Seed exchanges stoke the gardening obsession

Serious gardeners are turning to seed exchanges to source rare and heirloom plant varieties, The Wall Street Journal reported.

Fellow gardeners in the group can order seeds at little or no cost. The appeal of these exchanges is that they frequently offer unusual varieties of plants not typically found in catalogs, whether it's a species grown by few collectors, or an "heirloom" seed variety passed down for generations.

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