Plants continue to develop roots throughout the fall despite the shorter, cooler days. Sale details

Peter will give two talks, at 10:30 and 1:30. Free admission. Non-members welcome. Details

Get your donations in by Oct. 31. Members can order in December. Details

NARGS is our parent organization...North American Rock Garden Society.  Value $40 US.

Speaking at our meeting on November 13. Free Admission. Non-members welcome. Details

This 'cobra' appears late in June. Details


Donors are asked to provide their list of seeds to Arie Vanspronsen by October 31. As well, we would appreciate receiving all of your seeds by that date. Unripened seed should be given to Arie when they are ready. You can expect to receive your newsletter containing this year's Seedex list early in December. Orders must be placed by December 31.

If you want to receive a printed copy of the Seedex. please info [at] onrockgarden [dot] com (subject: printed%20Seedex) (contact us  )

Members who want to be included in the draw for a free NARGS membership must let us know by Nov. 13. To submit your name, info [at] onrockgarden [dot] com (contact us)


What's New!

  • Posted on August 9, 2016

    ORG&HPS members, Marion Jarvie, Frank Kershaw and Ursula Eley, will be among the instructors for the Fall programs at Toronto Botanical Garden. TBG Program Guide.

  • Posted on July 13, 2016

    Seeds of Corydalis species and other spring ephemerals are available now. Because they are sold out quickly, you should place your order ASAP. BotanyCa

  • Posted on July 11, 2016

    Pruhonice Park

    There is a lot of excitement about this conference, now being organized for the 3rd year. May 10 – 15th 2017. Talks are all in English. Speakers from Sweden, Norway, Germany and Czech Republic well as SRGC, AGS and NARGS. Details. ORG&HPS contact is Arie Vanspronsen

  • 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  this fall from Botanus. Look for White Caucasus (one of the last to bloom), Eye Catcher, Spot On, Sea Breeze, Splish Splash and Sunshine.  info [at] onrockgarden [dot] com (subject: Bulk%20bulb%20Order) (See Alan's website  )


  • 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 October, 2016

 (air-uh-SEE-muh  fron-SHAY-tee-AY-num)

General Information:

It is late June in the shady garden and out of nowhere appears a spotted finger sticking out of the ground. It grows quickly unfolding a huge tripartite shinny leaf. Each lobe is almost as large as my hand. But the real treasure is hidden below the leaf – a striped cobra that needs to be seen to be believed.

Arisaema franchetianum ‘Hugo’, photo by Robert Pavlis

Arisaema franchetianum‘Hugo...