Sow indoors at any time, sow under glass in spring. Surface sow onto moist, well-drained seed compost. Ideal temp. 10-16°C. Germination takes 21-30 days approx. If germination has not occurred after 4 weeks cold stratify. Move to 4°C for 2-4 weeks then return to warmth for germination. Transplant seedlings when large enough to handle to 8cm pots and grow on. Acclimatise and plant out after danger of frost has passed.
So sound pretty easy going.
I think I'll sow mine in modules with the hope of getting some plug plants.
Good luck with yours.