Plant Bernadine® Clematis in well-drained soil with full sun to partial shade. Ensure the roots are shaded while the top receives sunlight. Water regularly, keeping the soil moist but not waterlogged. Fertilize in spring with a balanced fertilizer. Train the vines on a support structure. Prune lightly after the first flowering to encourage a second bloom, and perform a more thorough pruning in late winter or early spring, cutting back to a pair of strong buds about 12 inches above the ground.