While it may look pretty when it flower, Broomweed is terrible on the allergies (at least ours). End of last year the broom weed was so plentiful that when the wind blew there was this swath of yellow dust. With the drought this year the broom weed is definitely down so I took the advantage and mowed around the water tank and other sections (several acres) to cut down the weed about to go into flower – hopefully this helps in getting it under control (we are trying to not use poison control).