For this genre applies:
- Cold stratification 1-5º C for 2-4 weeks.
- Cold stratification 2-4º C for 2 months (July-August)
- Some seeds of this genus require scarification with sulfuric acid for 20 minutes.
Specifically for rhamnus lycioides:
-Immersion in hot water for 24 hours'.
Early Spring, Late Spring
Early Spring, Late Spring, Early Autumn, Late Autumn