WARNING: This is not a how to. This is a what I did.
I have never before divided old plants. My timidness on the practice explains why my herb box has gone five years without splitting up the overgrown chives and thyme.
For real advice on dividing plants, start with Fine Gardening’s 10 Tips for Dividing Perennial Plants. If you’re looking to create more plants from cuttings, see Gayla Trail’s guest post on Apartment Therapy.
I read a few google results on dividing thyme and chives and went for it. I also divided my old Golden sage but, it turns out, that was probably a waste of time. I didn’t even take pictures since it just felt wrong how I cut it in half. The leaves were tiny and bland last summer, about a year after I should have replaced it. I have a robust Berggarten sage starting its second season and can live without the spent Golden.
Really, I should pull out the divided Golden sage to allow more room for the two flagrant cat-lady additions: pineapple sage and lemon thyme! (Though, my impulse-buy pineapple sage might get too large for my herb box, it would be lovely to see it bloom just outside our screen door.)
I created the new (second) herb box for a friend, she’ll receive it in a few weeks once I’m sure the inhabitants recovered from surgery.
If these herbs survive my dividing, I will have conquered one more proper maintenance item.