It's dead, I think. I planted it in May in dappled sun spot. I dug into the soil around it and found it was very dry. I have been watering, or maybe not enough compost/mulch, and too much native soil? I dug it out and put in a big pot with good soil, keeping it moist. After 2 weeks it still looks dead. Any advice/fertilizer maybe? This plant cost me $20, so I'll try anything to save it.