Eazy Gardening

Superbells Blue: The Versatile Plant for Indoor and Outdoor Gardens

If you are looking for a plant that brings in more than visuals, Calibrachoa ‘Superbells Blue’ might just be your next favorite plant. Commonly known as Million Bells or Superbells, it is a versatile plant that is perfect for container gardens, hanging baskets, or garden beds.

This plant is known for its small and dainty foliage, which produces abundant blooms in blue shades. Read on to learn more about the plant and how to properly care for it.

Overview of the Plant:

Calibrachoa ‘Superbells Blue’ is a part of the Solanaceae family and is native to South America. It is a hybrid plant developed from a cross between two other species of Calibrachoa.

The plant averages a height of 6-12 inches and a width of 12-24 inches. Its blooms are small and bell-shaped, which is where the plant gets its nickname ‘Million Bells.’ This plant is an annual, meaning it only lasts for one growing season.


Calibrachoa ‘Superbells Blue’ is a prolific bloomer, producing a large number of blooms each growing season. The plant’s blooms are blue in color and showcase a yellow center.

They appear in spring and continue to bloom throughout the growing season until fall arrives. The plant’s dainty foliage is lush and green, which makes it an attractive addition to any garden or landscape.

Aside from being pretty, Calibrachoa ‘Superbells Blue’ is also beneficial to wildlife. The plant attracts pollinators such as bees, butterflies, and hummingbirds.

Its small and compact habit also makes it the perfect choice for small-space gardens, balconies, and patios. Plant Cultivation and Care:

Calibrachoa ‘Superbells Blue’ is an easy plant to care for, even for novice gardeners.

Proper care will ensure that the plant thrives and produces beautiful blooms throughout the growing season. Preferred Growing Conditions:

This plant thrives in sunny locations, preferably 6-8 hours of direct sunlight daily.

It prefers well-draining soil, with a pH level of 6.0-6.5. The plant requires consistent moisture but does not do well in soggy soil. Overwatering can lead to root rot and other plant stressors.

Potential Pest and Disease Issues:

Despite being easy to care for, Calibrachoa ‘Superbells Blue’ is still susceptible to pest and disease issues. Whiteflies and spider mites are common pests that can infest the plant.

To prevent infestation, regular monitoring of the plant and prompt treatment or prevention is necessary. Powdery mildew, botrytis, and phytophthora are common diseases that this plant can contract.

Proper sanitation measures, such as removing plant debris or diseased areas, can help prevent the spread of disease throughout the plant. Planting and Maintenance Tips:

Calibrachoa ‘Superbells Blue’ can be planted in containers or garden beds.

In containers, a well-draining potting mix is recommended. In garden beds, proper soil preparation that provides excellent drainage is essential.

When planting, ensure that the plant is spaced at least 12 inches apart to allow for proper air circulation. Regular deadheading of spent blooms will encourage the plant to continue blooming throughout the season.


Calibrachoa ‘Superbells Blue’ is a versatile plant that can be enjoyed in various garden settings. Gardeners and landscapers will appreciate its dainty foliage and non-stop blooms, while pollinators will enjoy the abundant nectar produced by its blooms.

The plant is easy to care for, but proper growing conditions and maintenance are necessary to keep it thriving and healthy. Overall, Calibrachoa ‘Superbells Blue’ is an excellent choice for anyone looking for a low-maintenance plant that delivers exceptional results.

Plant Propagation Methods:

Calibrachoa ‘Superbells Blue’ can be propagated through sexual and asexual reproduction. Sexual reproduction involves the use of seed, while asexual reproduction involves the use of vegetative cuttings.

Seed propagation:

Calibrachoa seeds are small and require light to germinate. It is best to start seeds indoors 6 to 8 weeks before the last expected frost.

Simply sprinkle the seeds on top of moist seed-starter mix and press them lightly into the soil. Cover the container with plastic wrap and place it under a grow light or in a bright, warm location.

Seedlings should emerge in 10 to 21 days. Once seedlings have sprouted and have several leaves, they can be transplanted into individual containers.

Keep seedlings well-watered and fertilize them regularly. Asexual propagation:

Asexual propagation of Calibrachoa ‘Superbells Blue’ is usually done through stem cuttings.

Cuttings should be taken from healthy, mature plants and should consist of a stem with at least two nodes. The cuttings should be 3-4 inches long and should be taken from the tips of the plant.

Remove any leaves from the bottom half of the cutting and dip the cut end into rooting hormone. Plant the cutting into a container filled with moist soil.

Cover the container with plastic wrap and place it in a bright, warm location, such as near a window or under a grow light. Within a few weeks, roots should have formed and new growth should be visible.

Transplant the new plant into a larger container as it grows. Plant Adaptations to Different Environments:

Calibrachoa ‘Superbells Blue’, like all plants, has adapted to survive in its given environment.

Understanding the plant’s adaptations can help gardeners better care for this plant in different settings. Drought Adaptations:

Calibrachoa ‘Superbells Blue’, has adapted certain traits to survive in dry environments.

The plant has a deep root system, which allows it to access water that is stored deep within the soil. The small size of its leaves helps to reduce transpiration and water loss.

However, despite its drought adaptations, Calibrachoa ‘Superbells Blue’ still requires regular watering during periods of extended dry weather. Heat Adaptations:

Calibrachoa ‘Superbells Blue’ is a heat-tolerant plant that can survive in hot and humid environments.

Its small, thin leaves help to reduce water loss through transpiration and keep the plant cooler. The plant’s flowers are also adapted to hotter environments, as they are capable of self-pollination, which reduces the plant’s reliance on pollinators.

