Keep in mind when planting that Dame Alice de Hales is thought of as tender, so remember to ensure that temperatures are mild before moving outdoors.
Soil temperature should be kept higher than
68°C / 154°F to ensure good germination.
By our calculations, you should look at sowing Dame Alice de Hales about 77 days before your last frost date.
As Dame Alice de Hales is tender, ensure temperatures are mild enough to plant out - wait until after your last frost date to be on the safe side.