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. 

To have your event added to our "Upcoming Events Outside HPS/MAG", click on this link to fill out a request form. Your event will be reviewed and posted as long as there are no conflicts.  

May

May 7 Philadelphia Chapter of the Herb Society, Historic Yellow Springs Meadow, 10 am to 2 pm https://www.hsaphiladelphia.org/herb-sale

May 8-9 Herb & Garden Faire, Landis Vally Village and Farm, Landisville

May 9 Dahlia Society Tuber Sale in front of Longwood Gardens Visitor Center

May 9 Delaware County Master Gardeners Sale, May 9, 2026 – 9:00 am. to 1:00 pm 
Delaware County Extension office grounds, Smedley Park, 20 Paper Mill Road, Wallingford,PA 19064 

May 9 Uwchlan Garden Club Uwchlan Meeting House, Lionville

May 9-10  Brandywine Conservancy Wild Flower, Native Plant and Seed Sale https://www.brandywine.org/conservancy/events/wildflower-native-plant-and-seed-sale

May 9 Ambler Arboretum of Temple University, 580 Meetinghouse Road Ambler PA 19002. Open Days of the Collins Nursery of Ambler Arboretum - Native Plant Sales. https://ambler.temple.edu/arboretum/collins-nursery

May 16 – 9 am to 1 pm  Montgomery County Master Gardeners, Montgomery County Fairgrounds, 1015 Bridge Road, Collegeville, PA 19426 

May 16 9 am to 1 pm GreenAllies at the Althouse Arboretum, 1794 Gilbertsville Road, Pottstown, PA 19464. Find rare, unusual, and funky plants from a number of growers at the Funky Plant Sale:Botanical Oddities! This sale is where plant lovers gather to hunt for plants that are hard to find, visually strange, or especially collectible. Plants not normally found in nurseries! We will also have a selection of native plants, herbs and vegetable! https://www.facebook.com/events/954361793781353

May 17 10:00am - 2:00pm The Ambler Keystone Branch of the Women's National Farm & Garden (WNF&G), 1400 Twining Valley Road, Dresher. will sell small plants from local gardens and "plugs" for $5 each at the annual Twining Valley Park Native Plant Sale.  https://www.amblerfg.org/

May 18-23 The American Iris Society 2026 NJ/NY Conference. Explore irises in New Jersey and New York via 4 different gardens. The four gardens are: Brooklyn Botanic Garden, Presb Memorial Iris Garden, Rutgers Gardens and Gary Slagle's garden in Phanaticville. https://ais2026convention.org/

May 29 @ 6:30 pm and May 31, 2026 @ 2pm at Bartram's Garden; May 30, 2026 @ 7:30 pm  at Perelman Theater. Organized by the Philadelphia Chamber Music Society. Nature walks with Suzanne Simard and Robin Wall Kimmermer + concert with Roomful of Teeth at Bartram's Garden, and a Panel Discussion with Simard & Kimmerer at the Perelman Theater.  Website: https://www.pcmsconcerts.org/projects/rootsong/

May 30 Ambler Arboretum of Temple University, 580 Meetinghouse Road Ambler PA 19002. Open Days of the Collins Nursery of Ambler Arboretum - Native Plant Sales. https://ambler.temple.edu/arboretum/collins-nursery

June

June 13 Ambler Arboretum of Temple University, 580 Meetinghouse Road Ambler PA 19002. Open Days of the Collins Nursery of Ambler Arboretum - Native Plant Sales. https://ambler.temple.edu/arboretum/collins-nursery

June 13 & 14 1:00pm - 4:00pm Society Hill Civic Association Garden Tour, Old Pine Community Center, 401 Lombard Street, Phila. PA 19147Tickets are now on sale for this self-guided walking tour of 15 gardens in beautiful, historic Society Hill, Philadelphia, PA. societyhillcivic.org/gardentour

