Clematis Varieties I

Blue-Purple Clematis Flowers with Creamy White Stamens

Blue-Purple Clematis Flowers with Creamy White Stamens

What are Clematis Varieties?

Clematis varieties are classified as tender vine or evergreen and pruning group of plants. Apart from vine or climbing clematis varieties, bush varieties also exist. The flowering plants can beautify gardens in beautiful colors and are available in diverse colors, forms and complexity.

Due to their varying bloom sites, clematis varieties are pruned based on class. Furthermore, vine and bush varieties require different support during growth. Therefore, gardeners should know their plants and specific varieties in their gardens to accord them the right support.

Classes of Clematis Varieties

The class of clematis varieties determines the kind of care specific plants require. Whereas class 1 clematis varieties bloom off mature wood, class 2 varieties bloom off mature and new wood, flowering two times in a single season. On the other hand, class 3 clematis varieties bloom off budding wood.

Knowledge of the right class ensures clematis varieties are pruned at the right time. Otherwise, the wood flowers bloom off might be cut off before the flowering season. Trimming a minimum of two vines can help determine the class of plants whose class is unknown.

Forms of Clematis Varieties

Climbing clematis vines are popular among gardeners. Bush clematis varieties grow upright as shrubs up to 3 feet based on species. They include Tube, the Mongolian Snowflakes and Fremont's clematis. Rock or trailing clematis has vines that crawl on the surface of soil, creating appealing soil cover.

Trailing clematis varieties include the Mongolian Gold, Ground and Sugarbowl. Some climbing clematis varieties are not just easy to grow, but also attractive. For instance, C. macropetala has beautiful blue flowers that grow up to 5 inches wide. On the other hand, Bees Jubilee feature mauve blooms.

Magenta C. viticella 'Grandiflora Sanguinea' and Crimson Ville de Lyon make landscapes more vibrant.

Pink-Purple Clematis Flowers

Pink-Purple Clematis Flowers

Evergreen Clematis Varieties

Just like deciduous plants, evergreen clematis varieties require cultural care. The persistent, arrow-shaped leaves are glossy and vibrant, creating accents and vibrant shields. The plants bloom in early spring towards the end of winter. The plants do well in temperate climates. It is among the first vines to produce flowers.

A good example is Armand's clematis varieties with white blooms and a great scent. The plant belongs to the class or group 1 clematis varieties. Climbing clematis vines require support and training.

Yellowing of Clematis Leaves

Clematis varieties are tolerant of various conditions upon maturity. However, insufficient nutrients in soil and infestation of pests can cause the leaves to yellow. Diseases such as mites, weather, pests and poor cultivation conditions such as site, soil and drainage, and lighting can cause clematis leaves to yellow.

Clematis varieties for full sun require at least six hours of full sun to bloom while clematis varieties for shade are protected at the base or mulched to prevent loss of moisture. They thrive in well-drained, fertilized soils with compost to improve nutrients, drainage and flow of air.

Magnesium and iron deficiency causes yellowing of clematis leaves. The latter increases soil pH while the former is fixed using a mixture of one gallon of water and a teaspoon of Epsom salts. The mixture is applied once a week to give the leaves back their green color.

How Long Clematis Varieties Take to Bloom

Clematis varieties are perennial vines that brightly bloom in cascades of colors for many years. Different varieties bloom at different times and for varied duration. Depending on the variety, clematis flowering plants can bloom in spring, autumn, summer or across different seasons.

Clematis montana 'rubens' Flowers

Clematis montana 'Rubens' Flower
Jolly Janner, Clematis montana "rubens" flower, marked as public domain, more details on Wikimedia Commons

Clematis varieties can also bloom in two different seasons or periods. USDA zone, sunlight and the quality of soil can affect a variety's bloom time.

Fall Flowering Clematis and Summer Blooming Clematis Varieties

  • Recta
  • Crispa
  • Integrifolia
  • Tangutica
  • X durandii
  • Terniflora
  • Orientalis
  • Heracleifolia
  • Viticella
  • Texensis

Spring Blooming Clematis Varieties

  • Armandii
  • Montana
  • Alpina
  • Macropetala
  • Cirrhosa

Hybrid Clematis Varieties Continuously Blooming in Fall through Summer

  • Ville de Lyon
  • Gypsy Queen
  • Star of India
  • Red Cardinal
  • Jackmanii
  • Allanah
  • Polish Spirit
  • Comtesse de Bouchard

Overlapping clematis varieties or including one of the hybrids in a garden ensures extended bloom periods. Grow summer-, spring- and fall-flowering clematis varieties for continuous bloom across various seasons.

Fall Blooming Clematis Varieties

Late blooming clematis varieties can bring life back to gardens when they begin to dull in late summer. Autumn clematis varieties begin flowering in mid-summer to late summer until the start of frost.

