How to grow Sweet william 'Greytown'
Keep in mind when planting that Greytown is thought of as hardy, 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 Greytown from seed
Transplanting Greytown
Ensure that temperatures are mild and all chance of frost has passed before planting out, as Greytown is a hardy plant.
Harvesting Greytown