat
- Common in damp, decaying wood, mulch, or rich organic soil.
- Often appear in spring or after heavy rain.
3. Safety
- Not typically dangerous to humans, but not edible.
- Can be unsettling in appearance, hence the creepy nickname.
4. Fun Fact
- Its scientific name is Xylaria polymorpha, and it helps decompose dead wood, which actually benefits your garden soil.
⚠️ Tip: Avoid touching or ingesting it. You can leave it as-is—it won’t harm plants. If it bothers you aesthetically, removing the affected mulch and replacing it with fresh mulch is enough.
If you want, I can show you a photo comparison to see if it matches what you found. This will confirm if it’s really dead man’s fingers. Do you want me to do that?
