Wheaton Public Library Hosts Seed Swap with Sustain DuPage Dreaming of Spring and fresh produce from your garden? Get a head start on your planning and join Sustain DuPage at our free Seed Swap! What to bring: We welcome heirloom and open pollinated seeds, including those purchased packets you didn’t use all of last year. Please bring seeds saved or purchased within the last 2-4 years or less, and stored in a cool, dark, and dry place. Label the seeds with the type, variety, and the date and location they were harvested, along with any other descriptions that might be helpful. An...