Fairmount Park Horticulture Center ("The Hort")

The site is that of Horticultural Hall, designed by Hermann J. Schwarzmann for the 1876 Centennial Exposition. According to the historian John Maass, quoted on the PhillyHistory blog, this Moorish-style iron-and-glass conservatory, 383 feet long and 193 wide, was the largest built up to that time, bigger than the hothouses of the botanical gardens of London and Paris. Construction began in December 1874 and was completed on 1 April 1876, at a cost of $367,073 borne by the city. Maintenance was neglected: in 1911 the park commission's engineers found the building in hazardous disrepair, and Hurricane Hazel in 1954 broke some of its panes. It was demolished soon afterwards, in 1954 or 1955.

The present Horticulture Center was built on the same spot, for the Bicentennial according to Wikipedia. Wikipedia (English and French) and a 2010 article date it to 1976; the venue's official website says 1979. The 2010 article says that the cost of maintaining an unusual structure had let it decay; after a rehabilitation it reopened on 26 October 2010 as an event venue, at a launch hosted by the City, Parks & Recreation, the Fairmount Park Conservancy and Stephen Starr Events.

Parks & Recreation and the Pennsylvania Horticultural Society set up the Community Propagation Program there in 2016, renting greenhouse tables to gardeners; a 2022 page says it is suspended pending roof repairs. In February 2019 the greenhouse was turned into a pop-up summer oasis, Getaway at the Greenhouse, an idea revived in 2023 among other years.

Wikipedia gives the greenhouse 31,000 square feet, about 2,900 square metres, and also mentions an exhibition hall. The official website presents it as a lush greenhouse bathed in natural light, unlike a conventional ballroom; a 2023 article calls it a glass-enclosed greenhouse with room to roam inside, and Eater noted in 2019 that it is kept at a mild temperature all year for its greenery. It sits within a setting of gardens and fountains.

Farm Philly's community greenhouse at the Horticulture Center is suspended because its roof needs major repairs and is judged unsafe to occupy (Farm Philly page, 2022).

Visit Philadelphia (June 2026) says tropical and succulent plants thrive there all year; Wikipedia also mentions tropical plants.

While it was running, the Community Propagation Program housed its members' seedlings, which came to over 100,000 plants a year, according to Farm Philly: urban farmers, community and backyard gardeners, herbalists and seed keepers.

Around the greenhouse lie the 27-acre Centennial Arboretum, seven demonstration gardens, a cherry allée and the Pavilion in the Trees, a treehouse-style art space (Visit Philadelphia). The Shofuso Japanese house and garden occupies the same site; admission is charged there, unlike the centre's grounds, which are free according to Wikipedia.

The centre is at 100 N. Horticultural Drive, at the south-east corner of Belmont and Montgomery Drives in West Fairmount Park. The grounds are open every day except holidays, free of charge, according to Wikipedia. The greenhouse interior is more tightly managed: the official website announces a few free open days for October, and the venue is also hired for receptions, so it is wise to check the calendar before travelling. Allow about an hour for the greenhouse and its surroundings.

In spring the Centennial Arboretum's cherry trees have their own festival. The Shofuso house, which charges admission, is on site, and the Please Touch Museum occupies the Memorial Hall built for the 1876 Exposition, in the same park.