“When Yost started Tilly Design in 2019, she wanted to make high-end landscape design more affordable. Tilly Design is a virtual service that offers homeowners individualized plans and consultations, maintenance advice and more working with some 50 designers. The 2005 graduate of Cornell University's Landscape Architecture school, Yost is also the founder and principal of a Pearl River, NY-based landscape architecture and building construction companies.”

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