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