Upcoming Events Outside HPS/MAG....

Below is just a sampling of the many programs planned by other non-profit, horticulture-related organizations in our area. Please note that the items listed here may not be updated following posting. If you are interested in a particular event, please check the organization's website for the most current information. 

Click below to see events listed by month.  

January
February
March
April
May
June
July
August
September
October
November
December

January

January 8 - April 27. Exhibit: Art of Seed, Artworks Commissioned by Hudson Valley Seed Company. Art show. PHS McLean Library, Philadelphia, PA. phs.org.

January 10 - 12. Mid-Atlantic Nursery Trade Show (MANTS). Baltimore Convention Center, Baltimore, MD. mants.com.

January 11. Delaware Ag Week Urban Agriculture Session. Lecture & networking session. Delaware Center for Horticulture, Wilmington, DE. thedch.org.

January 11 - 12. New Directions in the American Landscape (NDAL). Symposium. Morris Arboretum, Philadelphia, PA. morrisarboretum.org.

January 13. Creating an Edible Birdhouse. Workshop. Delaware County Master Gardeners, Springfield, PA. [email protected].

January 16 - February 20. The Real Dirt: Soil and Plant Growth. Class series. Wagner Free Institute of Science, Philadelphia, PA. wagnerfreeinstitute.org.

January 17. Growing, Grooming, & Entering: A "How-To" for Growing and Entering a Prize-Winning Plant. Lecture. PHS at Valley Forge Flowers, Wayne, PA. phs.org.

January 18 - 19. New Directions in the American Landscape (NDAL). Symposium. Connecticut College Arboretum, New London, CT. conncoll.edu/the-arboretum/.

January 17 - 31. The Winter Garden: A Succession of Color and Fragrance with Charles Cresson. Class series. University of Delaware Botanic Gardens, Newark, DE. ag.udel.edu/udbg.

January 18. Walk with the Curator: Berries, Bark, and Buds. Garden tour. The Scott Arboretum of Swarthmore College, Swarthmore, PA. scottarboretum.org.

January 18. Wanderings at One: The Persian Garden: UNESCO World Heritage Site with Becky Robert. Lecture. The Scott Arboretum of Swarthmore College, Swarthmore, PA. scottarboretum.org.

January 20. Implementing the Design, with Nick McCullough. Lecture. APLD: Association of Professional Landscape Designers - dc-md-va, Silver Spring, MD. eventbrite.com.

January 20. ABCs and XYZs of Garden Soil.Class. Barnes Foundation. Merion, PA. barnesfoundation.org.

January 20. The Quintessential Shade Garden. Lecture. Mt Cuba Center, Hockessin, DE. mtcubacenter.org.

January 31. Behind the Scenes Tour at Longwood Gardens with Jim Sutton. Tour. Longwood Gardens, Kennett Square, PA. phs.org.

February

February 1 - April 27. Exhibit: Art of Seed, Artworks Commissioned by Hudson Valley Seed Company. Art show. PHS McLean Library, Philadelphia, PA. phs.org.

February 1 -  22. Winter Lecture Series: Every Week in February. Delaware Center for Horticulture, Wilmington, DE. thedch.org.

February 1. Wanderings at One: Landscapes of Portugal in Sintra, the Douro Valley, and Lisbon; A preview of the 2018 Scott Associates Trip with Claire Sawyers. Lecture. The Scott Arboretum of Swarthmore College, Swarthmore, PA. scottarboretum.org.

February 2. Today's Horticulture Symposium. Symposium with Online Webinar registration option. Longwood Gardens, Kennett Square, PA. longwoodgardens.org.

February 3. So, You Want to Keep Honeybees... Class. Barnes Foundation, Merion, PA. barnesfoundation.org

February 8. Wanderings at One: Landscapes and Gardens of Spain, Scotland, and England with Alexis Bacon. The Scott Arboretum of Swarthmore College, Swarthmore, PA. scottarboretum.org.

February 8. DCH's Winter Lecture Winter Lecture Series with Brie Arthur.  Delaware Center for Horticulture, Wilmington, DE.  thedch.org

February 10. Build a Mason Bee House. Workshop. Delaware County Master Gardeners, Springfield, PA. [email protected].

