We are getting a number of reports about the emergence of the 'apple green' foliage. I am not sure if you left this plant outside during the winter but, from how you describe the growth, I dont think this is atypical of the habit. You should see within the next two weeks the 'rosebud' affect develop from the polar cap and then break out. Our small plants we are exhibiting at the Chelsea Flower Show next week are in fullnew leaf and look great. You should get 20-40 cm of new growth this year, probably in two flushes. Keep in touch