Hi Tate1963, glad you found us!
I'm not sure where in S NJ you are. When we lived in OC, NJ, there were a few nursaries that carried semps on the Black Horse Pk. Tom's was one. Can't remember the others.
Mail order from members that sell is always a great choice! As well as preferred vendors previously mentioned.
Your sandy, well drained soil should be perfect for semps!
Now I miss my OC beach and boardwalk!
