Keep in mind when planting that Toscana is thought of as hardy, so it can be safe to leave outdoors for the majority of winter (although if in doubt, using a row cover is often a good idea).
Growing Toscana from seed
High temperatures inhibit germination. Requires light.
Transplanting Toscana
Ensure that temperatures are mild and all chance of frost has passed before planting out, as Toscana is a hardy plant.