February 10. Grow Your Berry Best: Small Fruits for the Backyard. Barnes Foundation, Merion, PA. barnesfoundation.org.

February 10 - 17. Your Small-Space Garden. Class series. Barnes Foundation, Merion, PA. barnesfoundation.org.

February 17. Building Nature from Scratch. Lecture. Mt Cuba Center, Hockessin, DE. mtcubacenter.org.

February 21. Pruning for Homeowners. Workshop. Mt Cuba Center, Hockessin, DE. mtcubacenter.org.

February 23 - 25. Open Nursery and Garden Days with Garden Unplugged Chat Series. Mini-lectures, tours. Plant Delights Nursery & Juniper Level Botanic Garden, Raleigh, NC. plantdelights.com.  

February 24. Perennially Inspired! Seminar. Perennial Plant Association & Horticultural Society of Maryland, Baltimore, MD. mdhorticulture.org.

March

March - 1 - April 27. Exhibit: Art of Seed, Artworks Commissioned by Hudson Valley Seed Company. Art show. PHS McLean Library, Philadelphia, PA. phs.org.

March 1. Wanderings at One: From Madrid to the Mediterranean: The Search for Green in Urban Spain, with Josh Coceano. Lecture. Scott Arboretum of Swarthmore College, Swarthmore, PA. scottarboretum.org. 

March 2. Advanced Pruning Workshop with Adam Glas and Dwight Darkow. Class. Scott Arboretum of Swarthmore College, Swarthmore, PA. scottarboretum.org.

March 2 - 4. Open Nursery and Garden Days with Garden Unplugged Chat Series. Plant Delights Nursery & Juniper Level Botanic Garden, Raleigh, NC. plantdelights.com. 

March 7. CANCELLED. Free Public Information Session: Emerald Ash Borer. Swarthmore Borough Hall, Swarthmore, PA.  swarthmorehorticulturalsociety.org.

March 8. Wanderings at One: Japan: The Many Gardens and Styles of Kyoto, with Keigh Robertshaw. Scott Arboretum of Swarthmore College, Swarthmore, PA. scottarboretum.org.

March 9. Healing Herbal Tea, with Nicole Boice of OMA Herbal Teas. Workshop. Greensgrow West, Philadelphia, PA. greensgrow.org.

March 10. Bank to Bend: Featuring a Lecture by Peter Zale, Intrinsic Beauty: Snowdrops, Choice Bulbs, Their Stories and How they Enrich Gardens. Winterthur Museum, Garden & Library, Winterthur, DE. www.winterthur.org.

March 10. Pruning Workshop. Lecture, demonstration, workshop. Delaware Center for Horticulture. Wilmington, DE. thedch.org.

March 10. Build a Salad Box. Workshop. Delaware County Master Gardeners, Springfield, PA. [email protected].

March 10. Soap Making Two Ways, with Nicole Gerding from Thankful Sage Farm School. Workshop. Greensgrow Community Kitchen at St. Michael's Lutheran Church, Philadelphia, PA. greensgrow.org.

March 15. Stressed Out! Using Botanicals as Physiotherapy, with Anne Bower. Barnes Foundation, Merion, PA. barnesfoundation.org.

March 10. Seed Starting Workshop. Greensgrow Farms, Philadelphia, PA. greensgrow.org.

March 17. Cheese 101, with Alex Jones from Collective Creamery. Greensgrow Community Kitchen at St. Michael's Lutheran Church, Philadelphia, PA. greensgrow.org.

March 17. New & Noteworthy Natives for 2018. Lecture. Mt Cuba Center, Hockessin, DE. Mar 17. mtcubacenter.org.

March 21. Collections Breed Success at the National Arboretum, with Dr. Richard Olsen. Lecture. Morris Arboretum, Philadelphia, PA. morrisarboretum.org.

March 23. Vegetable Garden Planning. Workshop. Greensgrow West, Philadelphia, PA. greensgrow.org. 

March 23 and April 21. Medicine Making Series: Tinctures, Infused Oils, and Salves. Workshop. Greensgrow Community Kitchen at St. Michael's Lutheran Church, Philadelphia, PA. greensgrow.org. 

