Need alittle advice please

[minix]

Beside pulling these every week what could I put on to kill the weeds but wont harm the ground cover?

http://i145.photobucket.com/albums/r222/76imp/groundcover.jpg

[pitrack]

Are those phlox plants? Do they have a single root or a bunch of roots? If it's one single root try lifting up a section and sprinkling Preen under it or some other pre-emergent.