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