March 24. Insights and Inspirations: A Garden Symposium. Master Gardeners of Mercer County, Princeton, NJ. mgofmc.org.

March 24. Inaugural Delaware Region Symposium: Working Models in Sustainable Landscapes. Open to all land managers. The Delaware Center for Horticulture, Wilmington, DE. thedch.org.

March 27 - May 1. Splendor in the Grasses: A Natural History of the Plant Family Poaceae, with Professor Jordan Teisher. Lecture series. The Wagner Free Institute of Science, Philadelphia, PA. wagnerfreeinstitute.org.

March 28 - November 4. Opening Day: Chanticleer Garden, A Pleasure Garden. Chanticleer, Wayne, PA. chanticleer.org. 

March 28. Spring Garden Walk & Tea with Jenny Rose Carey. Tea & Tour. Meadowbrook Farm, Jenkintown, PA. phs.org.

March 28. What's New in the Garden? , with Stephanie Cohen. Lecture. Floral & Hardy, Skippack, PA. floralandhardyof skippack.com.

March 28. Small Spaces Series: Growing, Enjoying, and Preserving Herbs. Lecture. The Delaware Center for Horticulture, Wilmington, DE. thedch.org.

April

April 1 - January 5, 2020. Follies: Architectural Whimsy in the Garden. Garden Exhibition. Winterthur Museum, Garden & Library. Winterthur, DE. winterthur.org.

April 1 - 27. Exhibit: Art of Seed, Artworks Commissioned by Hudson Valley Seed Company. Art show. PHS McLean Library, Philadelphia, PA. phs.org.

April 4 - 8. International Orchid Show, sponsored by the Southeastern Pennsylvania Orchid Society. Philly Expo Center, Oaks, PA. [email protected].

April 5. Stewardship Series: Amphibians and Reptiles Awaken. Lecture. Brandywine River Museum of Art Lecture Room (riverside entrance), Chadds Ford, PA. brandywine.org. 

April 7. Copeland Native Plant Seminar. Ashland Nature Center, Hockessin, DE. delnature.org.

April 7. 2nd Annual Wilmington Tree Giveaway. Open to all residents of Wilmington (preregistration required). Tilton Park, Wilmington, DE. thedch.org.

April 8. Native Perennials with Bling, with Stephanie Cohen. Lecture. Jenkins Arboretum & Gardens, Devon, PA. jenkinsarboretum.org.

April 11. Free Public Information Session: Emerald Ash Borer. Swarthmore Borough Hall, Swarthmore, PA.  swarthmorehorticulturalsociety.org.

April 11. Guided Walk: Highlights of Spring Plant Sale, with Dr. John Frett. University of Delaware Botanic Garden, Newark, DE. canr.udel.edu/udbg.

April 12. Crum Woods Tour. Free guided tour. The Scott Arboretum of Swarthmore College, Swarthmore, PA. scottarboretum.org.

April 13-14 & 20-21. Spring Open House. Gardens, sale. Pennsbury Gardens, West Chester, PA. Ph. 610-793-1074.

April 14. Garden History in the Greater  Delaware Valley. Lecture. Delaware County Master Gardeners, Springfield, PA. [email protected].

April 14. Hellebore Extravaganza. Gardens, sale. Carolyn's Shade Gardens, Bryn Mawr, PA. carolynsshadegardens.com

April 14. Northview Gardens and Glorious Shade, with Jenny Rose Carey. Meeting, lecture, plant sale (guests welcome). Delaware Valley Hosta Society, Doubletree Hotel, King of Prussia, PA. 

April 14. Vegetable Garden Planning. Workshop. Greensgrow West, Philadelphia, PA. greensgrow.org.

April 14. Wildflower Walk at the Laurels Preserve. Nature hike. The Laurels Preserve / Brandywine Conservancy, Coatesville, PA. brandywine.org. 

April 15. Haverford Home and Garden Show. Speakers, vendors, food. Haverford Reserve, Haverford, PA. haverfordhomeandgardenshow.org.

April 18. Designing With Plants the Great Dixter Way, by Fergus Garrett. Lecture. Sheppard Pratt Conference Center, Towson, MD. 

