johnny do you save any seeds for next season? Not just cilantro either! I planted seeds from a store bought jalapeno pepper but no such luck in sprouting any of it.
I've planted cantaloupe from saved seed for years, Always my pinto beans and corn.
I had to buy tobacco seed this year because of the late start I got last year with my tobacco. It never flowered and seeded.
Some things like basil, cumin and cilantro pretty much reseed themselves, but I do save seed and start them inside every year as well.
All of my garlic is started from stock I got from my daughter's in-laws in the past.
/johnny