Hi, I only know of only two Japanese maple super gardens in North America and Im planning to visit both. One is in Everett, WA called Amazing Maples (www.amazingmaples.com) and one is from a private collector, Bryan Tapia, from Puyallup, WA. These guys have more than 300 cultivars in their collection. I was wondering if you happen to know any other Japanese Maple super gardens in North America? Please reply to me, if you own one of these Japanese maple super gardens, I promise to pay you $20 just to let me see your collection. I was also wondering if you happen to know where is JD Vertrees' Japanese maple Garden in Oregon? Can you also tell me the Top 3 nurseries in North America has the most number of cultivars? Thanks.