Puff Balls - Knowledgebase Question

Foresthill, CA
Question by meka
February 23, 2000
My vegetable garden gets a round fungus that is gray in color. The size ranges from golf ball to baseball. When it is broken open, it is black and powder like.
I live in a low mountain community. We have pine and oak trees. I think it may be oak fungus. Please help me identify and is it toxic?

Answer from NGA
February 23, 2000


I suspect what you've found are common puff-balls (Lycoperdon pyriforme). These are fungi and, in youth, are edible. As they age the spores inside become powdery. Puff-balls are often found in clusters on stumps and sections of wood, and are very common.

Instead of tilling the fungi into the soil, collect and remove them from the garden prior to preparing the soil for planting. While they're harmless in the garden, spreading the spores will only encourage more puff-balls to grow.

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