George L. Luthy Memorial Botanical Garden, usually just Luthy Botanical Garden, is a botanical garden and conservatory located in Glen Oak Park, near the corner of Prospect Avenue and Gift Avenue in Peoria, Illinois, United States.
The garden was established in 1951. It is named after George Littlewood Luthy, who was president of Peoria's Commercial National Bank (now part of PNC Bank) and a Trustee of the Peoria Park District, which owns the garden.
The garden is a member of the American Public Garden Association (APGA).
The garden now contains more than 300 genera, with an emphasis on roses, perennials, annuals, hosta, hemerocallis, and herbs.
Luthy Botanical Garden has 15 themed gardens. Specific gardens include an all-season garden, herb garden, perennial garden, rose garden, viburnum collection, wildlife garden, and woodland garden. Native prairie grass and wildflowers are also on display.
The conservatory is and features tropical plants, orchids, and seasonal displays.
It is open daily. Garden admission is free; a fee is charged for the conservatory.