Scarification: file or sand through the outer seedcoat, or , Soak in sulfuric or nitric acid for 2-4 hours and wash under cold water for 10-15 minutes.
Stratification: cold stratify for 60 -120 days
Germination: Sow flat in any rich, well drained, rocky or sandy soil. Do not cover seeds with soil. Keep pots in full sun in a protected spot outside.