June 13-14 Gardens of Society Hill Tour, Old Pine Community Center, 401 Lombard street, Philadelphia, PA 1:00 - 4:00pm. The Gardens of Society Hill Tour: A self-guided walking tour of 15-17 gardens in beautiful, historic Society Hill in Philadelphia. Be enchanted by these lush city gardens tucked away from view. Get inspiration for your own gardens. Ticket prices; $35 in advance: $40 at the door. A truly fun and inspiring event. www.societyhillcivic.org

BEYOND THE GARDEN GATE: AN INVITATION TO A STATE-WIDE GARDEN TOUR                                

This year, there is an especially exciting opportunity for garden lovers. In honor of our nation’s 250th anniversary, GCFP (Garden Club Federation of PA) is hosting the first-ever Pennsylvania garden tour, showcasing private residential gardens across the state. 

The PA Garden Party will feature 90 gardens statewide on Saturdays, June 20 and June 27, 2026, from 9:30 a.m. to 4:00 p.m. rain or shine.  For a full listing of the garden clubs participating across the state, visit https://pagardenclubs.org/gcfp-2026-garden-party.  Below are the local participating clubs:

  • June 20: Gardens from The Garden Club of Bala Cynwyd and the Villanova Garden Club will be featured along the Main Line (Montgomery County). Springfield Garden Club (Delaware County) will also participate.
  • June 27: Chester County will be featured, with gardens from the Spade and Trowel Club of Kennett Square and the Uwchlan Garden Club with gardens in the West Chester/Downingtown area. Uwchlan will also host local garden writers for book signings—you may even encounter Pam Baxter, local garden writer, author, and columnist, or Jenny Rose Carey, noted garden writer and speaker.
    On the same day, the Norristown Garden Club will open members’ gardens spanning from Ambler to Malvern.

A $25 ticket includes a tour book—your admission to all participating gardens on both Saturdays. The book includes the garden descriptions, addresses, maps, and GCFP information.

Tickets are available March 1 through June 6, 2026, via check or credit card at pagardenclubs.org. After June 6, tickets will be $30 and available at designated gardens listed on the website.

For additional information, contact [email protected] , Uwchlan Garden Club

July

July 4 Ambler Arboretum of Temple University, 580 Meetinghouse Road Ambler PA 19002. Open Days of the Collins Nursery of Ambler Arboretum - Native Plant Sales. https://ambler.temple.edu/arboretum/collins-nursery

July 11 Ambler Arboretum of Temple University, 580 Meetinghouse Road Ambler PA 19002. Open Days of the Collins Nursery of Ambler Arboretum - Native Plant Sales. https://ambler.temple.edu/arboretum/collins-nursery

July 17 Woody Plant Conference more information click here.

August 

August 15 Ambler Arboretum of Temple University, 580 Meetinghouse Road Ambler PA 19002. Open Days of the Collins Nursery of Ambler Arboretum - Native Plant Sales. https://ambler.temple.edu/arboretum/collins-nursery

August 18-21 International Waterlily & Water Gardening Society (IWGS) in St. Louis, Missouri. Join water gardeners from around the world for a three-day symposium featuring expert speakers and tours of gardens and plant science centers in and around St. Louis, MO. https://iwgs.org/2026-symposium-stlouis/

September

September 12 Ambler Arboretum of Temple University, 580 Meetinghouse Road Ambler PA 19002. Open Days of the Collins Nursery of Ambler Arboretum - Native Plant Sales. https://ambler.temple.edu/arboretum/collins-nursery

September 26 Ambler Arboretum of Temple University, 580 Meetinghouse Road Ambler PA 19002. Open Days of the Collins Nursery of Ambler Arboretum - Native Plant Sales. https://ambler.temple.edu/arboretum/collins-nursery

October 

October 17 Ambler Arboretum of Temple University, 580 Meetinghouse Road Ambler PA 19002. Open Days of the Collins Nursery of Ambler Arboretum - Native Plant Sales. https://ambler.temple.edu/arboretum/collins-nursery