Look to ensure a distance
3.90 feet (1.20 metres) between seeds when sowing - bury at a depth of at least
0.98 inches (2.5 cm) deep. Soil temperature should be kept higher than
15°C / 59°F to ensure good germination.
By our calculations, you should look at sowing Butter Boy F1 about 10 days before your last frost date.
Ensure that temperatures are mild and all chance of frost has passed before planting out, as Butter Boy F1 is a tender plant.