Christiansen revealed he has a whole bed of those roses outside his kitchen window and joked he says good morning to her each day. He also described Stewart as a force of nature — likening her to wisteria after interviewing her for his book The Guide to Becoming Alive.
Stewart laughed at the comparison and reiterated she isn’t slowing down. In a recent PEOPLE Flashback she said she wants to keep learning, cherish beautiful gardens, support family and friends, and — one day — enjoy a big yacht.