Need suggestions for a Zone 8 ground cover
I am looking at three ground covers and am hoping to find one that SPREADS QUICKLY and forms a LOW-GROWING MAT which will choke out weeds. My list thus far includes
1. Pratia pedunculata ( County Park or Blue Star creeper varieties)
2. Herniaria glabra (Green Carpet Rupturewort)
3. Mazus reptans (alba or purple)
I live in zone 8 on the beach and have VERY SANDY soil which is very well-drained and have two different areas where I would like to grow a ground cover.
The first is a fringe area of the yard which is shady, virtually all sand and is NOT covered by our underground sprinkler. Even something considered invasive would not be a problem here.
The second area is where I would like a ground cover to replace landscaping that is currently mulched with pine straw. It is sun/partial sun and is watered with the automatic sprinkler. The soil is sandy but has more of a soil base than the fringe area.
Any suggestions would be very much appreciated, particularly comments on the varieties I have been looking at. Also, if you know where I can purchase these plants online at this time of year I would welcome that information.Thank you