United States Edition

Clematis

Clematis

Clematis is part of the Clematis genus. Its scientific name is Clematis.

There are over 200 species of clematis; most of them are deciduous vines, but a few are freestanding or sprawling and nontwining. Among the herbaceous clematis are C. integrifolia varieties, which range from just over a foot tall to over 6 feet tall and can be fragrant, and the heracleifolia, which are strongly upright shrubs to 4 feet tall. The large-flowered hybrids are perhaps the best-known.

There are clematis that bloom in early spring, summer, late fall, or some combination of those times.

Common wisdom is that clematis likes ‘its head in the sun and feet in the shade.’ In reality, companion plants will generally provide as much shade as is needed, and many varieties will grow and flower quite well with moderate amounts of sun.

They are typically divided into three groups based on bloom time, and consequentially, how they should be pruned to avoid cutting of the flowers:

  • Group 1 – blooms early in the season on the previous year’s growth. Prune immediately after flowering to keep from cutting off next year’s buds.
  • Group 2 – bloom once in spring, then again in fall, or intermittently through the summer on old growth. Try to avoid pruning except for removing dead wood.
  • Group 3 – bloom in the summer or autumn on new wood. Prune while dormant in the fall or winter. These can be cut to the ground in the winter if they are looking scraggly, and it will not affect the next season’s bloom.

This plant is toxic to pets. 1

Clematis grows as a perennial and is a flower / ornamental. Being a perennial plant, it tends to grow best over several years (approx 3 years and greater). Clematis is known for its vine habit and growing to a height of approximately 2.44 metres (7.93 feet). Try planting Clematis if you'd like to attract bees to your garden. Popular varieties of Clematis with home gardeners are Jackmanii, The President, Nelly Moser, Multi Blue and Ville de Lyon.

China is thought to be the country of origin for Clematis.

Clematis is normally fairly low maintenance and is normally quite easy to grow, as long as a level of basic care is provided throughout the year. Being aware of the basic soil, sun and water preferences will result in a happier and healthier plant.

This plant info is provided by the myfolia gardener's wiki. All details about Clematis have been kindly provided by our members.

How to grow Clematis

  • Full Sun

    +
  • High

For climbers, provide a sturdy support that the tiny stems can curl around.

Nearly all clematis like rich, loose, fast-draining soil with generous quantities of organic matter; add lime only if there’s a deficiency. They are forgiving of most soil types. Clematis are heavy feeders and don’t like to dry out or be constantly wet.

Don’t fertilize when the plant is about to bloom, as this can shorten the bloom period.

Clematis do well with companion plants that won’t crowd their roots underground; these provide shade over the root zone and act as mulch. Rocks used as mulch can cause baking in the sun.

Zone recommendations can vary with species/varieties. Remember that clematis in pots are less hardy than clematis in the ground.

Water requirements vary with species, but most like well draining soil with plenty of water.

Plant in a location that enjoys full sun and remember to water often. As a rough idea of the types of climates Clematis does best in, check to see if your local area is within USDA Hardiness Zones 4 and 11. Keep in mind when planting that Clematis is thought of as hardy, so this plant will survive close to or on freezing temperatures.

Growing Clematis from seed

Look to ensure a distance 1.49 feet (45.7 cm) between Clematis seeds when sowing to make sure your seedlings have enough space.

Transplanting Clematis

Head in the sun, feet in the shade. Mulch well after planting. It also helps to plant a ground cover around the base of a clematis to keep it cool.

Ensure that temperatures are mild and all chance of frost has passed before planting out, as Clematis is a hardy plant.

Companion plants for Clematis

These plants have been known to grow well alongside Clematis so consider planting:

Repellent plants for Clematis

These plants will not grow well with Clematis so avoid planting these within close proximity:

Common Clematis problems

These problems, diseases and pests are known to affect Clematis plants:

Chlorosis (low iron) is indicated when leave have green veins but are otherwise yellow. Trace mineral fertilizer supplements can be used for this.

Magnesium shortage is indicated by entire leaf, including newest growth, being yellow. Use a drench of Epsom salts for this.

Clematis wilt is a fungus; it doesn’t affect the crown or roots, so you can remove all the top growth and burn it or bag it and dispose of it with garbage (not safe for composting), then water and fertilize your plant to help it recover.

Powdery mildew also occurs; fungicides can be used as preventatives for plants that tend to get this. Pruning the affected foliage, then fertilizing and watering help the plant recover. Make sure your plant has an area of good air circulation and doesn’t have overhead watering that may leave it damp.

Other names for Clematis

Misspellings: Ruutez, Clemetis

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Clematis care instructions

How long does Clematis take to grow?

These estimates for how long Clematis takes to sprout, grow and harvest are from real observations from real gardeners, right around the world. Start logging and journaling your observations to participate!

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