I have a shallow ditch which runs between my driveway / horse field fence. Last fall I decided to put a perennial border along the full length (approx 70'). I planted Spirea at the posts (they seem dead), Mock orange at the gates (no life showing) and Siberian Iris the full length (no signs of life yet). I mulched everything with 6" of bark mulch. This Spring it has been a very wet area. Does anyone have ideas of plants I can grow? It's in full sun and should not be wet year-round - it's very shallow but not great soil!
Thanks for any help!