On April 8, 12:30. Great plants and super bargains. View meeting details

At TBG, starting at 1:30, on April 8. Details.

11 a.m. - 2 p.m. at Toronto Botanical Garden. Public is welcome. No admission charge. Details.

At Royal Botanical Gardens, Burlington. 9 a.m.  - 2 p.m.

Plant of the Month for March.... an onion! Details.


Our major fund-raiser for the year will be held at Toronto Botanical Garden on May 6, 11 a.m - 2 p.m. You can be sure of finding a great selection of hard-to-source rock garden plants, large, healthy perennials and specialty items for urban gardens.

Payment by cash and credit card. Note: Some vendors will accept cash only.

The public is invited. There is no admission charge and free parking is available.

What's New!

  • Posted on February 5, 2018

    Deborah Hardwick sent this note. " On behalf of my friends Wim Snoeijer and Marie Laure Rauline in Orleans France, I am forwarding an invitation to a Clematis meeting followed by a trip to an amazing flower show in Chantilly France. We have an international group of registrations for the meeting and event from Malaysia, Germany, USA, Holland among other countries. If this is of interest to you, I would be happy to answer any questions! "  info [at] onrockgarden [dot] com (Contact us) to be put in touch with Deborah.

  • Posted on February 4, 2018

    The 2018 catalogue is now available. Nursery reopens in April. View catalogue

  • Posted on January 23, 2018

    Clematis 'Endellion'

    What will Peter will be selling this year? Download list. To reserve plants, p [dot] keeping [at] sympatico [dot] ca (contact Peter)

  • Posted on January 18, 2018

    Saturday, June 16 - 9:00 a.m. to 4:00 p.m. at the University of Guelph Arboretum. Instructor is ORG&HPS member, Robert Pavlis. Includes topics like collecting, cleaning, storing, dormancy, and stratification, various techniques for starting seeds and vegetative propagation including division, cuttings, layering and budding. Early Bird Fee: $80.00 if done on or before Thursday, June 7. Registrations after this date will cost $90.00. Details.

  • Posted on December 26, 2017

    Dawn and Doug Golloher have posted their catalogue which includes 140 new additions. Lots of fabulous hostas. http://gardensplus.ca

Upcoming Speakers

In the Footsteps of George Sherriff

Julia Corden

Julia Corden has been the Garden Manager at The Explorers Garden, Pitlochry, Scotland for the past 15 years. The garden celebrates 150 years of Scottish Plant Hunters who traversed the world in search of plants: Forrest, Douglas, Sherriff and many...

Plant of the Month for March, 2018

 (AL-ee-um  kar-uh-taw-vee-EN-see)

General Information:

Allium karataviense ‘Ivory Queen’ is a very unusual onion. The leaves are very wide, grow close to the ground and cup a large head of white flowers. Even in flower, the plant is only about 8 inches tall. Common names include kara tau garlic and Turkistan onion.

Allium karataviense ‘Ivory Queen’ : photo by Robert Pavlis

Allium karataviense ‘Ivory Queen’...