Propagation
Collect and sow seed when ripe, keep moist, maintaining a temperature of 19º to 27º C. (66º to 81º F) 

Germination normally takes up to 20 months and the seed viability period is long. The seedlings are difficult to transplant, use deep pots.

Botanic information
Leaf: The almost circular costapalmate fronds are divided into 80-100 drooping 1-ribed segments. The petiole is up to 3m (9ft) long and the dark margins are lined with spines. Remaining strap-like leaf bases are large and are arranged spirally around the trunk.  

Flower: The inflorescence is a very large terminal panicle that is 3m (10ft) to 8m (25ft) long and appear from pedunculated tubular bracts on the trunk. Hundreds of small bisexual cyathiform flowers with 3-sepals and 3-united petals form clusters along the rachillae. The flowers contain 6-stamens 3-cells and 3-ovules.
Flowering only occurs once when the palm is between 20 and 50 years old (monocarpic) during spring.

Fruit: The globose green to brown drupe has a hard exocarp and a fleshy mesocarp containing a spherical seed with non-ruminate endosperm.