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