Centaurea Jubilee Gem, also known as Bachelor's Buttons, is a semi-dwarf variety that grows 16" inches tall and features bright blue, double petal, 1.5" inch thistle-shaped flowers. It is the perfect height for border plantings, small garden spaces, window boxes and containers. Notably deer resistant and pollinator friendly, this variety is winter hardy to zone 3. A long loved country garden favorite, Jubilee Gem won a silver medal in the All-American Selection flower trials in 1937. A prolific self sower, this garden beauty will return year after year to brighten your spring. Packet: 100 seeds.