La Marne Pink and white blend Bloom Large loose clusters of cupped and ruffled single blooms. Successive flushes of bloom spring, summer, and fall. Fragrant No Stem Few thorns. Planting Site Full sun. Good air circulation. Water Use Keep moist until established (usually requires one month to establish). Average water needs during growing season. Not recommended for areas with highly saline irrigation water. Cold Hardiness Hardy in zones 5-9. Blooms best in the fall.