Is it ok to give your plants molasses up until harvest or is it better to just give them water for the last few weeks to flush?
Yes, it's fine to use up until harvest.
Ok. Thank
You will get yes and no's, everyone is different. I am organic so I don't flush or stop nutrients right up to harvest. As for molasses I'm guessing you want to keep potassium to the plants while flushing. I don't see an issue myself.