Harvesting and Testing Sago Palm Seeds

Timing and Viability

Sago palm (Cycas revoluta) seeds ripen January-February. If your female cone is showing orange seeds now, they're likely mature. Test viability before investing time.

Float Test

1. Place seeds in a container of water.
2. Viable seeds sink; non-viable (empty/hollow) seeds float.
3. Discard floaters; plant sinkers.

Harvest and Storage

• Seeds release easily from the cone when fully ripe (Jan-Feb).
• Clean off the fleshy orange sarcotesta—wear gloves, it can irritate skin.
• Air-dry 1-2 days, then store in a paper bag in a cool, dry place until planting.
• Or plant immediately in well-draining mix, 1 inch deep, kept warm and moist.

Germination Notes

• Erratic: 1-6 months.
• Bottom heat (80-85°F) speeds and synchronizes germination.
• Deep pots needed for the long taproot.
• Seedlings resemble grass initially—don't mistake for weeds!

Resource

Excellent detailed guide with photos: Rhapis Gardens Sago Seed Page

Your timing is perfect—harvest in January/February for best results.