Yup! They are biennials and that means the first year they establish their roots and grow a bit of leaves. The second year they flower, set seed and die. But, they do set seed so you can either collect the seed and plant them in the fall where you want them or let the seeds fall where they may. The strongest ones will sprout. Sometimes they will even wait 3 years before they bloom and then you'll have them every year.

Newt

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When weeding, the best way to make sure you are removing a weed and not a valuable plant is to pull on it. If it comes out of the ground easily, it is a valuable plant.