Bronx: Centennial Plant Sale. The sale will include over 100 varieties of annual, perennials, herbs, and roses inspired by their newly restored formal gardens. 10 a.m.-3 p.m.; Sunday rain date. Bartow-Pell Mansion Museum, 895 Shore Rd., (718) 885-1461.
Ho-Ho-Kus, N.J.: Ho-Ho-Kus Garden Club Annual Plant Sale. The sale will feature home-grown perennials, specialty and native plants, annuals, garden-related treasures, herbs, houseplants and baked goods. There will also be a children’s activity table. All proceeds benefit the club’s horticultural scholarship. Rain date: May 18. 9 a.m.-1 p.m. Town Green, Warren Place, 201-652-0729.
Ramsey, N.J.: 11th Annual Heirloom Tomato and Veggie Plant Sale. 10 a.m.-4 p.m. Free. Ramsey Masonic Lodge, 24 N. Franklin Turnpike, (973) 970-3276.
Yorktown Heights: Weed Walk. Join seasoned herbalist Bonnie Rogers and learn to identify useful weeds and herbs that grow in the fields and woodlands around the farm and your home. 11 a.m. $5 – $20. Hilltop Hanover Farm, 1271 Hanover St., (914) 962-2368.
Yorktown Heights: Vegetable Kits for Every Gardener. Geared toward novice growers, these carefully crafted vegetable kits containing Hilltop Hanover seedlings and Hudson Valley Seed Library seeds plus a one-hour lecture on gardening techniques, will provide you with everything you’ll need to start growing on your own. Workshops : 10 to 11 a.m. and 1 to 2 p.m., or just pick-up between 10 a.m. and 4 p.m. Registration required; $45 per kit. 10 a.m. Hilltop Hanover Farm, 1271 Hanover St., 914-962-2368.
Yorktown Heights: Weed Walk at Hilltop Hanover Farm. Join seasoned herbalist Bonnie Rogers and learn to identify useful weeds and herbs that grow in the fields and woodlands around the farm and your home. These plants live all around us are plentiful and are there for the using. Registration is required; $20 per person, $5 for children ages 8-12. Call (914) 962-2368 or register online at www.HilltopHanoverFarm.org/Eventshttp://www.brownpapertickets.com/event/679595 11 a.m.-12:30 p.m. $20. Hilltop Hanover Farm, 1271 Hanover St.
Ossining: Walking Tour of Historic Sparta Neighborhood, Ossining. The tour is free, but participation is limited to 20 people. For a reservation, contact email@example.com. 1 p.m.-3 p.m. Jug Tavern, 74 Revolutionary Rd., 914-945-0674.
Chappaqua: 11th Castles of New Castle House Tour. All five homes are filled with the unusual, the charming, and the striking furnishings. Buffet luncheon at Crabtree’s Kittle House for $25. Information: www.newcastlehs.org or call Betsy Towl at 914-238-4666. 10 a.m.-3:30 p.m. $75 nonmembers. Horace Greeley House, 100 King St.
Stony Point: Organic Vegetable and Small Fruit Growing Classes. This five part series is for homeowners who are planning to start growing organic vegetables and fruit. Class dates are: 4/29, 5/6, 5/13, 5/20, and June TBD.7 p.m.-9 p.m. $50 for the full five session series. Cornell Cooperative Extension of Rockland , 10 Patriot Hills Ln., 845-429-7085, ext. 117.
Bronx: Breaking Ground: A Talk on Ellen Shipman. “The Dean of Women Landscape Architects” spent her youth on frontier outposts before her family moved East. After marrying Louis Shipman, she moved to the Cornish Art Colony and began creating Colonial Revival gardens. By 1920, Shipman established a thriving practice in NYC. Notable projects are Longue Vue House and Gardens in New Orleans, and the Sarah P. Duke Gardens in Durham. Includes a visit to NYBG’s Ladies’ Border, designed by Shipman in the 1930s. 10 a.m.-noon. $20. New York Botanical Garden, 2900 Southern Blvd., 800-322-6924.
