Keep in mind when planting that Strawberry crush is thought of as very hardy, so this plant will tend to survive through freezing conditions. Strawberry crush needs a loamy soil with a ph of 6.0 to 7.0 (weakly acidic soil to neutral soil).
By our calculations, you should look at sowing Strawberry crush about 56 days before your last frost date.
Ensure that temperatures are mild and all chance of frost has passed before planting out, as Strawberry crush is a very hardy plant.