This is NOT an answer. It is just a thought, which could trigger someone else to answer it for you.
I have had quite a few thoughts on this, one of which is Thyme (time = for weeks, used in kitchen service - and although a herb it does flower ?).
Weeks = perhaps AGE - Ageratum ? (another herb grown for its flowers)
Can you give us a question with a correct answer to go off? Although I am trying, I may be completely off the mark!