Try to plant in a location that enjoys full sun and remember to water moderately. African Queen is generally regarded as a hardy plant, 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 African Queen from seed
By our calculations, you should look at sowing African Queen about 56 days before your last frost date.
Transplanting African Queen
African Queen is hardy, so ensure you wait until all danger of frost has passed in your area before considering planting outside.