Being that it is a huge tourism driver in Japan I would assume if it was being done they would go both routes to get 2 separate bloomings. An alternate theory

Being that it is a huge tourism driver in Japan I would assume if it was being done they would go both routes to get 2 separate bloomings. An alternate theory would be to choose tress that all bloom same time and this could if early bloomers have less variability lead to average early blooming. Then would that make up 1% of the increase in data or 10 or 90