Eazy Gardening

Clematis ‘Ramona’: The Late-Blooming Vine for Elegance and Resilience

Clematis ‘Ramona’ is a beautiful, late large-flowered clematis that adds a touch of elegance to any garden. This stunning flower is known for its showy blooms, which can range from light blue to violet-blue, and it is a favorite of many gardeners.

In this article, we will explore everything you need to know about this lovely plant, from its characteristics and benefits to wildlife, to tips on how to grow and care for it successfully.

Overview of the plant

Common names, vernacular names

Clematis ‘Ramona’ is also known as Clematis ‘Evison’, named after its breeder, Raymond Evison. However, it is commonly referred to as ‘Ramona’ due to the name of its parent plant, Clematis ‘Daniel Deronda’.

This variety of clematis is a hybrid of American and European species.

Description of the plant

Clematis ‘Ramona’ is a deciduous vine that can grow up to 8 to 12 feet tall. Its leaves are dark green and ovate, with a glossy texture, and they can grow up to 6 inches long.

The flowers are large, reaching up to 6 to 8 inches in diameter, and the centers are filled with contrasting yellow stamens. The petals are wide-spaced, giving the bloom a delicate lacy appearance.

This clematis has a slow-growing, bushy habit, and it typically grows as a grade 2 in horticulture terms, meaning it buds on both old and new growth. Characteristics, including appearance, blooming habits, and benefits to wildlife

Clematis ‘Ramona’ is a late bloomer, which means it flowers after most other clematis varieties have finished.

It typically blooms from late June to September, depending on the climate zone. Its showy flowers make it an excellent choice for adding color to late-season gardens.

In addition to its stunning flowers, this clematis is also beneficial to wildlife, attracting pollinators such as butterflies and bees.

Plant cultivation and care

Preferred growing conditions

Clematis ‘Ramona’ requires full sun to partial shade and moist, well-drained soil. It prefers soils with a pH level between 6.0 and 7.0. The plant benefits from a fertile and humus-rich soil that has been amended with compost or manure.

Planting clematis ‘Ramona’ in an area with good air circulation can help prevent fungal disease issues.

Potential pest and disease issues

Clematis ‘Ramona’ is generally healthy, but it can suffer from fungal diseases such as wilt and leaf spots. Good air circulation and proper soil drainage can help prevent these diseases.

Aphids, slugs, and snails may also attack clematis; the use of insecticidal soaps or chemicals may be necessary to control them.

Planting and maintenance tips

Plant clematis ‘Ramona’ in the spring or early fall. The plant should be placed in a hole that is two times wider and deeper than the root ball.

Add compost or manure to the soil and mix thoroughly. After planting, water the plant well and mulch around it with organic mulch, such as bark or leaves.

Clematis ‘Ramona’ requires regular moisture, so ensure that the soil is consistently moist but not waterlogged. Water the plant deeply once a week when rainfall is inadequate.

Fertilize the plant in the spring and summer, using a balanced fertilizer. Clematis ‘Ramona’ needs support to climb; provide a trellis or arbor for the plant to climb on.

To prune, cut the plant back to about 12 inches above the ground in the late winter or early spring. Deadheading is also recommended to encourage blooming.


Clematis ‘Ramona’ is an elegant and showy late large-flowered vine that can bring beauty to any garden. With its ovate, glossy leaves and wide-spaced, lacy petals, this plant is a favorite of many gardeners.

It attracts pollinators and is generally easy to care for as long as the soil is moist and well-drained. With proper planting, watering, fertilizing, and pruning techniques, your Clematis ‘Ramona’ can thrive and bring joy to your garden for years to come.

3) Plant propagation methods, including sexual and asexual reproduction

Clematis ‘Ramona’ can be propagated through both sexual and asexual methods. Sexual reproduction involves the use of seeds, while asexual reproduction involves using vegetative parts of the plant, such as stem cuttings.

Both methods have their advantages and disadvantages, so gardeners can choose the one that suits their needs. Sexual reproduction is the process of producing offspring through the exchange of genetic material between a male and female gamete.

In the case of clematis ‘Ramona’, the male gamete is contained in the pollen, and the female gamete is in the ovule. To produce new plants from seeds, the pollen from one plant must be transferred to the stigma of another plant.

This can occur naturally through pollinators such as bees or hummingbirds, or it can be done manually by gardeners. To collect seeds from clematis ‘Ramona’, allow the flowers to mature and develop seeds.

