Allan Gardens Conservatory is a landmark indoor botanical garden situated in downtown Toronto’s Allan Gardens park, occupying an entire city block. The conservatory complex consists of six climate‑controlled greenhouses totaling roughly 16 000 ft², showcasing distinct plant zones: Arid House (cacti and succulents), Tropical House, Palm House (historic dome built 1910), Orchid & Bromeliad House, and Temperate House with a seasonal flower show and koi pond.

Originating from land donated in 1858 by George William Allan to the Toronto Horticultural Society, the gardens opened in September 1860. The Palm House burned down in 1902 and was replaced by the current Edwardian-style glass-and-iron dome in 1910. Expansion in the 1920s, 1950s and early 2000s raised the number of display houses to six.

The City of Toronto’s Parks, Forestry & Recreation Division manages the site, while volunteer group Friends of Allan Gardens supports programming and restoration efforts. The Palm House reopened after heritage restoration in May 2025, adding universal-access washrooms and improved environmental controls.

Admission is always free. The conservatory is open daily 10 a.m. to 5 p.m. with last entry at around 4:45 p.m. It is an ideal year‑round destination: families, horticulture enthusiasts and visitors seeking a peaceful oasis will find seasonal flower shows (spring hydrangeas, fall chrysanthemums, winter display), interpretive signage and a serene environment away from city bustle.

Visitors should note that pets are not allowed inside the conservatory, although service animals are permitted; photography for personal use is allowed on paths only; drones and extended use events require permits. Parking is limited, and public transit or walking are advised for downtown access.