I have now bought two Daphne Odora plants. Both are looking very sick. I bought one over a year ago, and the other at Xmas...They have lost any leaves they did have and only have greeny brown shoots that never grow. I have put one in a pot, and the other is now in the garden in the hope it improves. I feel really dispoointed that both plants have been such a failure - they are expensive to buy and I have following all growing instructions. Has this happened to anyone else....any tips????