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