Bronx: Bird Walk. Look for species that live in the botanical garden year-round, and migrating birds. Saturdays at 11 a.m. through June 30. Admission is from $2 to $20. www.nybg.org. 11 a.m. New York Botanical Garden, 2900 Southern Boulevard. 718-817-8700.
New City: Blooms Through the Seasons, with Marlene Ostertag. Free. 1 p.m. New City Library, 220 N. Main St. 845-634-4997.
North Salem: Conversation with Local Gardeners. Free. 10 a.m. Ruth Keeler Library, 276 Titicus Road. 914-669-5161.
Bronx: The Orchid Show, thruough April 22. In the Enid A. Haupt Conservaotry, the nation’s largest exhibition of orchids. Also, for $30, Orchid Evenings, starting at 6:30 p.m. Saturdays during the show and April 20. Saturdays and Sundays from 11 a.m. to 3 p.m., there is an Orchid Show Q&A and on Saturdays from 1:30 to 4:30 p.m., orchid experts are available for consultation with garden admission, from $8 to $20. www.nybg.org. New York Botanical Garden, 2900 Southern Boulevard. 718-817-8700.
Mahopac: Great Gardening: Starting from Seed. Workshop led by Dianne Olsen, horticulture educator with Cornell-Putna. Registration requested. Free. 7 p.m. Mahopac Library, 668 Route 6. 845-628-2009, Ext 100.
Valhalla: Stormwater Management and Erosion Control Landscape Conference. Featuring presentations by Donald Ferlow, Gregory Liberman, William Young, and Donald Knezick. $95, $127 (with credit). 8:30 a.m.-3:30 p.m. Native Plant Center, Westchester Community College, 75 Grasslands Road. 914-606-7870.
New Rochelle: Garden Club Meeting. The Garden Club of New Rochelle will hold its monthly meeting followed by the program “Luck of the Irish Social.” Free. 2 p.m. Elks Lodge, 19 The Boulevard. 914-630-0111.
Briarcliff Manor: The Mysterious Orchid. Briarcliff Manor Garden Club. All are welcome to attend, and the Club welcomes new members. Free. 1 p.m. Briarcliff Recreation and Parks Dept./Chilmark Recreation Center, 48 Macy Road. 914-941-6560.
Bedford Hills: Leaf Mulching Landscaper Workshop. Local landscapers will demonstrate a small equipment change that can save you hours of labor on every property. 8:30 coffee and bagels; 9-11 a.m. workshop and demonstrations. Free. 8:30-11 a.m. Bedford Hills Community House, 74 Main St. 914-666-9057.
Chappaqua: Saw Mill River Audubon Third Saturday Bird Seed Sale. Seed is also available 10:30 a.m.-3:30 p.m. Monday, Wednesday and Friday. 9:30 a.m.-12:30 p.m. Pruyn Sanctuary, 275 Millwood Road. 914-666-6503.
Bedford: Bluebird Houses. Construct a bluebird house with our naturalist and learn all you’ll need to know about siting it. Register by March 15. $10. 11 a.m. Westmoreland Sanctuary, 260 Chestnut Ridge Road. 914-666-8448.
Stony Point: Growing Organic Vegetables and Fruit. Homeowners who want to grow organic vegetables and fruit can take one or all classes being offered on Mondays: March 19, April 23, May 21 and June 4. Registration is due by March 12 by email to firstname.lastname@example.org or by calling 845-429-7085, Ext. 117. The fee is $50 for all five classes. 7 p.m. Cornell Cooperative Extension of Rockland, 10 Patriot Hills Drive. 845-429-7085.
Yorktown Heights: Beekeeping 101. Doug DeCandia will get you started on the road to bees in your own backyard. This is a series of two classes, the second will be held May 19. Online registration required at www.hilltophanoverfarm.org. $20. 2-4 p.m. Hilltop Hanover Farm and Environmental Center, 1275 Hanover St. 914-962-2368.
Pleasantville: Garden writer and memoirist Colleen Plimpton will read from her award-winning book, “Mentors in the Garden of Life.” A general gardening Q&A follows the talk as time allows. Copies of book will be available for purchase. Free. 7:30 p.m. Mount Pleasant Library, 350 Bedford Road. 914-769-0548.
Pocantico Hills: Farm, Cook and Feast. For ages 16 and up. Get a taste of what it’s like to be a four-season farmer and prepare seasonal recipes using what you’ve just brought in from the farm. Tickets: www.stonebarnscenter.org or 914-366-6200, Ext. 151. Advanced registration. $50. 11 a.m.-1:30 p.m. Stone Barns Center for Food and Agriculture, 630 Bedford Road. 914-366-6200.
Garrison: Volunteer Landscape Day. Volunteers of all skill levels are welcomed. Rain or shine. Lunch served. To register: 845-424-3812 or email@example.com. Free. 9 a.m.-2 p.m. Manitoga/The Russel Wright Design Center, 584 Route 9D. 845-424-3812.
Pocantico Hills: Wild Food and Ecology Tour with “Wildman” Steve Brill. Dress for the weather and bring drinking water, plastic bags for veggies and herbs and paper bags for mushrooms; digging tool is optional. Tickets: www.stonebarnscenter.org or 914-366-6200, Ext. 151. Advanced registration is strongly recommended. 25 adult, $20 ages 6-14. 1-3 p.m. Stone Barns Center for Food and Agriculture, 630 Bedford Road. 914-366-6200.
Cos Cob: Hands-on Pruning Workshop, with Director of Horticulture Lisa Beebe; bring pruning tools and gloves. www.gecgreenwich.org. $15. 10:30 a.m. Garden Education Center of Greenwich, 130 Bible St. 203-869-9242.
Upper Nyack: 19th Annual Community Flower Show. Garden Club of Nyack’s show is titled “A Look Back in Time” to honor the club’s 100th anniversary. Show features exhibits in adult and children’s entries in both Flower Design and Horticulture. Entries should be brought to the school from 7:30 to 8:30 p.m. March 30 or 7:30 to 9 p.m. March 31. Prizes will be awarded at 2:45 p.m. including “People’s Choice” award selected by attendees and “Best of Show” award chosen by judges in both adult and child divisions. Watercolor raffle, benefit sale of spring plants, children’s activities, refreshments sold by the PTA. A schedule and list of rules is available at www.thenyackgardenclub.wordpress.com. Free. noon-3 p.m. Upper Nyack Elementary School, 336 N. Broadway. 845-358-3755.