Tuberose Plant. Tuberose, (polianthes tuberosa), perennial garden plant of the asparagus family (asparagaceae), cultivated for its fragrant flowers. Its full name is polianthes tuberosa but the more common names of the most popular varieties include mexican.
Tuberose flowers all the year round. Select a sunny site or container with good drainage protected from wind. When you first plant your tuberose, only water it when the soil gets completely dry.