Seed Exchange

2017 - 2018 SEEDEX

The deadline for ordering seeds has passed and all orders have been shipped.

info [at] onrockgarden [dot] com (Contact us) if your order seems unusually delayed.

If you missed the exchange or want more seeds,  you can purchase ORG&HPS seed at Get the Jump on Spring, to be held at Toronto Botanical Garden on Feb 17.


Prepare for the 2018-2019 Exchange

First, join ORG&HPS. You must be a member to participate in the seed exchange.

Collect seeds from your garden this summer. All kinds of seeds are welcome - from alpines, border perennials, pond plants, shrubs, trees and wild flowers to edibles. "Mystery plants" also are welcome contributions. As you collect, make notes about the height and colour as well as the most correct name that you can find for the mother plant.

You do not have to donate seed to participate, but remember, if a listing is in limited supply when we fill orders, donors receive preference over non-donors .

From September through December, you will receive instructions from us about how to donate seeds and place orders.

Send your questions to seedex [at] onrockgarden [dot] com


2017-18 Downloads

2017-18 Seedex list.pdf

2017-18 Key to germination codes.pdf



Residents of the USA can order only those seeds approved for entry into your country. 
Restricted seeds are identified in our Seedex with the symbol [X] in the germination 
code. As well, USDA inspectors will reject any seed identified only as "sp." if even one
plant in its entire genus is considered endangered.

Please keep in mind that a Small Lots of Seed Permit is required and must be sent in 
with your order, along with the Conditions, an itemized list of the seed names, your
own mailing label and the yellow and green mailing label. If you have recently applied
for the permit, and expect it soon, you can send it later on.  USA regulations restrict
importation to 50 packets of seed, but if you fill in all 60 spaces, we'll stop when we
get to 50 if you were lucky enough to get all your wishes!