I think you will be OK with 3 or 4 Tuberose per 5 gallon pot. I grow them in the ground here and they multiply pretty fast. Are your taking them out of the pot in the winter? They should winter over for you in the pots, with just a little protection. Al

Thanks Al! I'm keeping them in their pot all year, but do switch the soil/divide the bulbs at the end of the season.

Ah tuberose.. cannot wait to smell their perfume again this year. I'm also growing Manfreda virginica this year; (it's related to tuberose, with a strong night perfume) :)