I have lots of plants in my garden yet that have went to seed, most I'm sure have already scattered their seeds but some I dont think have. But I can't tell for sure whats a seed, and whats just chaff. My coneflowers, mums, sedums, and threadleaf coreospis are some plants I believe still have seeds, but dont know for sure. I dont want to collect these and have them just be chaff, especially for trading!
Anyone know of a website, book, etc. that would help me with this?