Foam Dripping from Cut Vine: Sap Flow from Root Reserves

Orange and Yellow Foam from Cut Vine Stumps

A large cut vine in woods drips orange and yellow/white foam for two weeks. This is sap exudation from the still-living root system pushing stored carbohydrates and water up to the cut surfaces.

What to Expect

• Flow will gradually cease as root reserves deplete.
• Vine will likely resprout from base repeatedly over years.
• Persistent cutting or herbicide treatment on regrowth is needed for eradication.

The foam is not a disease or pest—just the plant’s vigorous survival response.