For this year, 2015.. Tentatively when will the tulips bloom in the Daguan park in Kunming?

I might be wrong on this one, but I'm gonna take a wild guess at spring

Not sure about Daquan Park but Green Lake Park was awash with tulips during Spring Festival before they allowed all the commercial booths, Spring comes early to the Spring City.

Black Dragon Park, 黑龙潭,has a Spring Festival display of penzai, 盆栽 (original Chinese forerunner of bonsai). Bus 9 and 79 stop at the front gate.