Yuko Watanabe had to learn a lot of plant names. She lists them with as much confidence as she does her extensive soup menu. Calathea, pothos, Swedish ivy, song of India.

For over a decade, her Yuko Kitchen has fed Los Angeles Japanese comfort food — something like your friend's mom might cook for you after the school, Watanabe says. But this pandemic spring, when streets emptied and her phones grew quiet, a mini-jungle took over the chairs and tables, her cafes pivoting to sell nourishment both for the body and the soul.

On the rare occasion she leaves her room, Diane Evans uses a walker to gingerly navigate San Francisco's Tenderloin neighborhood. Most days, the 74-year-old wears a multicolored head wrap, known as a gele, an extra-large T-shirt and plaid pajama pants.

Deprived of classes and shared meals at the senior center she calls home, she is alone most of the time, beset by numerous health problems and severe clinical depression.