Plant Samaritan Jo® Clematis in well-drained soil with full sun to partial shade. Ensure the roots are shaded while the top growth receives sunlight. Water regularly, especially during dry spells, to keep the soil consistently moist. Provide a trellis or support for climbing. Fertilize in spring with a balanced fertilizer. 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.