Do Puffballs Grow on Trees?

Puffballs never grow on logs or trees, only on the ground. So if it's growing on wood, it's not a puffball. Good times to go looking for puffballs is in the late summer or early fall. Depending on where you live, they should be out from August until October.

Are there any poisonous puffballs?

On the other hand, there are no poisonous puffballs, and most forms are edible when young. Though as with everything, some individuals are allergic to them.

Do puffballs grow on birch trees?

There are three growing on an old birch log. These mushrooms have no gills (see pictures) and look like a giant puffball that is just starting out. They are growing larger pretty fast.