We have an invasive lawn weed called creeping charlie or ground ivy, this year in has completely taken over a part of our lawn. We are looking for the best way to get rid of it. without harming the adjacent gardens. The area in in full sun.
Harford County Maryland
Ground ivy is a member of the mint family and is not easy to control. If this weed or weeds have taken over 50% of your lawn, you may want to consider lawn renovation late summer to early fall. https://extension.umd.edu/hgic/topics/lawn-renovation-and-overseeding
Maintaining a healthy, dense lawn can help to reduce its spread. https://extension.umd.edu/hgic/topics/tips-lawn-weed-prevention-and-management
If it is in a landscape bed, pull it out.
The following is a link to controlling it in the lawn,