How to grow Aster 'Sunhelene'
Sunhelene 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 Sunhelene from seed
Transplanting Sunhelene
Sunhelene is hardy, so ensure you wait until all danger of frost has passed in your area before considering planting outside.
Harvesting Sunhelene