New City: Soil Preparation. Come and learn how to prepare the soil and create a flourishing and productive garden in our new vegetable field. Farmer Shane Hardy (or Jose Romero Bosch) will walk you through preparing a bed with the right mixture of compost, existing soil and amendments. 10 a.m. $15. Cropsey Community Farm, 220 S. Little Tor Road. 845-634-3167.
Chappaqua: Open Days Program Garden Tour – Rocky Hills. Explore the garden at Rocky Hills in Mt. Kisco, open to the public for self-guided tours to benefit the Garden Conservancy. No reservations required; rain or shine. Highlights include tree peonies and extensive plantings of rhododendrons and azaleas, a carpet of forget-me-knots, a fern woodland, rock garden, and a natural brook bordered by primula. 2 p.m.-6 p.m. $5 per person; children 12 & under free. Rocky Hills, 95 Old Roaring Brook Rd., (888) 842-2442.
Yorktown Heights: Ecological Gardening. Come join Doug DeCandia, Food Growing Project Coordinator at the Food Bank for Westchester, for this workshop on how to set up an ecologically responsible backyard vegetable garden. Topics will include pest management, composting practices, harvesting and pruning techniques. Registration required; $20 per person, $5 for children ages 8-12. 10 a.m. Hilltop Hanover Farm, 1271 Hanover St., (914) 962-2368.
Stony Point: Free Demonstration Garden Tours at Cornell. Visitors can tour the beautiful gardens and learn which plants grow best in the Lower Hudson Valley. Gardens include: The Ralph Snodsmith Perennial Garden; Hillside and Shade Garden; Fern Garden; Herb Garden; Native Plants; and the Rain Garden. Rain or shine on the last Sunday of each month through October. Children welcome. 1 p.m.-2 p.m. Free. 10 Patriot Hills Lane, 845-429-7085.
Greenwich: Getting the Most out of your Vegetable Garden. Location: 668 Lake Ave. Join Alan Gorkin for a walk through the teaching vegetable garden at Lake Avenue Farm to see first hand how to get the maximum yield from your vegetable garden. He will focus on companion and succession planting, followed by questions and answers. Registration required. 10 a.m.-noon. $35. Plus Material Fee. Garden Education Center of Greenwich, 130 Bible Street, (203) 869-9242.
Yorktown Heights: Beekeeping for Beginners. Second in a 3-part series. Topics include bee communication and behavior, swarm management, bee-friendly plants. Registration required; $20 per person, $5 for children under the age of 12. Hilltop Hanover Farm, 1271 Hanover St., (914) 962-2368.
Nyack: Garden Club of Nyack Annual Plant Sale, featuring perennials, flowers, shrubs, natives, bulbs and seedlings, many dug from members own gardens. Homemade baked goods. www.thenyackgardenclub.wordpress.com. 10 a.m.-2 p.m. Free. Katzenstein home, 507 N. Broadway, (845) 353-0181.
Valhalla: Great Native Plants in Containers. Kim Eierman shares the best choices of native plants to use successfully in containers, how to plant them properly, and keep them healthy for many years to come. Native container gardening is the new frontier — beautiful and eco-beneficial. 10 p.m. Westchester Community College – Classroom Building, 75 Grasslands Rd.
Bronx: Breaking Ground: A Talk on Beatrix Farrand. The only female founding member of the American Society of Landscape Architects, Farrand was born in NYC. She received estate commissions and developed an elegant style with rich architectural detail. Farrand completed more than 110 gardens, including projects for the White House & The Morgan Library, but notable surviving works are Dumbarton Oaks in Washington, D.C.; the Abby Aldrich Rockefeller Garden in Maine; and the Peggy Rockefeller Rose Garden at NYBG. Includes a visit to the Rose Garden. 10 a.m.-12 p.m. $20. New York Botanical Garden, 2900 Southern Blvd., 800-322-6924.
Mount Vernon: A tree grows at St. Paul’s. Walking tour of the historic grounds of St. Paul’s, exploring the history and variety of trees at the site. 1 p.m. Free. St. Paul’s Church National Historic Site, 897 S. Columbus Ave., (914) 667-4116.
