All Day

Indoor Gardening Workshop

Presque Isle

Indoor gardening workshop, sponsored by Central Aroostook Soil and Water Conservation District, 12-3 p.m. at UMPI's Zillman Family Greenhouse. $25 registration fee; 760-4602 or centralaroostookswcd@gmail.com

What’s Unique About Caribou

Caribou

Find out some of the items that make Caribou unique at the Caribou Historical Society and Museum, 1033 Presque Isle Rd. Open 12-4 p.m.

Betsy Sweet Town Hall

Caribou

Town hall meeting with U.S. Senate candidate Betsy Sweet, 10:30 a.m.-12:30 p.m., Caribou Public Library.