Start seeds indoors six weeks before last frost date.
By our calculations, you should look at sowing Una Hartsock about 42 days before your last frost date.
Plant to the first set of true leaves to promote strong root growth.
Ensure that temperatures are mild and all chance of frost has passed before planting out, as Una Hartsock is a tender plant.Variety was originally requested by Julianna Griffin of Toronto, Ontario, from Plant Gene Resources Canada (Saskatoon, Saskatchewan). She then sent out samples to several growers.