Knowing how to collect carrot seeds is a little more involved than typical seed saving. Carrots are biennial plants and don't flower until their second year. By planning ahead and leaving a few carrots in the ground over winter, you can reward yourself with thousands of carrot seeds.
"The Complete Guide to Saving Seeds": https://amzn.to/3luTKik
"Seed to Seed: Seed Saving and Growing Techniques for Vegetable Gardeners" https://amzn.to/2CRAPtr
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