Try to plant in a location that enjoys full sun and remember to water moderately. Keep in mind when planting that Hannay's Blue is thought of as hardy, so this plant will survive close to or on freezing temperatures.
Growing Hannay's Blue from seed
By our calculations, you should look at sowing Hannay's Blue about 84 days before your last frost date.
Transplanting Hannay's Blue
Ensure that temperatures are mild and all chance of frost has passed before planting out, as Hannay's Blue is a hardy plant.