Re: Gyoiko and Ukon - Greenish white doubles, bronze leaves, mid-season Joseph Lin asked me if the Stanley Park tree we're calling 'Gyoiko' and the three or four nearby inside the golf course fence are the same - are they 'Gyoiko' as well or are they 'Ukon'. Mariko thought the golf course ones looked a bit different, but they're quite close together in a shadier setting, with two tree trunks entirely covered with ivy and the other showing some rootstock growth. I'm not going to answer the question, but I went back today to get some comparison photos. Rhody path 'Gyoiko' Golf course trees, might also be 'Gyoiko'. Second photo with rootstock growth also shows the green buds, similar to the tree above. Here's one more photo taken two days ago from a twig fallen off one of the golf course trees. And a close-up - is this showing vexillary filaments, which Mariko says are a distinguishing characteristic of 'Gyoiko' and not of 'Ukon'? I can't remember if we have a photo of the emerging leaves, so this is from the rhody path 'Gyoiko'