Sow indoors from March to the beginning of May
Sow outside from April to June
Ensure a seed sowing distance of
8.58 inches (22.0 cm). Soil temperature should be kept higher than
21°C / 70°F to ensure good germination.
By our calculations, you should look at sowing Surpresso about 42 days before your last frost date.
As Surpresso is tender, ensure temperatures are mild enough to plant out - wait until after your last frost date to be on the safe side.