Types of Clematis Varieties Blooming in Autumn

Avante Garde - Burgundy with pink flowers; flowers in late summer and blooms in autumn.

Alba Luxurians - Vigorous climber grows up to 12 feet in height. It has grayish-green leaves and white flowers with hints of lavender and green tips.

Daniel Deronda - Flowers in early and late summer through fall. It is a purple clematis variety with star-shaped flowers.

Duchess of Albany - Flowers in summer and blooms in fall. It has pink flowers with dark purple stripes. The flowers resemble tulips.

Madame Julia Correvon - Ranges from bright red to bright pink flowers with four petals. It is a late blooming clematis variety that begins flowering in summer into fall.

Silver Moon - It has yellow stamens, contrasting the silvery, pale lavender flowers that bloom from summer into autumn.

The President - It is a blue clematis variety with deep, blue-purple flowers. It begins flowers in late spring to early summer, blooming in autumn. It is one of the longest blooming clematis varieties with a beautiful textured look in other seasons.

Summer Blooming Clematis Varieties

Clematis is a showy and versatile vine. The shape and size of flowers vary from cultivar to cultivar. A combination of spring, winter and summer clematis varieties in the same garden can ensure it blooms all-year round.

Although spring blooming clematis varieties are the most common, interesting varieties in flower and vine cascades can ensure a garden blooms into fall. Summer varieties can bloom in June and July or into autumn. They can either be non-vining or vining types of clematis. Despite being colorful, each has a distinct growth habit

  • Non-Vining Summer Clematis

The bushy yet compact nature of non-vining clematis plants that bloom in summer makes them ideal for perennial or container gardens. Tube clematis (funnel-shaped blue flowers), solitary clematis (large, lavender flowers) and Mongolian Gold (cold and drought tolerant; deep yellow flowers) are non-vining summer varieties.

  • Vining Summer Clematis Varieties

Vining clematis varieties climb and thus need support. They include Durand (lavender blue flowers), Elsa Spath (bigger flowers), Sweet Autumn, Jackmani, and Henryi.

Other Summer Clematis Varieties

  • Blooms in summer and requires hard pruning - Jackmani, Gypsy Queen, Rouge Cardinal and Mrs. Cholmondeley. Prune selectively and lightly.
  • Requires light pruning -Niobe, Ville de Lyon and Madame Edouard Andree
  • No pruning - Ramona; blue flowers. Flowers grow up to 8cm wide.

Spring Blooming Clematis Varieties

Native to Siberia and China, the plants can withstand extreme climates. They are easy to grow, but tough. Spring varieties do well in USDA hardiness zone 3 and start flowering in mid spring, blooming towards the end of winter. Silvery seed heads with fluffy texture beautifies in other months such as autumn.

Cold resistant clematis varieties include:

  • Clematis Macropetala/Downy Clematis

Clematis macropetala plants have feathery leaves and several bell-shaped, ornate double flowers looking-like freely tutu of a dancer. They include Jan Linkmark (purple blooming clematis variety), 'White Wings' or White Swan (creamy-white, double flowers), Maidenwell Hall (blue-lavender flowers) and Markham's Pink (pink semi-double flowers.

  • Clematis Alpina/Austrian Clematis

The deciduous plant has pale-green, lacy leaves. The flowers are creamy and bell-shaped with white stamens. Frances Rivis, Pamela Jackman and Frankie are sky blue, blue and pale blue. Ruby (rose-pink), Constance (reddish pink) and Willy (pale pink with white) produce pink flowers. Burford White has white flowers.

Herbaceous, Erect Clematis Plant Varieties

Stanleyi, Hook. (C. Stanleyana, Hort.). It is an erect, robust herb that grows up to 3 feet high. Leaves biternate; lofts. The leaves are sessile or petioled, variable in size, cuneate, and silky. Flowers grow between 1 to 3 inches across. White to pink-purple petals; sepals widely expand; stamens yellow; styles become plumose, and white.

The plant blooms from July to Oct. The plant is suitable for greenhouse culture; in the northern states it is apt to winter kill if left unprotected.

Cearulea, Lindl. (C. patens, Morr. & Decne; C. azaurea, Hort.). The plant is taller and more slender. The lofts are smaller and narrower than C. lanuginosa. Flowers spreading; sepals about 8, rather narrow, delicate lilac and stamens purple. Spring Isle of Nippon Japan should be grown on a northern exposure to preserve the color of the flowers. It is almost as prolific as C. Ianuginosa in producing garden varieties and hybrids, and it is the most likely of all to produce double-flowered forms.

Var. grandiflora, Hook (C. azurea0. azarm, var. grandi/lbra, Hort.). Flowers are larger than the type. 

Var. Standishi, Moore (C. Standishi, Hort.). Flowers about 5 inches across; sepals light purple, of metallic luster. It is a fine variety from Japanese gardens.

