For a very brief window of time this spring, Washington, DC will come alive with cherry blossoms, so flower lovers who can’t make it to Japan this year had better put a countdown on their phone.

According to a forecast from the National Park Service, the National Mall and Memorial Parks’ thousands of Yoshino cherry trees will bloom between April 3 and 6. Right now, the trees are in the first phase of their blossom, known as the “green bud” state, with peak bloom in DC generally occurring between the last week of March and the first week of April. “Peak bloom” is defined as the day when 70 percent of the blossoms are open.

Yoshino trees usually bloom for several days, though the length of the bloom depends upon the weather conditions. Cool, calm weather is more conducive to a lengthy bloom, while rain and wind don’t do the cherry blossoms any favors and late frost is simply disastrous.

The National Parks Service forecasted this year’s bloom with a Game of Thrones-themed banner, which reads “Spring is Coming.” It even provided a reference chart of every cherry blossom bloom date since 2004.

H/T: AFAR