Bicolor Pink-White Clematis

John Warren is a large-flowered clematis valued for upward-facing pink-and-white blooms with striped sepals. The flowers are unusually large for a garden vine, and the plant produces them on a mix of older and current stems. Its medium-sized growth suits a sturdy trellis or fence where the open flowers can be viewed close by. ## Flowers and placement [Spring Hill Nursery](https://springhillnursery.com/products/clematis-john-warren) reports flowers over seven inches wide, a height of 5–9 feet, zones 4–9, and flowering through summer. The same profile places it in its yellow pruning category and says it blooms best on old vine; [Clearview Horticultural Products](https://www.clearviewhort.com/product/john-warren/) describes it as bicolor and lists an 8–10 inch flower size. ## Maintenance Keep sound stems from the prior season when pruning so the early display is not lost, then shape after flowering as needed. Give the vine full sun or partial shade and fertile, well-drained soil. Provide a trellis or other support before the stems begin to climb.