I have three plants, and the last flowering had an intense aroma, now they are flowering again, there are more than 30 flowers but they do not have aroma, what is going on? Anybody can help please?
They usually will not have an aroma until late evening or very early morning. In nature the hummingbird moth is one of its major pollinators and is only active at night.
Lonnie is right. Plus, some plants lose their fragrance when it really cools down.