'H.F. Young' has huge, 6-9" blossoms. This cultivar has single, soft blue and violet saucer-shaped blooms with cream anthers, a deciduous, compact climber belonging to AHS group B. Large, wide, early summer flowers are borne on side-shoots growing from last year's shoots. Additional blooms may be borne on the tips of the present year's growth. Leaves are divided into 3 widely or regularly lance-shaped leaflets, 4 to 6 inches long. Beautiful along fences and arbors. Part shade is preferable. This vine grows best in a fertile, well-drained, alkaline soil. A choice site is key to the success of establishing this perennial; roots should be kept cool and moist.
Size: #1 Stem Cutting
Hardiness: Zones 4-9
Spacing: 4' and 1-2" deep
Bloomtime: May-June and Sept
Exposure: Sun to Partial Shade
Flower: Medium blue flowers with contrasting cream stamens
Foliage: Leaves are opposite and widely spaced on thin vines with tendrils for entwining.
Pests: Deer Resistant and Resistant to Walnut Toxicity, Aphids, Clematis Borer, Stem Rot and Slugs
Notes: Clematis may be planted and trained to cover walls, trellis, posts, fences, arbors or to cover rocky sites. It will need support. Prefers a rich, well-drained soil with a pH of 5.6-6.5. Clematis do best in neutral or slightly alkaline soils, but they are somewhat adaptable. If you have very acid soil, try to add some calcium when you plant. Roots should be planted in a cool moist environment, while the vine itself should be in the sun. Root area should be protected. They require 1" of water a week. 'H. F. Young' is one of the most compact and free-flowering of all the clematis, making it ideal for smaller gardens and growing in containers. Its blue flowers with yellow anthers are produced from late spring to early summer, and again in late summer. By general consent, it is one of the best blue Clematis.
Clematis Repeat Blooming (Group B)
These are early double and semi-double mid-season cultivars. They bloom mid June and if healthy they will bloom again around September in a smaller show of color. These bloom on the new growth that is produced from old buds produced on stems from the previous season. If they are pruned to the ground, they will bloom, but will miss the big and beautiful early flower period. Remove dead and weak stems in February or March, leaving the best of last yearÃ¢â‚¬â„¢s buds. Once they finish blooming, cut the plant back to 16" to encourage new growth for fall flowering.