Anybody know if the dried up catkins and other misc. gunk is beneficial to any pollinators or even to the soil? If it's of no benefit, then it will be gone. Or some of it will be. I've got oaks as do my neighbors.

Here's what I'm talking about:



At least I've got it off my roof and out of my gutters (for now).

Neighbor's roof (if you can tell):



Thanks.