I have no experience with clerodendrons, but just wondering, was it planted bare-root or purchased established in a pot? If in a pot, was the pot well-watered before planting? Planting a plant from a pot without watering it first can result in wilting if the potting medium was very dry - just watering after planting often doesn't remedy that situation. I'm just wondering what the added potting soil was for, backfill of a bare-root plant?