種まき時期は、、、種販売しているサイト(イギリス)では2~4月 発芽気温20~25度らしい。 Lightly scarify seed before sowing. Sow seed on the surface of a free-draining, damp, seed compost and cover with a layer of compost or vermiculite, 6mm (1/8in) deep. Place in a propagator or seal container in a polythene bag at a temperature of 20-25C (68-77F) until after germination which takes 14-21 days. Do not exclude light as this helps germination. Transplant seedlings when large enough to handle into trays or 7.5cm (3in) pots. Gradually acclimatise plants to cooler conditions for a few weeks before planting out after all risk of frost, 30cm (12in) apart.