Chrysalidocarpus (Dypsis) psammophilus x decaryi

Common Name:  Chrysalidocarpus (Dypsis) psammophilus x decaryi

Sun:  Shade when young, full sun once trunking

Growth Rate:  Unknown

Fertilizer:  Low

Water:  Low

Cold Tolerance:  Unknown. Probably 30 deg F


History:  First produced in our lab in Ft. Myers, FL in 2022. All seedlings died due to being potted up into Foxfarm Ocean Forest (harbors diseases in our tropical climate). We have seedlings sprouting now in 2025 that look like a legit brand new batch, but we will need to grow them up to 1 gallons to verify their progeny before sending to our distributors.


Production:
  The seed parent is Chrysalidocarpus psammophila (White Sand Palm) from coastal sand dunes of Madagascar. The pollen parent is Chrysalidocarpus decaryi (Triangle Palm) also Madagascar. 15 seedlings were produced in 2022 (all died) but we hope to have another small batch ready for sale in 2026.


Benefits:  This palm combines the black and green trunk of the White Sand Palm with the triangular leaf arrangement of the Triangle Palm, making it an extremely colorful palm that should do great in tropical, sub-tropical, mild desert, and Mediterranean climates. This hybrid should be extremely drought tolerant. This hybrid is also sterile- meaning it does not produce viable seed- which can be of benefit in a landscaping application because it will not foster a colony of unwanted seedlings at the base of the tree which often have to be sprayed or removed.


Identification:  Pure Chrysalidocarpus psammophila seedlings have very wide, fat leaflets on the bifid eophyll (first leaf). When hybridized with C. decaryi, it will have very narrow bifid leaves, only about ¼” wide leaflets, and a deep forest green color.