Free trees to the first 1,000 people! That isn’t a pitch you hear every day, but you’ll hear it at an event sponsored by Maui Nui Botanical Gardens, in conjunction with the Maui Association of Landscape Professionals, featuring plant sales, talks and demonstrations by experts within the burgeoning green movement on everything from fertilization to soil maintenance to pest control, plus mouth-watering grinds and the aforementioned gratis trunk-supported perennials. At 12:15pm, the Maui Invasive Species Committee will present its Malama i ka Aina award, reserved for a landscaper who promotes the use of native, non-invasive plants. Even if your thumb isn’t green—and maybe especially if it’s not—this one’s worth setting aside a Saturday for. www.nbg.org or 249-2798.