Look to ensure a distance
11.7 inches (30.0 cm) between Choo-Choo Fantasy seeds when sowing to make sure your seedlings have enough space.
By our calculations, you should look at sowing Choo-Choo Fantasy about 42 days before your last frost date.
Ensure that temperatures are mild and all chance of frost has passed before planting out, as Choo-Choo Fantasy is a hardy plant.