https://wccftech.com/animal-crossing-new-horizons-update-1-2-0/

Nintendo has released Animal Crossing New Horizons update 1.2.0 for the Nintendo Switch, which adds two new merchants for you to visit alongside new seasonal events and the all-new art gallery.

One of the new seasonal events in the game is the Nature Day event which runs from April 23 through May 4.  During the event, players can flourish the island with foliage and fulfill special limited-time Nature Day activities to earn extra Nook Miles, like planting shrub starts, water plants, and more.