Look to ensure a distance
2.92 feet (90.0 cm) between seeds when sowing - bury at a depth of at least
0.99 inches (2.54 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 Jemmer F1 about 42 days before your last frost date.
Ensure that temperatures are mild and all chance of frost has passed before planting out, as Jemmer F1 is a tender plant.
By our calculations, you should look at planting out Jemmer F1 about 14 days after your last frost date.