Our Team

Cashel O’Sullivan

Certified as a horticulturist by the Brooklyn Botanic Garden, Cashel has over a decade of professional horticulture experience which ranges from rooftop gardens in NYC to gardens in Cambridge, Portland, and Boston. He uses a native inspired plant palette in communication with its surroundings to create gardens that tuck homes into landscapes.

Daria O’Sullivan

With a Bachelor’s degree in biology from Vassar College, Daria is fascinated by the processes underlying the natural world’s complex beauty. When she is not working as a psychiatry resident at MMC, she contributes to Opus a keen understanding of the science which underscores a gardens ability to function and thrive.