3 gardens in Maine checked against official websites: 2 botanical gardens, 2 arboretums. Most are listed in or near Boothbay, Portland, Augusta. 2 list free general entry and 1 charge admission; the rest are unrecorded or vary.
Admission and hours checked September 28, 2026. Prices may change.
Botanical garden of more than 300 acres in Boothbay with a butterfly house, children's garden and rhododendron and perennial gardens. Adults pay $28; the Gardens close at 5 p.m.
Labeled trees and shrubs in Payson Park, Portland, kept by the Longfellow Garden Club with the city. The site says it is free and open daily.
A 224-acre arboretum in Augusta with cultivated gardens, orchards and about six miles of trails. Entry is free and the grounds are open daily from sunrise to sunset.
These are gardens we could check against their own official websites, not every garden in the area. “Free” refers to general garden entry, not parking, tours or special events. We do not show live opening status.
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