How to grow Sweet william 'Whatfield Dorothy Mann'
Keep in mind when planting that Whatfield Dorothy Mann is thought of as hardy, so this plant will survive close to or on freezing temperatures.
Growing Whatfield Dorothy Mann from seed
Transplanting Whatfield Dorothy Mann
As Whatfield Dorothy Mann is hardy, ensure temperatures are mild enough to plant out - wait until after your last frost date to be on the safe side.
Harvesting Whatfield Dorothy Mann