Are oak catkins good for mulch in vegetable or flower beds? - Cooperative Extension: Garden and Yard - University of Maine Cooperative Extension

Question: Are oak catkins good for mulch in vegetable or flower beds? Answer: Katherine Garland, Horticulturist The catkins (a collection of inconspicuous flowers) produced by oaks are fine to use in your garden as a mulch. They’re quite fascinating to look at up close. Here’s a website with some fantastic pictures and helpful descriptions that explain the function and read more