The Longest Blooming Clematis

Are you looking for a flowering plant that will add color and beauty to your garden throughout the year? If so, then you might want to consider planting a clematis. Clematis is a genus of flowering plants that are known for their beautiful blooms and long-lasting flowers. There are many different species of clematis, and each one has its own unique characteristics. In this blog post, we will take a closer look at the longest blooming clematis varieties, and explore what makes them so special.

What is Clematis?

Clematis is a flowering vine that belongs to the buttercup family. It is native to many parts of the world, including Europe, Asia, and North America. Clematis is a popular plant among gardeners because of its stunning flowers, which come in a wide range of colors and shapes. Some clematis varieties have large, showy flowers that can reach up to 10 inches in diameter, while others have more delicate, bell-shaped blooms.

The Longest Blooming Clematis Varieties

There are several clematis varieties that are known for their long blooming periods. Here are some of the most popular ones:

1. Clematis 'Empress'

This variety of clematis is known for its large, pink flowers that bloom from late spring to early fall. The flowers can reach up to 6 inches in diameter, and they have a pleasant, sweet fragrance.

2. Clematis 'Nelly Moser'

Another popular clematis variety is 'Nelly Moser'. This plant has large, pale pink flowers with a dark pink stripe down the center of each petal. The blooms appear from late spring to early fall.

3. Clematis 'Jackmanii'

'Jackmanii' is a well-known clematis variety that has been popular among gardeners for over 150 years. This plant has deep purple flowers that bloom from midsummer to early fall.

4. Clematis 'Alba Luxurians'

If you prefer white flowers, then you might want to consider 'Alba Luxurians'. This clematis variety has large, white blooms with green centers that appear from early summer to early fall.

Growing and Caring for Clematis

Clematis is a relatively easy plant to grow, but it does require some care and attention to ensure that it thrives. Here are some tips on how to grow and care for clematis:

1. Planting

Clematis should be planted in well-draining soil with plenty of organic matter. They prefer a slightly acidic soil with a pH of around 6.0 to 7.0. When planting clematis, make sure to dig a hole that is twice as wide and deep as the root ball. Add some compost or other organic matter to the soil to help improve drainage and fertility.

2. Watering

Clematis plants need regular watering, especially during hot weather. Make sure to water the plants deeply at least once a week, and more often if the weather is particularly dry.

3. Fertilizing

Clematis plants benefit from regular fertilization. Use a balanced fertilizer that is high in phosphorus, which will promote healthy root growth and flowering.

4. Pruning

Pruning is an important part of caring for clematis plants. Most clematis varieties need to be pruned at least once a year to keep them healthy and promote new growth. The best time to prune clematis depends on the variety, so make sure to research the specific needs of your plant before pruning.

Clematis in Container Gardening

Clematis can also be grown in containers, which makes them a great choice for small gardens or balconies. Here are some tips for growing clematis in containers:

1. Choosing a Container

When choosing a container for your clematis, make sure to pick one that is large enough to accommodate the plant's root system. A container with a diameter of at least 18 inches is recommended.

2. Soil and Fertilizer

Use high-quality potting soil when planting clematis in containers. Make sure to fertilize regularly with a balanced fertilizer.

3. Watering

Container-grown clematis plants need to be watered more frequently than those planted in the ground. Check the soil moisture level every day, and water as needed to keep the soil moist but not waterlogged.

4. Support

Clematis vines need support to grow properly, so make sure to provide a trellis, stake, or other support structure for your container-grown plant.

Clematis Companion Plants

Clematis can be paired with many different companion plants to create a beautiful and harmonious garden. Here are some examples of companion plants that work well with clematis:

1. Roses

Clematis and roses make a classic pairing in the garden. The soft, delicate blooms of clematis provide a lovely contrast to the bold, showy flowers of roses.

2. Hydrangeas

Hydrangeas and clematis are another popular combination. The two plants have similar growing requirements and complement each other nicely.

3. Daylilies

Daylilies and clematis are a great choice for a low-maintenance garden. The two plants require minimal care and bloom at different times, providing color throughout the growing season.

4. Climbing Roses

Climbing roses and clematis can be trained to grow together, creating a stunning display of color and texture. The two plants have similar growing requirements and look beautiful when grown on a trellis or arbor.

Clematis Propagation

Clematis can be propagated by several methods, including seeds, cuttings, and layering. Here are some tips on how to propagate clematis:

1. Seeds

Clematis seeds can be collected from the plant after the flowers have faded. Sow the seeds in moist potting soil, and keep them warm and moist until they germinate.

2. Cuttings

Clematis cuttings can be taken in the spring or summer. Cut a 4-6 inch section of stem with a pair of sharp scissors, and remove the leaves from the bottom half of the stem. Dip the cut end in rooting hormone, and plant the cutting in a pot filled with moist potting soil. Keep the soil moist, and place the pot in a warm, bright location.

3. Layering

Layering is a method of propagation that involves burying a section of the stem underground while it is still attached to the parent plant. The buried section will develop roots and can be cut away from the parent plant once it has established itself.

Frequently Asked Questions

1. How long do clematis flowers last?

The length of time that clematis flowers last depends on the variety. Some clematis varieties have blooms that last for several weeks, while others have flowers that only last for a few days.

2. How often should I fertilize my clematis?

Clematis plants benefit from regular fertilization. Use a balanced fertilizer that is high in phosphorus, and apply it every four to six weeks during the growing season.

3. Can clematis grow in the shade?

Most clematis varieties prefer full sun or partial shade. However, there are some varieties that can tolerate full shade, such as Clematis 'Armandii' and 'Montana'.

4. Do clematis need to be pruned?

Yes, most clematis varieties need to be pruned at least once a year to keep them healthy and promote new growth. The best time to prune clematis depends on the variety, so make sure to research the specific needs of your plant before pruning.

5. Can clematis be grown indoors?

Clematis is typically an outdoor plant and does not do well when grown indoors. However, some gardeners have had success growing clematis in a greenhouse or other enclosed space with plenty of natural light.


Clematis is a beautiful and versatile plant that can add color and beauty to any garden. With so many different varieties to choose from, there is sure to be a clematis that will thrive in your garden. Whether you choose a long blooming variety or a more delicate bloom, clematis is sure to be a showstopper in your garden.