Periwinkle or Vinca major is a ground cover that has been popularly planted in many areas of California.  It has also become a major pest in many coastal and valley riparian areas where it has naturalized and now out competes many of the native flora.  It is also a major pest in my garden and I am looking for great alternatives to take its place.  The good news is that there is a web link on the California Gardening website to a group called PlantRight.  (http://plantright.org)  They have extensive lists of non-invasive ornamental plant alternatives for every climate zone in California. 

For example, some of the suggested plants that could be used to replace Vinca include:...