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Tom Clothier’s Garden Walk and Talk
Tom Clothier has a number of seed germination databases on a wide range of plant types: annuals, biennials, perennials, shrubs, and even a dedicated Penstemon germination database! He also has several articles, and an index for Norm Deno’s works.
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NARGS
The Sierra Rock Garden Society is an official local Chapter of the North American Rock Garden Society (NARGS). NARGS encourages and promotes: ♦ The study, cultivation, and conservation of rock garden plants ♦ Interest and knowledge of rock garden design and construction Benefits of NARGS are many and include an extensive seed exchange, bookstore, slide library, and a library loan service. All […]
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Alplains Nursery
Alplains is run by Alan Bradshaw in Colorado. In addition to providing a great seed catalogue containing many western natives, his site is also a great resource for germination requirements of many plants.