Journal, Seedex, Speakers, Sales, Workshops and more -- Join!

The plant sale will start at 12:30 noon on Sept 11 at TBG and resume after the speaker. Everyone is welcome! Read more

Members can visit some of the best gardens in southern Ontario! Tours on June 12, July 17 and August 7. Join now.

Speaking September 11. Admission free. Non-members welcome. Details

Hear this talk by a leading alpine gardener. Free admission. Non-members welcome. Details

Tiny jewels for your spring rock garden. Read more.


Our members have some of the most interesting and diverse gardens in Ontario. If you are a member, you can participate in our tours for free.

July 17: Burlington, Hamilton (Note: Our membership card is required for discount admission to Royal Botanical Gardens. info [at] onrockgarden [dot] com (subject: membership%20card) (Contact us) for a card if you need one.)

August 7: Kawarthas, Lindsay, Buckhorn, Young's Point

What's New!

  • Posted on June 15, 2016


    Opuntia 'Tutu'

    Right now, there is a gorgeous display of hardy cacti in bloom at  Anna's Perennials. Anna Mizyn is a member of ORG&HPS.  Photos

  • Posted on June 15, 2016

    Gardens Plus, a member of ORG&HPS, specializes in hostas and daylilies. They are hosting Hosta Fest until the end of July.  Daylilies will be featured from July 13 to July 31. Open 6 days a week. Details on website.

  • Posted on June 12, 2016

    Alan McMurtrie's Iris reticulata hybrid Spot On is now available in Canada.

    'Eye Catcher'

    Alan McMurtrie is a leading hybridizer of reticulated irises who hails from Ontario. Some of his beauties are going to be available in the bulk bulb order for ORG&HPS members this fall. They include White Caucasus (one of the last to bloom), Eye Catcher, Spot On, Sea Breeze, Splish Splash and Sunshine. info [at] onrockgarden [dot] com (Contact Barb and Bella )for details of bulk bulb order..  info [at] onrockgarden [dot] com (subject: Bulk%20bulb%20Order) (See Alan's website  )


  • Posted on May 20, 2016

    Read about spring maintenance advice from ORG&HPS member, Marjorie Harris.

  • Posted on May 11, 2016

    See the detailed posting by Matt Matus, president of NARGS, on how to plant an alpine trough.

Upcoming Speakers

Viornas - a Special Double Presentation at 11:00 a.m. and 1:30 p.m.

Deborah Hardwick

Deborah Hardwick is an avid 'clematarian' who has spent the last 15 years studying, collecting, growing and now hybridizing clematis. Her garden contains a collection of over 1300 registered and species clematis taxon in addition to her nursery with...

Plant of the Month for June, 2016

 (EAR-rin-us  AL-pin-us)

General Information:

Erinus alpinus has won the Royal Horticultural Society’s Award of Garden Merit for being an outstanding plant to add to your rock garden or alpine trough, or let it naturalize in the tiny cracks of a brick wall. This alpine plant is a tiny thing that produces lots of flowers.

Erinus alpinus by Robert Pavlis

The pictures in this blog show several small seedlings in their second year. You can clearly see two colour forms of this plant and it is also available in pink. It is known by several common...