This past fall, I planted some small pieris japonica shrubs to provide nectar for mason bees (Osmia lignaria) in my garden during the early spring but they're doing very badly. Apparently I planted them too close to a cedar tree. Cedar needles fell on the back half of both pieris, making that portion of the plants turn completely brown and dry. I transplanted them a few days ago to a cedar-free location, added chicken manure to the soil around them, then mulched with rotting leaves. Does anyone know how hardy the pieris are? Will they survive that neglect/abuse? Will they be able to flower and provide nectar for the bees?