Hardy Delavay Schefflera. Yes, this is a perfectly hardy Schefflera, unlike the tropical species which is the ever-popular container foliage plant. We have had temperatures is the low single digits with no damage at all to its leaves. Plant in filtered sun or shade. It produces impressive 3' compound leaves and will reach a height of 5-6' in 10 years, but can get much larger. In the fall it will produce 3' long sprays of small white flowers. It is dioecious, with separate male and female plants. Females will produce small shiny black berries. Even deer have not eaten the foliage so far!