Yes but they do self seed easy if you dont catch the seed heads first.. some places they can be perennials and some types are perennials but are mostly annuals but do make a good amount of seed. Here's some interesting information about them. https://en.m.wikipedia.org/wiki/Antirrhinum
@markdavidson59 I have had mine in the garden for three years now, and they come up each year. In fact last year they didn’t really die. So yes collect seeds but leave them in situ to see what happens and keep us updated.