Keep in mind when planting that Carambola Yellow is thought of as very hardy, so this plant will tend to survive through freezing conditions. Ideally plant in loamy soil and try to keep the ph of your soil between the range of 6.0 and 7.0 as Carambola Yellow likes to be in weakly acidic soil to neutral soil.
By our calculations, you should look at sowing Carambola Yellow about 56 days before your last frost date.
Ensure that temperatures are mild and all chance of frost has passed before planting out, as Carambola Yellow is a very hardy plant.