Clematis, Nelly Moser Overview Category: Vines Common Name: Clematis, Nelly Moser Botanical Name: Clematis 'Nelly Moser' Sun Exposure: Full sun Height: 8-10 ft. Spread: Varies See notes | Back to vines Notes Flowers are pale pink with lilac pink bar, 6". Free flowering and compact. Good cutflower. Blooms early Summer & early Fall. Prune in early Spring, just above swelling buds on last year's growth.