The annual return of Toronto's vibrant sakura cherry blossoms has officially begun, with the first delicate white petals opening in High Park as of April 28, right on schedule.According to Toronto's go-to expert for cherry blossom updates, Steven Joniak — better known as Sakura Steve — this year's full bloom is expected to begin on May 1, followed by peak bloom (when 90 to 100 per cent of blossoms are open) from May 2 through May 9 in High Park.For over a decade, Sakura Steve has kept cherry blossom fans informed with updates on his site, Sakura in High Park. Since 2012, he's been Toronto's most trusted sakura tracker, even receiving special recognition from Matsunaga Takeshi, the Consul-General of Japan, for his dedication.As always, the weather will play a decisive role in just how long that peak will last, with the upcoming rain and thunderstorms potentially shortening that window. Visitors heading to the park right now will spot only a f...