April 20. Bare Roots + Bulbs. Workshop. Greensgrow West, Philadelphia, PA. greensgrow.org.

April 20-22. Free exhibition the Delaware Valley Chapter of Ohara Ikebana. Flower show. Scott Arboretum of Swarthmore College, Swarthmore, PA. www.scottarboretum.org.

April  21. Haverford Earth Day Celebration. Workshops, exhibits, tree planting. Haverford Community Recreation & Environmental Center (CREC). Haverford, PA. haverfordtownship.org.

April 21. Ohara School of Flower Arranging Workshop. Scott Arboretum of Swarthmore College, Swarthmore, PA. Phone: Phone 610-328-8025 to register.

April 21. Swarthmore Garden Club Herb Sale. Borough Hall, Swarthmore, PA.  mdhorticulture.org.

April 24. Early Spring Tour. Free guided tour. The Scott Arboretum of Swarthmore College, Swarthmore, PA. scottarboretum.org.

April 27 - 28. UDBG Annual Benefit Plant Sale. University of Delaware, Townsend Hall, Newark, DE. ag.udel.edu.

April 27 - 29. Open Nursery and Garden Days with Garden Unplugged Chat Series. Plant Delights Nursery & Juniper Level Botanic Garden, Raleigh, NC. plantdelights.com. 

April 28. University of Delaware College of Agriculture and Natural Resources Ag Day 2018. UD Townsend Hall, Newark, DE. canr.udel.edu/ag-day.

April 28. Greenbank Mill's 14th Annual Sheep Shearing Day & Herb Sale. Demonstrations and plant sale. Greenbank Mills & Phillips Farm. Wilmington, DE. greenbankmill.com.

April 28. The 38th Annual Rare Plant Auction with Celebrated Plant Expert Bill Thomas of Chanticleer. Fundraiser with live & silent auctions. Longwood Gardens, Kennett Square, PA. thedch.org.

April 30. Mid-Atlantic Peony Society Tour and Reception. Free and open to the public. Scott Arboretum of Swarthmore College, Swarthmore, PA. scottarboretum.org.

May

May 3 - 5. Native Plant Sale. Delaware Nature Society, Cloverdale Farm Preserve, Greenville, DE. delnature.org.

May 4 - 6. Open Nursery and Garden Days with Garden Unplugged Chat Series. Plant Delights Nursery & Juniper Level Botanic Garden, Raleigh, NC. plantdelights.com. 

May 5. The 71st Annual Wilmington Garden Day. Tour. Wilmington, DE. wilmingtongardenday.org.

May 5. Arboretum Plant Sale. Barnes Arboretum, Merion, PA. barnesfoundation.org.

May 5. Plants, Glorious Plants, with Stephanie Cohen. Lecture. Barnes Arboretum, Merion, PA. barnesfoundation.org.

May 9. Foliage First: Boom Without The Bloom, with Dan Benarcik. Lecture. University of Delaware Botanic Garden (UDBG), Townsend Hall, Newark, DE. udel.edu/udbg.

May 10. Herb Society of America Philadelphia Unit - 79th Annual Herb Sale.  Herbs and hard-to-find specialty plants; box lunches by pre-order. The Meadow at Historic Yellow Springs. Chester Springs, PA. hsaphiladelphia.org.

May 11. Maryland Urban & Community Forestry Summit. Symposium. Patuxent Research Refuge, National Wildlife Visitor Center, Laurel, MD. eventbrite.com.

May 11. National Public Gardens Day Tour. Free. The Scott Arboretum of Swarthmore College, Swarthmore, PA. scottarboretum.org.

May 12 - 13. Wildflower, Native Plant & Seed Sale. Organic vegetable starts, planting, and horticulture information. Brandywine Conservancy & Museum of Art, Chadds Ford, PA. brandywine.org.

May 12. Greater Philadelphia Dahlia Society Spring Tuber Sale. Member grown. Visitor's Center Entrance at Longwood Gardens, Kennett Square, PA. philadahlia.org.

May 12. Heavenly Hydrangeas. Lecture. Delaware County Master Gardeners, Springfield, PA. [email protected].

