Size: Up to 50 feet tall (15 m) Up to 20 feet in diameter (6 m), generally smaller
Min. Temperature: 30°F (-1°C)
Water Requirements: Regular water
Sun Requirements: Full sun
Origin: Madagascar
Leaf: Costapalmate, 10-25 silvery blue green leaves. Woolly wax on the bottom. Cleft to 1/3 of the leaf size. Filaments between the segments, Up to 10 feet across (3 m). 2 feet long petioles (60 cm) divided at the base.
Trunk: No crownshaft, Mature trees have dark gray trunks, smooth with leaf scars. Immature trunks still have old leafbases, 12 to 18 inches in diameter (30-45 cm).
Flower: The Bismarck palms are dioecious. Male and female flowers occur on different trees.. Flower stalk coming from among the leaves.
Fruit: Speckled brown. 1.5 inch diameter. round.
Seed: 1.5 inch. oval.