Clematis many of you have these in your garden....

purple star clematis

snow queen clematis

sunset clematis

     Here is another c perennial.....clematis.
Purple Star  4-5" vivid violet flowers with a distinctive white stripe center, gives a star effect to Clematis Venosa Violacea. Blooms in July to September.
Gracefully meandering over fences, trellises or through shrubbery, Clematis supply vertical interest. Every perennial garden should have at least one of these incredible
Type:
Vines, Perennials 
Height:
Vine 8-9' 
Spacing:
Plant 4' apart 
Bloom Time:
Mid-Summer to Early Fall 
Sun-Shade:
Full Sun to Mostly Sunny 
Zones:  4-10  
Soil Condition:  Normal 
Flower:  Purple 
Accent:  White 
Features to Note   Beneficial for Pollinators
 Attracts Butterflies
 Blooms for 4 Weeks or More
Clematis General Information
Clematis are prized for their incredible flowers, most as large as your hand. "Queen of the Climbers" will train onto trellises, fences or arch over doorways. Stunning when used alone or when several colors are mixed. Grower's tip: Truest colors require full sun, as any shade will introduce purple tones. Flower color and bloom size may vary while the plant is establishing.  They don't tell you to make sure that the roots stay cool when you plant clematis.  They go in the full sun, but put mulch, or another plant around it's feet to keep the roots cooler.  Rule of thumb with pruning is interesting. 
 
Clematis Plant Care
Pruning Type 3 - This group blooms later and from new growth. These should be pruned in February or March as new leaf buds begin to show low on the plant. Also remove all dead material above the buds and clean out any old or mildewed foliage at this time. If intertwining Clematis, pruning will be easier if you select varieties with the same pruning type.
This is article taken from https://www.bluestoneperennials.com/CLVV.html
Snow Queen
Common Name: clematis    
Type: Vine
Family: Ranunculaceae
Zone: 4 to 8
Height: 7.00 to 10.00 feet
Spread: 3.00 to 6.00 feet
Bloom Time: May to June
Bloom Description: White/mauve with red anthers
Sun: Full sun to part shade
Water: Medium
Maintenance: Low
Flower: Showy
Tolerate: Deer, Black Walnut
Garden locations
Culture
 
Grow in fertile, medium moisture, well-drained soils in full sun to part shade. Vining hybrids are best sited in locations where the flowering parts of the vine are in sun to part shade but the roots are shaded. Some light afternoon shade is usually beneficial in hot and humid summer climates such as the St. Louis area. Clematis vines need a trellis or other support on which to grow. Roots should be kept cool, shaded and uniformly moist. Root areas may be shaded with perennials, annuals or small shrubs. A thick root mulch is appreciated. Do not allow soils to dry out.
 
'Snow Queen' is pruned as Group 2. See pruning instructions below.
 
 
Noteworthy Characteristics
 
Clematis is a genus of over 250 species, most of which are woody to semi-woody deciduous vines climbing by twining leaf stalks or in some cases trailing over support, but in a few cases grow as freestanding or sprawling herbaceous perennials and small deciduous or evergreen shrubs. Most have flat, cupped or bell-shaped flowers. Some plants feature ornamental fluffy seed heads in autumn. Plants bear opposite, simple to compound leaves which are usually deciduous but sometimes evergreen. Compound leaves range from lobed to trifoliate to biternate to pinnate to bipinnate. Clematis is native to both the Northern and Southern Hemispheres including Europe, the Himalayas, China, Australasia, North America and Central America.
 
Plants are often divided into three groups based on pruning needs.
 
Group 1 – Flowers only on old wood (previous year). Prune after spring flowering.
Group 2 – Flowers on both old and new wood. Typically, little pruning should be done for woody-stemmed members of this Group. If cut to the ground or pruned in fall or spring, flowering will be reduced or delayed but not prevented.
Group 3 – Flowers only on new wood. Can be cut to the ground in fall or spring.
 
Genus name comes from the Greek word klematis which is an old name applied to climbing plants.
 
'Snow Queen' features profuse, showy, overlapping, 6-7" diameter, white-sepaled flowers with pink-flushed margins and deep red anthers cover this vine in summer. Bloom on this cultivar comes primarily from the previous year's stems in late spring to early summer, but also occurs in a second flush later in the summer on the new (current year's) growth.
Problems
No serious insect or disease problems. Susceptible to wilt/stem rot (can be fatal), powdery mildew, leaf spots, rust and viruses. Potential insect pests include aphids, vine weevils, slugs/snails, scale and earwigs. Watch for spider mites.
Garden Uses
Clematis can be trained to climb a wall, trellis, fence, arbor, porch, lamppost or other stationary structure. They provides good architectural height and framework for small gardens. They can also be planted to sprawl over and through shrubs, scramble over old stumps or simply as a ground cover in conjunction with other flowering perennials. Containers.
taken from
http://www.missouribotanicalgarden.org/PlantFinder/PlantFinderDetails
picture is from this site also
 
Sunset is a delightful clematis to grow containered on your patio or deck. The compact plant produces a profusion of blooms in shades of soft red, accented by a buttery center. Grow ‘Sunset’ with clematis Reiman and Sano-no-Murasaki for a combination that makes you think of glistening gemstones. HEIGHT | 6-8 FT. SPACING | 24-36
Interesting to put into a container if it grows only 6 feet....might have to try that. 
taken from http://clematis.com/?s=sunset
till next time this is  Becky Litterer, Becky's Greenhouse, Dougherty Iowa beckmall@netins.net