I always have some Henbit. Not a lot mind you, just some. Usually it grows in the pebble walkways of the vegi gardens. However, there is so little as to have never been considered a problem. It is a bear to pull up though, with weak stems and a mass of very fine roots.
I'm not sure exactly what caused it but this year it has just exploded. It is every where to some degree but most prolific in the raised beds of the vegi garden. Even with the near perfect soil there, it is still a problem to pull up. Some beds were just solid side to side and end to end. It was growing in amongst the winter growth of Butter Crunch and Black Seeded Simpson Lettuce so I knew I would have to hand pull those.
I tried pulling Henbit with out much luck. The plants were just too close together. I finally got out one of the little bent tonged forks you get with a garden trowel when you buy the set. It worked much better but the plants were so thick that I just couldn't get enough pull on it to pull very big clumps. I went up to the shop and built me one with a long handle and it worked perfect. I'm not sure it will work very good for any other type weed but it made short work of the Henbit.