Clematis is divided into three prune groups. Group 1 is the early-flowering species-ones that bear flowers on the previous year's shoots in winter and early spring. Group 2 is the midseason, large-flowered cultivars that bear flowers in late spring and early summer on the previous year's growth and in mid to late summer on the current year's growth. Group 3 is the late, large flowered cultivars, small-flowered cultivars, and late-flowering species, that bear flowers in summer and into early fall on the current year's shoots.
Stunning 4" true red flowers display their beauty nearly all summer long! The flower tepals have deeply veined midribs and margins that are somewhat scalloped and recurving. As each flower matures, the tepals twist which creates an interesting combination of aging twisted flowers and fully open new flowers. 'Mme. Julia Correvon' is a vigorous grower that looks lovely when allowed to grow through small trees, up a rock wall, or trellis! Once this summer bloomer has been established it will only need a watering every couple of weeks or so. 'Mme. Julia Correvon' responds best if the roots are in a shady spot and the vine itself can grow into the full sun.
| Plant Types: | Perennial, Vine |
| Light: | Partial Shade to Full Sun |
| Height: | 10 feet to 12 feet |
| Width: | 2 feet |
| Zones: | 4a to 9b |
| Bloom Color: | Red |
| Bloom Seasons: | Early summer, Mid summer, Late summer |
| Leaf Color: | Green |
| Special Features: | Deer resistant, Rabbit resistant |
| Shape: | Trailing |
| Fertilizer: | Poultry Manure, Steer Manure, Miracle-Gro® Water Soluble All Purpose Plant Food |
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Clematis is usually propagated through cuttings, but most gardeners will find it much easier to skip this step and directly purchase starter plants. Plant Clematis in the spring at least 18" from any south-facing walls.
For climbing species, make sure to plant the top of the root ball about 3" (8cm) below the soil surface. Provide strong support, and tie in the plants initially before they start to climb on their own.
Clematis includes species of twining leaf-climbers and woody-based herbaceous perennials, found in the N. and S. hemispheres. During the spring they do best in full sun, but do well with partial shade in summer.
It is important to keep the roots and the base of the plant in the shade and never in direct sun.
Climbing species are useful for covering a wall, arbor, trellis, or pergola. They can also be grown over large shrubs or small trees. Herbaceous species work great in a mixed or herbaceous border.
Clematis will bloom abundant flowers in the late spring followed by silvery gray seed heads.
Clematis plants prefer porous soil that is well-drained and slightly acidic. Maintain a pH between 5.8 and 6.5: any higher and the plant is susceptible to yellowing.
Provide plants with a late winter mulch of compost or well-rotted manure, but avoid the crown when doing so.
Fertilize plant in the spring. Use 150 ppm 20-20-20 or 20-15-20 concentrations. Slow release fertilizers are not advised.
Prune Group 3 - Prune lightly above the new leaf buds in early spring and remove any dead or weak stems. Clematis viticella 'Mme. Julia Correvon' flowers on the new season's growth.
Clematis is susceptible to Clematis wilt, aphids, whiteflies, spider mites, thrips, botrytis, and fusarium. Keeping foliage dry will help stave off disease.