May 12. Pottstown EcoFest 2018. Smith Family Plaza Park, Pottstown, PA. pottstownecofest.com.

May 17. Unusual Annuals and Tender Perennials, with Harriet Cramer. Lecture. Barnes Arboretum, Merion, PA. barnesfoundation.org.

May 19. Scott Arboretum Selections: Spring Sale. Tropicals, unusual annuals and spring bloomers. The Scott Arboretum of Swarthmore College, Swarthmore, PA. scottarboretum.org.

May 19. Montgomery County Master Gardener Plant Sale. 4-H Center, Collegeville, PA. Ph. 610-489-4315.

May 19. Artfully Planted Containers, with Eva Monheim. Workshop. Barnes Arboretum, Merion, PA. barnesfoundation.org.

May 20. A Lilac Party. Wine tasting, music, and plant auctions. Willowwood Arboretum, Far Hills, NJ. willowwoodfoundation.com.

May 24. Rose Garden Tour. Free guided tour. The Scott Arboretum of Swarthmore College, Swarthmore, PA. scottarboretum.org.

May 31. Dean Bond Organic Rose Garden Tour. Free guided tour. The Scott Arboretum of Swarthmore College, Swarthmore, PA. scottarboretum.org.

May 31. Learning from Great Gardens: Ivy Mills. Tour, light refreshments. Delaware Center for Horticulture, Wilmington, DE. thedch.org.

June

June 2. Home Gardeners' School. Symposium. Delaware County Master Gardeners, Springfield, PA. Call [email protected] or visit psu.edu/home-gardeners-school.

June 2. Visit the New York Botanical Garden. Bus trip, departing from Plymouth Meeting, PA, open to the public. North American Rock Garden Society, Delaware Valley Chapter. dvcnargs.org.

June 3. Garden Passions; Sweeping Vistas and and Intimate Spaces in Baltimore County. 27th Annual Garden Tour. Maryland Horticultural Society, Baltimore, MD. mdhorticulture.org.

June 6 - 9. Bowman's Hill Wildflower Preserve Native Plants in the Landscape Conference. Field trips, workshops, lectures, native plants, books, and gifts. Millersville University, Millersville, PA. millersvillenativeplants.org.

June 9. Bluebirds in Your Garden. Lecture. Delaware County Master Gardeners, Springfield, PA. [email protected].

June 13. Small Spaces Series: Pests, Weeds, and Water. Lecture. The Delaware Center for Horticulture, Wilmington, DE. thedch.org.

June 14. Learning from Great Gardens: Fairville. Tour, light refreshments. The Delaware Center for Horticulture, Wilmington, DE. thedch.org.

June 16. Flower Pressing Workshop. Greensgrow Farms, Philadelphia, PA. greensgrow.org. 

June 20 - 23. American Hosta Society Convention. Lectures, competitions, tours, vendors. The DoubleTree by Hilton, King of Prussia, PA. ahs2018philly.org.

July

July 6 - 8 & 13-15. Open Nursery and Garden Days with Garden Unplugged Chat Series. Plant Delights Nursery & Juniper Level Botanic Garden, Raleigh, NC. plantdelights.com. 

July 13. Native Plant Communities: Designing with Color, Ecology, and Management. Symposium hosted by the Association of Professional Landscape Designers (APLD) and Mt. Cuba. Register by June 30 and save $15. Mt. Cuba Center, Hockessin, DE. mtcubacenter.org

July 14. Attracting Pollinators to Your Garden. Lecture. Delaware County Master Gardeners, Springfield, PA. [email protected]. 

July 19. Succulent Container Design. Workshop. Greensgrow Farms, Philadelphia, PA. greensgrow.org.

July 19. Twilight Market. Local Food, Arts, Crafts and Music. Greensgrow Farms, Philadelphia, PA. greensgrow.org.

July 20. Woody Plant Conference. Symposium hosted by Chanticleer, Longwood Gardens, Morris Arboretum, Pennsylvania Horticultural Society, Scott Arboretum and Tyler Arboretum. Register by June 22 and save $20. Swarthmore College Lang Auditorium, Swarthmore, PA. woodyplantconference.org.

