[RSBob]

Good work John. Your work is certainly paying off.

A word of caution about periwinkle, in moderate climates it can become highly invasive. I lived in the Santa Cruz mountains in Calif where periwinkle spread like wildfire through several forests covering square miles.

When we bought our place in Wa my wife insisted all of the existing periwinkle in our landscape be killed, contained, like by concrete barriers going into the ground 6” or dug up. I took the easy route and used Roundup which I know is environmentally unfriendly as well as carcinogenic, but it easier than digging it up. In the mid west this might not be an issue. Here in Wa butterfly bushes are also invasive and can be found throughout the local mountains crowding out natives but in Ca where my mother lives, they aren’t a problem. All are region specific.