Ruby gold babyface is generally regarded as a hardy plant, so it can be safe to leave outdoors for the majority of winter (although if in doubt, using a row cover is often a good idea).
Growing Ruby gold babyface from seed
By our calculations, you should look at sowing Ruby gold babyface about 90 days before your last frost date.
Transplanting Ruby gold babyface
Ruby gold babyface is hardy, so ensure you wait until all danger of frost has passed in your area before considering planting outside.