Try to plant in a location that enjoys full sun and remember to water moderately. Keep in mind when planting that Ile de France is thought of as hardy, so this plant will survive close to or on freezing temperatures.
Growing Ile de France from seed
By our calculations, you should look at sowing Ile de France about 56 days before your last frost date.
Transplanting Ile de France
Ensure that temperatures are mild and all chance of frost has passed before planting out, as Ile de France is a hardy plant.