This guide provides recommendations for the germination of over 8800 seeds listed in the seed exchange of the Ontario Rock Garden & Hardy Plant Society between 1995 and 2024. For each species, a single germination technique has been chosen from several successful approaches for dry seed stored 6 months @ 20°C, except where noted.
While this data is based primarily on the experience of ORG&HPS members, we have relied extensively on methods described by Norman Deno. His publications can be found here:
https://www.gardenmyths.com/wp-content/uploads/2018/06/Deno-Seed-Germination-Introduction-min.pdf
https://www.gardenmyths.com/wp-content/uploads/2018/06/Deno-Seed-Germination-First-Suplement-min.pdf
https://www.gardenmyths.com/wp-content/uploads/2018/06/Deno-Seed-Germination-Second-Suplement-min.pdf
We also utilize germination information from Dr. Pavel Slaby ( https://flora.kadel.cz/ ), Tom Clothier ( http://tomclothier.hort.net) and Gene Mirro, an authority on lilies. We are continuing to collect complete data on many species.
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