Leaves that don’t leave

Rake Up Boise is this Saturday. Thank you to the hundreds of volunteers who will be out raking up more than one thousand yards for people who are older or who have disabilities. Team leaders picked up cases of leaf bags last Saturday.

Most leaves will have fallen by this Saturday, but some leaves are stubborn.

Those leaves are firmly attached. The condition is called marcescence, and it’s a bit of a mystery. Some trees are more prone to hanging on to dead leaves than others, such as oak and beech trees, and also shrubby trees. The reasons include timing of freezing temperatures, rain, snow, and probably more things science doesn’t know about yet.

Some trees will hang on until new leaves emerge in the spring. Nothing you can do to hurry it along. Trust Mother Nature.