Windmill Palm Seed Propagation: Detailed Steps from LSU

Seed Handling

1. Plant ripe seeds immediately—viability drops in 2–3 weeks.
2. Soak seeds, remove fleshy coat.
3. Scarify hard coats to speed germination.
4. Plant in sterile medium (½ peat, ½ sand/perlite/vermiculite) at depth equal to seed width.
5. Provide bright light, high humidity, moist soil, 80–95°F; bottom heat helps.
6. Germination: 4–8 weeks to 3–7 months depending on species.
7. Transplant to individual pots when first leaf is 2–4 inches.
8. Plant in landscape April–August at 2–3 ft tall; protect from full sun and wind until established.

Reference

Palms in South Louisiana.