17 things gardeners and plant lovers can do in L.A. to welcome fall — and Halloween

Can you feel it? rogersgardens.org Sept. 18-19 Southern California Begonia Society Show & Sale at Sherman Library & Gardens, 2647 E. Coast Highway in Corona del Mar 10:30 a.m. to 4 p.m. both days. thesherman.org Sept. 19 How to grow a winter vegetable garden in your backyard or containers is a class presented by master gardener George Pessin, curator of Greystone Mansion, at the Greystone Demonstration Garden, 905 Loma Vista Drive in Beverly Hills from 10 to 11:30 a.m. cpp.edu/~pumpkinfestival/ Oct. 3 Integrated Pest Management: How to Deal With Insects, Pests and Disease in a Backyard Garden is a class offered by master gardener George Pessin, curator of the Greystone Demonstration Garden at Greystone Mansion, 905 Loma Vista Drive in Beverly Hills, from 10 to 11:30 a.m. Tickets are $15. thesherman.org Oct. 24 Start an Herb Garden or Expand an Existing One is a class offered by master gardener George Pessin, curator of the Greystone Demonstration Garden at Greystone Mansion, 905 Loma Vista Drive in Beverly Hills, from 10 to 11:30 a.m. Bring your own 6-inch to 8-inch pot and take home an herb plant; the instructor will provide seedlings and potting soil.