How to grow Sweet william 'Whatfield Wisp'
Keep in mind when planting that Whatfield Wisp is thought of as hardy, so this plant will survive close to or on freezing temperatures.
Growing Whatfield Wisp from seed
Transplanting Whatfield Wisp
Ensure that temperatures are mild and all chance of frost has passed before planting out, as Whatfield Wisp is a hardy plant.
Harvesting Whatfield Wisp