Keep in mind when planting that Shamus is thought of as tender, so remember to wait until your soil is warm and the night time temperature is well above freezing before moving outside.
Growing Shamus from seed
By our calculations, you should look at sowing Shamus about 91 days before your last frost date.
Transplanting Shamus
Ensure that temperatures are mild and all chance of frost has passed before planting out, as Shamus is a tender plant.