They do look common at first glance, but Nicotiana buds, a.k.a. Deep Purple, are an exciting sight. I don't water them very much as they drown easily. These flowers characteristically bloom even without enough cultivation. In fact, they can handle
extreme drought cases and do not require special soil or fertilizer. Sometimes, I extract the flower's scent in a bottle, because it's heavenly. You can smell the flower's natural perfume better at nighttime.