Firefly Grass Patch - Large

 is a rare base item.

Obtained from

 * Arborist Louis
 * The Misgiving Tree

Feats

 * Best Fronds Forever: Collect 10 Base Items from the 2019 Springtime event (10 Points)

Trivia

 * The item is only available during the Springtime event.
 * The animated flying firelyies are not visible on the item's preview.