You asked:

is sweet broom a perennial

No. A cute broom is not a perennial.
perennial
perennial

perennial plant (a plant lasting for three seasons or more)

tk10publ tk10canl

Say hello to Evi

Evi is our best selling mobile app that can answer questions about local knowledge, weather, books, music, films, people and places, recipe ideas, shopping and much more.

To experience the full power of Evi you can download her app for free on iOS, Android and Kindle Fire.

Other ways this question is asked: