October is known for the second harvest, which is when the beer drinking celebrations of Oktoberfest begin. Take note of fall colors, which tree leaves turn which color? Don't forget colors in herbalism are important.

Materia medica includes a several seasonal plants. Sassafras is a native but weedy tree that was once used as the primary flavor for root beer. Rosemary will get your circulation going, but check out the warnings. Red clover is a slightly warming nutritive. Hawthorn is a common tree in most parts of the world, what common fruit is it related to?

This month's special topic explores color and a bit of phytochemistry.

Fill out your project worksheets and share questions and/or ideas in the Comments.

And then take some time to learn about herbs to support the circulatory system so you can warm up for cooler days

We're getting close to the end!