The Discovery

A South Carolina homeowner found a 3-inch by 1-inch green, jelly-like glob stuck to St. Augustine grass blades near a swampy forest. It looked like a child's toy but appeared organic.

Expert Assessment

Unprecedented in the expert's experience. Possibilities:

• Slime mold (myxomycete): Common on damp grass/mulch. Usually yellow/orange ("dog vomit" slime mold), but green species exist.
• Algal colony: Nostoc or similar cyanobacteria form gelatinous green blobs in wet conditions.
• Fungal fruiting body: Unusual morphology.
• Debris: Discarded toy, balloon, or organic matter.

Recommended Action

1. Lift carefully onto cardboard (wear gloves).
2. Take to local nursery or county extension office for ID.
3. Photograph in situ and close-up for remote diagnosis.
4. Monitor for more appearances—could indicate persistent moisture issue.

Context: Swampy Forest Edge

Constant moisture, high humidity, and organic debris create ideal conditions for slime molds, algae, and fungi. Improve air circulation, reduce irrigation, and increase sunlight if possible.

If It's Slime Mold

Harmless to grass. Disappears when dry. Can be brushed off. No treatment needed.

If It's Nostoc (Cyanobacteria)

Indicates overwatering/poor drainage. Fix cultural conditions; it will vanish.

Bottom Line

Don't panic. Document, identify, and address the underlying moisture issue. The "glob" is a symptom, not a disease.