Keep in mind when planting that Allure Hot Coral is thought of as half hardy, so it will need cloching or fleece protection when the temperature dips. Allure Hot Coral tends to grow best in a soil ph of between 6.0 and 6.5 meaning it does best in weakly acidic soil.
By our calculations, you should look at sowing Allure Hot Coral about 105 days before your last frost date.
Ensure that temperatures are mild and all chance of frost has passed before planting out, as Allure Hot Coral is a half hardy plant.