Here’s where to study seeds, soils and more

FEB. 9 Night Garden at Descanso Gardens: Descanso Gardens hosts its first Night Garden event starting with its “Campfire Evening” featuring a look at nocturnal insects, crafting, puppet shows and how to identify wintertime constellations and other objects in the night sky. For all ages. 5:30 p.m. to 8 p.m. Food by Patina will be available for purchase starting at 5:30 p.m. 1418 Descanso Drive, La Cañada Flintridge. Advance tickets required, $5 for members and $15 for non-members. descansogardens.org

FEB. 12 Saving the oaks: Biologist Rosi Dagit discusses “Oak Survival Through Drought, Fire and Bad Beetles” and ways everyone can help oaks thrive in their native region during a meeting of the Los Angeles and Santa Monica Mountains chapter of the California Native Plant Society, First Methodist Church, 1008 11th St., Santa Monica. 7:30 p.m. to 9 p.m. Free. lasmmcnps.org

FEB. 15 Learning from nature: The Sherman Library & Gardens located at 2647 E. Coast Highway in Corona Del Mar starts its new Lunch & Lecture Series with speaker Ron Vanderhoff, the general manager of Roger’s Gardens nursery. Vanderhoff outlines how to be a better gardener by “observing how nature does it,” with illustrations of plant communities and habitats throughout Southern California and discussion about slope, soil composition, nutrients and insects. 11:30 a.m. to 1 p.m. Lecture only is $5, free for members. Chef Pascal Olhats provides lunch at the gardens’ Cafe Jardin. Admission with lunch is $35 and $25 for members. Reservations required for the lecture and lunch options. slgardens.org

FEB. 16 Ask a landscape designer: The Greater Los Angeles and San Diego chapters of the Assn. of Professional Landscape Designers are offering 30-minute advice sessions for $30 during Modernism Week, at the CAMP Theater, 230 Museum Way in Palm Springs. Advance registration encouraged. tickets.modernismweek .com

FEB. 23 Celebrating cherimoyas: California is the only state to commercially grow cherimoya fruit, and Dario Grossberger, one of the largest producers, discusses the various aspects of its production, including varieties, pollination and marketing, at a meeting of the California Rare Fruit Growers of Los Angeles, 16633 Magnolia Blvd., Encino. 10 a.m. Admission free. crfg-la.org

If there’s a plant-related class, garden tour or other event you’d like us to mention, email me at jeanette.marantos@latimes.com — with a month’s notice, please! — and we may include it at a later date.