The seeds should be collected when the seed heads turn brown and dry, usually in the fall. Collect the seeds and store them in a cool, dry place until ready to plant.

When planting, cover the seeds with a thin layer of soil, and keep them moist until they germinate. It can take several weeks or even a few months for the seeds to germinate, so patience is key when using this method.

Asexual reproduction involves the use of vegetative parts of the plant, such as stem cuttings, to produce new plants. This method is advantageous because it produces offspring that are genetically identical to the parent plant, meaning they will have the same characteristics and traits.

This is useful for maintaining a specific cultivar of clematis ‘Ramona’. To propagate the plant asexually, take stem cuttings of about 4 to 6 inches long from healthy plants.

Remove the lower leaves and dip the cut end in rooting hormone. Plant the cutting in a mixture of perlite and peat moss, and keep the soil moist until roots form.

Both methods of propagation have their benefits and limitations. While sexual reproduction produces genetic diversity, asexual reproduction can maintain the genetic integrity of a specific cultivar.

Gardeners can choose the method that best suits their needs and resources.

4) Plant adaptations to different environments

Clematis ‘Ramona’ is native to North America and Europe and has adapted to a range of environments, from woodlands to meadows. Its adaptations enable it to survive and thrive in different conditions.

One adaptation of clematis ‘Ramona’ is its ability to climb. This is achieved through its leaf petioles, which wrap around support structures such as trellises, fences, and trees.

This allows the plant to access more sunlight, which is important for photosynthesis, the process by which plants produce food. Another adaptation of clematis ‘Ramona’ is its root system.

The plant has a fibrous root system that enables it to absorb water and nutrients efficiently. This is particularly important in dry environments where water is scarce.

Clematis ‘Ramona’ is also able to grow in a range of soil types, from sandy to clayey, which allows it to survive in different environments. Clematis ‘Ramona’ has also adapted to different light conditions.

The plant prefers full sun to partial shade, although it can tolerate some shade. In woodland environments, the plant may grow in the partial shade of trees, while in meadows it prefers full sun.

Clematis ‘Ramona’ is also pollinated by insects, which is an adaptation to its environment. The plant produces flowers that are attractive to bees and butterflies, which are important pollinators.

This helps to ensure that the plant can reproduce and continue to thrive in its environment. In conclusion, clematis ‘Ramona’ has adapted to a variety of environments and has a range of adaptations that enable it to survive and thrive.

Its ability to climb, absorb water and nutrients, and tolerate different light and soil conditions, among other adaptations, make it a versatile and resilient plant. Gardeners can enjoy growing and propagating this beautiful vine, knowing that it is well-suited to different environments.

5) Usage of the plant in indoor setting

Clematis ‘Ramona’ is a popular outdoor plant, but it can also be grown indoors under the right conditions. Indoor clematis ‘Ramona’ can add a touch of elegance and color to any indoor space.

However, it is important to note that growing this plant indoors is challenging and requires extra care to thrive. To grow clematis ‘Ramona’ indoors, it is crucial to provide it with the optimal growing conditions.

The plant needs bright, indirect light, so placing it near a south or west-facing window that receives at least six hours of sunlight daily would be ideal. It is also important to ensure that the temperature is between 60 and 70F and the humidity is around 50%, which can be achieved by using a humidifier or misting the plant regularly.

For planting, choose a pot that is slightly larger than the root ball, allowing the plant room to grow, but not too much space to prevent overwatering. Fill the pot with a high-quality potting mix, preferably one composed of peat moss, perlite, and vermiculite.

When watering, allow the soil to dry slightly between waterings. Overwatering can lead to root rot and other fungal diseases.

Indoor clematis ‘Ramona’ may also require more frequent fertilization than outdoor plants. A balanced, water-soluble fertilizer can be applied every two weeks during the growing season.

Additionally, pruning is essential to promote bushy and vigorous growth in indoor clematis plants. Overall, growing clematis ‘Ramona’ indoors can be challenging but rewarding.

With proper care, the plant can thrive indoors, adding color and beauty to any home.

6) Usage of the plant in outdoor setting

Clematis ‘Ramona’ is a popular outdoor plant and is a great choice for adding color, beauty, and elegance to any outdoor space. This vine is ideal for growing on trellises, arbors, or fences, where it can climb and flower freely.

