Seagull's Heaven does poorly for me. I have had it for 5 years now and it is still 2 fans and it is struggling. Scapes were very stunted this year with very little bud count even though we have had plenty of rain and I have fertilized. The first 2 years it bloomed was much better than the last 3 years. I didn't really notice any spring sickness on this plant but I really think it needs a warmer climate to perform better.