ORGHPS Germination Guide: Sow immediately, Either the viability of these seeds is short or the species propagates best with fresh seed. Stored seed might be coaxed into germination with temperature cycling and patience. Sow @ 20°C. Seed germinates within 3 months * Sow 5 mm deep in a pocket of sand in a 9 cm pots which contains well drained soil. Germinate in bright light @ 26 °C. Keep moist, but not too wet. During the dormant period, small plants may still need a little watering.

Source: Ontario Rock Garden & Hardy Plant Society