Debra Prinzing, founder and creative director of Slow Flowers LLC, announced the speaker lineup for the 2027 Slow Flowers Summit, taking place live and in-person on the grounds of the famed cultural destination, Filoli Historic House and Garden, located in the San Francisco Bay Area . “We’re thrilled to again partner with the horticulture and floriculture teams at Filoli Historic House and Garden, the location of our unforgettable 2021 Slow Flowers Summit,” Prinzing said.