Hello, new poster here. Last August I bought a small eringuium zabelli (blue sea holly) and am after some help with it. I did research on it and know it requires sunlight, good drainage etc. However after looking in a bad way during winter, it sprung into life in spring with some growth. However it now appears to have gone the other way again.. the leaves are turning yellow again and curling up (I have cut the yellowing leaves off) . I spoke to where I bought it from and they told me nothing in the pictures gives them any cause for concern and that it looks fine, although they said ideally it shouldn't be in a pot. What do you think?? Thanks for any advice.