I'm in need of suggestions for a flowering evergreen that would thrive with little maintenance in a setting which is already covered by a 6" layer of oyster shells. So yeah, I've somewhat painted myself into a corner.
Underneath is a solid soil base that drains fairly well since it's on a slight slope. The area gets full sun year-round.
Any suggestions are appreciated.
Also, should I perform a soil test before planting? The shells have been there for probably 5 years.