Propagating Japanese Maple (Acer palmatum): Grafting Rootstock Compatibility

Rootstock Compatibility

• Acer palmatum rootstock best for Acer palmatum scions.
• Compatible with Acer japonicum.
• Not compatible with Acer buergerianum.

Seed Propagation (Alternative)

Detailed stratification protocol from tree expert Jim Hyland:

1. Collect seeds when brown and falling.
2. Remove wings; soak 24 hrs in warm/hot water.
3. Mix with 50/50 peat/sand (moist, not wet).
4. Store at room temp 90 days, then refrigerate 70 days (don't freeze).
5. Time for spring planting after frost.
6. Check for early sprouting (>10% = plant immediately).
7. Sow on soil surface; cover with potting soil to 2x seed length.
8. Water thoroughly; allow to dry between waterings.
9. Provide 50% shade first few months to first year.