It adds a touch of charm and can be used in various outdoor settings, including gardens, landscapes, and hardscapes. In garden settings, clematis ‘Ramona’ can be planted along with other flowering plants like roses, daisies, or coneflowers to add a vertical element.

It can also be used to dress up arbors, pergolas, and archways, creating a welcoming entrance to the garden. In landscape design settings, clematis ‘Ramona’ can be used to create structure and height.

For instance, the plant can be used to add privacy by training it to grow up a fence or trellis, providing cover and shelter for outdoor spaces. It can also create a stunning backdrop in mixed plant borders.

Clematis ‘Ramona’ can also be used in hardscapes, such as patios, courtyards, and sidewalks. It can be trained to grow on pillars, walls, or other structures, giving the outdoor space a touch of elegance and natural beauty.

Aside from its aesthetic value, clematis ‘Ramona’ also benefits wildlife such as butterflies and bees, providing them with nectar and pollen. Its ability to climb also offers shelter for birds, making it a valuable addition to any outdoor space.

In conclusion, clematis ‘Ramona’ is a versatile and stunning vine that can be used in various outdoor settings. It adds beauty, color, elegance, and structure to any garden, landscape, or hardscape.

With its ability to attract pollinators and provide shelter for birds, it is a beneficial addition to any outdoor space. 7) Toxicity of the plant to pets and horses, humans

While clematis ‘Ramona’ is a beautiful and popular plant, it is important to be aware of its potential toxicity to pets, horses, and humans.

The plant contains several compounds that can cause mild to severe symptoms when ingested or touched. Ingestion of clematis ‘Ramona’ can cause gastrointestinal upset, including vomiting, diarrhea, and loss of appetite in pets and horses.

Humans may experience nausea, vomiting, and diarrhea as well. More severe symptoms may include tremors, seizures, difficulty breathing, and coma, but these are rare.

The sap of clematis ‘Ramona’ can also cause skin irritation in both pets and humans. Coming into contact with the sap can result in itching, redness, and even blisters in some cases.

It is important to handle the plant with care and wash the affected area thoroughly and immediately. If a pet or horse ingests any part of clematis ‘Ramona,’ seek veterinary attention immediately.

Ingestion of the plant can be fatal in some cases. For humans, remove any affected clothing and wash the affected area thoroughly with soap and water or contact a healthcare professional for advice.

It is important to note that not all clematis varieties are toxic; some are safe for pets and humans. Before introducing any new plant into a home or garden, it is essential to research its potential toxicity and safety implications.

Additionally, keep potentially toxic plants out of reach of children and pets to avoid accidental ingestion or contact. In conclusion, while clematis ‘Ramona’ is a beautiful and popular plant, it does have the potential to be toxic to pets, horses, and humans.

It is essential to handle the plant carefully and keep it out of reach of pets and children. If ingestion or contact occurs, seek veterinary or medical attention immediately.

In conclusion, clematis ‘Ramona’ is a stunning and versatile plant that can add beauty and elegance to any indoor or outdoor space. While it requires specific growing conditions and care, the plant’s many adaptations enable it to thrive in various environments.

However, it is essential to be aware of the plant’s potential toxicity to pets, horses, and humans. By following proper care guidelines and taking necessary precautions, gardeners can enjoy growing clematis ‘Ramona’ with confidence.

Here are some common FAQs:

1. Can clematis ‘Ramona’ be grown indoors?

Yes, it is possible to grow clematis ‘Ramona’ indoors, but it requires bright, indirect light, appropriate temperature and humidity, and proper watering and fertilizing techniques. 2.

How do you propagate clematis ‘Ramona’? Clematis ‘Ramona’ can be propagated through sexual reproduction (using seeds) or asexual reproduction (using stem cuttings).

3. Is clematis ‘Ramona’ toxic to pets and humans?

Yes, clematis ‘Ramona’ is toxic to pets and humans if ingested or contacted with the sap. It is important to handle the plant with care and keep it out of reach of pets and children.

4. What is the best time to plant clematis ‘Ramona’?

Clematis ‘Ramona’ can be planted in spring or fall, depending on the climate zone. 5.

How often should clematis ‘Ramona’ be watered? Clematis ‘Ramona’ should be watered deeply once weekly when rainfall is inadequate, and the soil should be consistently moist but not waterlogged.

By addressing these FAQs, gardeners can gain knowledge on the appropriate care techniques and precautions necessary to successfully grow and enjoy this gorgeous plant.

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