Clematis Apple Blossom

Other Clematis Garden Varieties

Mrs. James Baker (C. Mrs. James Baker, Hort.). Sepals
nearly white, ribbed with dark carmine.

Miss Bateman, Noble (C. Miss Bateman, Hort). Flowers are more compact than the type, 6 inches across. Sepals are ovate, shortly acuminate, pure white with cream-colored burs; anthers brown. It is probably of hybrid origin; allied to the variety Standishi.

Stella, Jackman (C. Stella. Hort.). Flowers are not as large as the last; sepals deep mauve, with a red bar down the center of each.

Amalia, Siebold (C. Amalia. Hort.). Sepals are 6 or more, oblong lanceolate and light lilac. It is sourced from Japanese gardens.

Lord Lanesborough, Noble (C. Lord Lanesborongh, Hort.). Sepals are bluish lilac, each with a metallic purple bar. It is a good variety to gradually force to blossom in the greenhouse by March.

Lady Lanesborough. Noble (C. Lady Lanesborough, Hort.). Sepals are silver-gray and the bar lighter colored. It blossoms in March in the greenhouse.

Marie, Simon—Louis (C. Marie. Hort.). Flowers are darker than the type.

The Queen, Jackman (C. The Queen, Hort.). Flowers rather compact, the sepals broader than the type.

John Murray, Jackman (C. John Murray. Hort.). Habit and
foliage are bolder than the type. Flowers bloom somewhat later.

Fair Rosamond, Jackman (C. Fair Rosamond, Hort.). Sepals are apiculate, broader than the type and of the same color.

Countess of Lovelace, Jackman (C. Countess of Lovelace, Hort.). Flowers are double, blue-violet and sepals much imbricated. In the second crop of blooms, the flowers are single, as is often the case in other double varieties.

Albert Victor, Noble (C. Albert Victor, Hort.). Flowers much like the type, but large and more compact. The plant is suitable for forcing under glass.

Duchess of Edinburgh, Jackman (C. Duchess of Edinburgh, Hort.). Flowers are double, white and strongly imbricated.

Louis van Houttz, Hort. (C. Louis van Houtte, Hort.). It has semi double, rosy white petals.

Vesta. Endlicher (C. Vesta, Hort.). Sepals gray, anthers red. 

Helena. Siebold (C. Hslena, Hort.). Flowers are pure white, with yellow stamens. 

Monatrosa, Van Houtte (C. monstrosa. Hort.).
It has double, pure white flowers.

Sophia. Siebold (C. Sophia, Hort.). Sepals are deep lilac-purple on the edges, with light green bars.

Clematis Plants Care and Cultivation

Clematis varieties are the most attractive and popular flowering vines for home gardens. They can be deciduous, woody, evergreen or herbaceous. Although most varieties bloom from early spring to fall, varieties vary in color, form and flowering seasons. However, growth requirements for most plants are similar.

Clematis vines require at least 6 hours of sunshine and cool, moist soils for the roots. Two inches thick mulch or a cover crop can help keep the soil cool and moist. Most clematis varieties use fences or trellis for vine growth support. However, larger varieties grow up to 12 feet tall and thus require arbors for support.

Smaller vine varieties grow up to 5 feet tall; they can use poles as vine support systems. The vines are planted in early spring or fall depending on variety and climatic region. They can be planted in gardens or containers. The vines do well in rich, well-drained soils and require proper spacing for sufficient air flow between plants.

Holes should be dug at least 2 feet deep and soil mixed with compost. Before planting, the vines are pruned to minimize shock while enhancing adaptation to the new growth environment. The plants are watered weekly and mulch replaced every spring.

Control diseases such as powdery mildew and clematis wilt, and pests such as spider mites and aphids. Prune clematis based on variety to promote growth and flowering while enhancing the plant's attractiveness. Large-flowering clematis varieties flower in mid spring; prune them in early spring or late winter and cut only the buds at the top.

Prune the early-spring-blooming clematis varieties prior to July but after the plants flower. The plants bud on the growth from the last season. On the other hand, prune late-blooming varieties in early spring or late winter; only cut the buds at the top. Use winter bags to overwinter clematis varieties in winter; it involves deadheading clematis and plant protection from freeze-thaw-freeze cycles.

Grow Clematis Vines in Pots/Containers at Home

Unlike vines grown in gardens on the ground, potted clematis plants need more care and attention. Potted clematis plant varieties include the Polish Spirit (blue-purple flowers), Nelly Mosser (purplish-pink flowers), Sieboldii (purple-creamy-white flowers; dwarf varieties) and The President with red flowers.

Grow clematis plants in large fabric pots, especially for winter when clay or ceramic pots tend to crack. Water the potted plants as recommended or as need be.

Are you looking to overwinter your clematis garden or potted clematis plant varieties? Do you need to add clematis varieties to your garden or begin growing them at home?

We have large grow pots that can accommodate your clematis plants and their rooting systems for year-after-year blooming seasons.