Fennel plant has gone to seed and is dying off as it does every year. How and when do I harvest the root? Can I save the seeds and grow more fennel?
I am including an article about how and when to harvest the root. As far as the seeds go, you can harvest and grow them, but be aware that if there are any dill, either in a garden or wild, nearby, then they will hybridize. This will mean that the plants will be part dill, and part fennel. Here is the article I promised: https://www.gardeningknowhow.com/edible/vegetables/fennel-vegetables/harvesting-fennel-bulbs.htm