Aim to sow
0.49 inches (1.25 cm) deep and try to ensure a gap of at least
5.85 inches (15.0 cm). For optimal germination, soil temperature should be a minimum of
5°C / 41°F.
By our calculations, you should look at sowing Bronze Arrow about 60 days before your last frost date.
Bronze Arrow is tender, so ensure you wait until all danger of frost has passed in your area before considering planting outside.
By our calculations, you should look at planting out Bronze Arrow about 45 days before your last frost date.