Keep in mind when planting that Sunlight White is thought of as hardy, so this plant will survive close to or on freezing temperatures. Sunlight White needs a loamy, sandy and clay soil with a ph of 5.1 to 6.0 (weakly acidic soil).
By our calculations, you should look at sowing Sunlight White about 56 days before your last frost date.
Ensure that temperatures are mild and all chance of frost has passed before planting out, as Sunlight White is a hardy plant.