Greenwich: Grandiflora Garden Tour. For information or to purchase tickets, call 203-869-9242 or visit our website www.gecgreenwich.org 10 a.m.-4 p.m. Ticket prices are available on our website. Garden Education Center of Greenwich, 130 Bible Street, (203) 869-9242.
Bronx: Rose Garden Festival. Come June, the Peggy Rockefeller Rose Garden is a sea of warm color, flush with reds, whites, yellows, and pinks of more than 4,000 blooming plants. In celebration of the delicate beauty that defines this collection, as well as the peak of its seasonal color, stop by for two days of live music, plant care demonstrations and tours with expert rosarians, and light summer refreshments in the shade of the garden’s overlooks. 10 a.m. New York Botanical Garden, 2900 Southern Blvd.
Yorktown Heights: Preserving The Harvest: Jams & Jellies, with Chef Donna Simmons of Poundridge Organics. 2 p.m. $10 – $25. Hilltop Hanover Farm, 1271 Hanover St., (914) 962-2368.
Bronxville: Bronxville Beautification Council Garden Tour. This year, in celebration of Eastchester 350, the Garden Tour will include properties in Bronxville, Eastchester and Tuckahoe. Transportation between houses will be available courtesy of the Tuckahoe Trolley. Docents will be available at each of the designated gardens to answer questions and direct visitors to special points of interest. Wine and cheese party in one of the gardens at the end. Rain or shine. Tickets are $20, and available at a number of merchants in Bronxville, Tuckahoe and Eastchester. On the day of the tour, tickets and maps will be available at Bronxville Village Hall, beginning at 11:30 a.m. Noon to 4 p.m. For more information, contact Margaret Monahan-Bopp: 917-374-0686, firstname.lastname@example.org
Fairfield, Conn.: Lunch & Lecture: Historic Gardens. Noon to 2 p.m. Fairfield Museum Shop, 370 Beach Rd., (203) 259-1598.
Yorktown Heights: Why Weed? Fact-filled workshop with the ABCs of weed management. 2 p.m. $5 – $20. Hilltop Hanover Farm, 1271 Hanover St., (914) 962-2368.
Bronx: Breaking Ground: A Talk on Marian Coffin. As a landscape architect, Coffin’s clients included America’s most distinguished families, including the Fricks, Vanderbilts, and Huttons. An astute businesswoman, she insisted on the same fees as her male counterparts. She designed over 50 estate gardens in the Northeast and was recognized for her refined, elegant work, including the gardens of Winterthur. Includes a visit to NYBG’s Benenson Ornamental Conifers. 10 a.m.-noon. $20. New York Botanical Garden, 2900 Southern Blvd., 800-322-6924.
Bronx: Women and the City: From the Landscape Perspective. Award-winning author and landscape historian Thaisa Way leads a session with four experts in landscape design that examine the ways women have influenced how we look at the modern city. 10 a.m.-12:30 p.m. $20. New York Botanical Garden, 2900 Southern Blvd., 1-800-322-NYBG.
Yorktown Heights: Couples Cooking with Karen Muendell. .ring a bottle of wine, someone special, and savor the satisfaction of a homemade meal. Limited to 12 couples, and online registration is required, $95 per couple. 7 p.m. Hilltop Hanover Farm, 1271 Hanover St., (914) 962-2368.
Yorktown Heights: Kids Cooking. Children ages 8 to 12 will get to see where their food comes from, harvesting veggies right out of the field, and will learn from master chef Maria Reina how to cook healthy and delicious snacks. 1 p.m. $15. Hilltop Hanover Farm, 1271 Hanover St., (914) 962-2368.
Upper Nyack: Open Days Program Garden Tour – Rockland County. Explore two private gardens in Upper Grandview and Upper Nyack, open to the public for self-guided tours to benefit the Garden Conservancy. No reservations required; rain or shine. Begin at South Cottage – The Moorings or see website for additional location. 10 a.m.-4 p.m. $5 per garden; children 12 & under free. South Cottage – The Moorings, 507 N. Broadway, (888) 842-2442.