During the Lush Blooms event, Wicker Baskets can be found which contain large amounts of nature items, including Lemons, Apricots, Olives, Mushrooms, Prickly Pears, and Great Mullein. You can find spawn locations on the following maps, based on reports by the community.
Dam Battegrounds Spawn Locations
Blue Gate Spawn Locations
Buried City Spawn Locations
Spaceport Spawn Locations
Stella Montis Spawn Locations