July 26. Director’s Seasonal Arboretum Walk — Summer. Temple Ambler, Bright Hall Circle, Ambler, PA. ambler.temple.edu

July 27. Moth Night at the Ambler Arboretum. Temple Ambler, Dixon Hall Terrace. Ambler, PA. ambler.temple.edu

July 28. Summer Garden Experience, including New Perennials for 2018, with Sharee Solow. Lectures, tours, garden experts, food. Penn State Southeast Agricultural Research and Extension Center (SEAREC), Landisville, PA. trialgardenspsu.com.

August

August 8. Small Spaces Series: Harvesting and Preserving. Lecture. The Delaware Center for Horticulture, Wilmington, DE. thedch.org.

August 8. Fashion Night! with Bridget Huzar and Taylor Johnston. Temple Ambler, Learning Center Auditorium, Ambler, PA.  ambler.temple.edu

August 11. The History of Kitchen Gardening. Lecture. Delaware County Master Gardeners, Springfield, PA. [email protected].

August 11. Good Libations Market. Local Ciders and Farmstand. Greensgrow Farms, Philadelphia, PA. greensgrow.org.

August 11. Wissahickon Valley Watershed Association (WVWA): Butterfly ID Workshop. Temple Ambler Arboretum, Ambler, PA. wwva.org.

August 14 - 16. PennState College of Agriculture and Natural Resources Ag Progress Days. Pennsylvania State University, State College, PA. agsci.psu.edu/apd.

September

September 7 - 9 and 14 - 16. Open Nursery and Garden Days with Garden Unplugged Chat Series. Plant Delights Nursery & Juniper Level Botanic Garden, Raleigh, NC. plantdelights.com. 

September 7. EarthFest Presents: Reach for the Stars.  Stargazing event. Temple Ambler Arboretum, Ambler, PA. temple.edu.

September 8. Fall Foraging. Walk, workshop. Delaware County Master Gardeners, Springfield, PA. [email protected].

September 8. Good Libations Market. Local Ciders and Farmstand. Greensgrow Farms, Philadelphia, PA. greensgrow.org.

September 20 - 23. American Dahlia Society 2018 National Show. Longwood Gardens, Kennett Square, PA. philadahlia.org.

September 20. Doylestown Nature Club One Day Bus Trip to Olmsted’s NYC Central Park. Open to the public; register by August 17. Tour departs from Buckingham, PA. Email Kathryn Schwenzer for questions and registration form. 

September 20. Twilight Market. Local Food, Arts, Crafts and Music. Greensgrow Farms, Philadelphia, PA. greensgrow.org.

October

October 2. 36th Herbal Symposium and Luncheon, The Magic of Herbs, with Pat Crocker. PA Heartland Unit of the Herb Society of America, Stokesay Castle, Reading, PA. paheartlandhsa.org.  

October 13. Tool Sharpening for Effective Pruning. Workshop. Delaware County Master Gardeners, Springfield, PA. [email protected].

October 13. Good Libations Market. Local Ciders and Farmstand. Greensgrow Farms, Philadelphia, PA. greensgrow.org.

October 16. Doylestown Nature Club Luncheon with Kirk Brown as Frederick Law Olmsted. Lunch/lecture. Register by October 6. Doylestown Country Club, Doylestown, PA. Email Kathryn Schwenzer for questions and registration form. 

October 18. Twilight Market. Local Food, Arts, Crafts and Music. Greensgrow Farms, Philadelphia, PA. greensgrow.org.

October 25 – November 18. Chrysanthemum Festival. Displays in the Conservatory and gardens. Longwood Gardens, Kennett Square, PA.  longwoodgardens.org.

November

November 4. Closing Day: Chanticleer Garden, A Pleasure Garden. Chanticleer, Wayne, PA. chanticleer.org. 

November 10. Native Owls of Pennsylvania. Lecture. Delaware County Master Gardeners, Smedley Park, Springfield, PA. [email protected].

November 14. Japanese Garden Design - The Stroll Garden with Sharee Solow. Lecture. Temple University Ambler, The Learning Center Auditorium, Ambler, PA. temple.edu.

December

 December 8. Greens & Gifts Sale. Delaware County Master Gardeners, Springfield, PA. [email protected].