However, while the plant can tolerate heat, it still requires regular watering during hot and dry conditions. Properly watering the plant during these times helps to keep it healthy and thriving.

Cold Adaptations:

Calibrachoa ‘Superbells Blue’ is not frost-tolerant and is only hardy in USDA planting zones 9-11. In colder climates, the plant can be grown as an annual or over-wintered indoors.

During the winter months, the plant should be kept in a cool, bright location and should only be watered when the soil has dried out. Overall, understanding the adaptations of Calibrachoa ‘Superbells Blue’ can help gardeners make informed decisions about how to care for this plant in different environments.

Whether it is drought, heat, or cold, proper care ensures that the plant remains healthy and vibrant throughout the growing season. Calibrachoa ‘Superbells Blue’ is a versatile plant that can be enjoyed indoors or outdoors.

Its compact size, abundant blooms, and low-maintenance requirements make it an excellent choice for any gardener or plant enthusiast. Usage of the plant in Indoor Settings:

Calibrachoa ‘Superbells Blue’ can be enjoyed indoors in bright and sunny locations.

It can be grown in containers, hanging baskets, or as a tabletop arrangement. When grown indoors, the plant should be placed in a location that receives at least 6-8 hours of bright, direct sunlight.

Supplemental light may be required if the plant does not receive enough natural sunlight. The plant’s small size and non-invasive root system make it an easy-to-grow choice for indoor gardens.

It can be grown alone or paired with other plants to create a colorful and vibrant display. When growing Superbells indoors, make sure to pot the plant in well-draining soil to prevent over-watering and root rot.

Usage of the plant in Outdoor Settings:

Calibrachoa ‘Superbells Blue’ is best grown in outdoor settings where it can receive proper air circulation and direct exposure to sunlight. It is ideal for use in garden beds, borders, hanging baskets, or as a container plant.

When grown outdoors, the plant should be placed in a location that receives at least 6-8 hours of direct sunlight daily. Superbells can be planted in larger containers to create a more dramatic display in outdoor areas such as patios, decks, or balconies.

The plants can also be used as groundcovers to add color to pathways or walkways. Outdoor-grown Superbells should be fed regularly, preferably every two weeks, with a balanced fertilizer to promote blooming and healthy growth.

When the plant stops blooming or begins to look sickly, it is a sign that fertilizer or a change in growing conditions is necessary. Whether grown indoors or outdoors, Superbells require proper care and attention to thrive and produce abundant blooms throughout the growing season.

When growing Calibrachoa ‘Superbells Blue,’ it is essential to choose the ideal growing conditions that are accommodating and will allow for healthy growth. Conclusion:

The Calibrachoa ‘Superbells Blue’ plant is a versatile, low-maintenance plant that is well-suited for use in indoor and outdoor settings.

Its small size, abundant blooms, and adaptations make it an excellent choice for novice and experienced gardeners alike. Whether it’s planted in containers, garden beds, or hanging baskets, the plant’s aesthetic benefits are undeniable, adding a unique appeal to any decor.

With proper care and attention, the plant can thrive and produce beautiful blooms throughout the growing season. Although Calibrachoa ‘Superbells Blue’ is a non-toxic plant, it is still essential to be mindful of the safety of pets and horses that may inadvertently consume the plant.

While the plant is safe for humans, the ingestion of the plant by pets and horses can result in mild to moderate gastroenteritis. The ingestion of large quantities of the plant can also cause oral irritation, vomiting, and diarrhea in pets and horses.

If your pet consumes a large quantity of the plant, it is recommended that you seek professional veterinary attention. To prevent accidental ingestion, gardeners should keep the plant out of reach from pets and horses, either through proper location placement or by using barriers.

It is also a good idea to supervise pets and horses when they are in or around the garden, especially if they have a history of consuming plants. Additionally, gardeners should be mindful of other toxic plants that may grow in the same area.

Plants such as Oleander, Azalea, and Foxglove are toxic to both humans and pets and should not be grown in the same garden as Calibrachoa ‘Superbells Blue.’

In summary, Calibrachoa ‘Superbells Blue’ is a non-toxic plant that can be safely grown around humans. However, gardeners should be mindful of the potential danger posed to pets and horses that may accidentally consume the plant.

Proper location placement and monitoring of pets and horses in the garden can help to prevent accidental ingestion. In summary, Calibrachoa “Superbells Blue” is a versatile and attractive plant that is easy to care for both indoors and outdoors.

Its drought, heat, and cold adaptations make it an excellent choice for gardeners in various climates. While the plant is not toxic to humans, pet owners should take precautions to prevent accidental ingestion by pets and horses.

Overall, Calibrachoa “Superbells Blue” is an excellent choice for gardeners and plant enthusiasts who want to add a splash of color and vibrancy to their garden or home.



Is Calibrachoa ‘Superbells Blue’ a perennial or an annual plant? It is an annual plant that lasts for one growing season.

2. Does it require full sun or partial shade?

It prefers full sun (6-8 hours of direct sunlight). 3.

How often should I water my Superbells? It requires consistent moisture but does not do well in soggy soil.

Water only when the top inch of soil is dry. 4.

Can I grow Calibrachoa ‘Superbells Blue’ indoors? Yes, it can be grown in bright, sunny indoor locations.

5. Is Calibrachoa ‘Superbells Blue’ safe for pets and horses?

While it is non-toxic to humans, it can cause mild to moderate gastroenteritis in pets and horses if ingested in large amounts, so it is recommended to keep them from consuming it. 6.

Can I propagate Superbells? Yes, it can be done through sexual (seed propagation) and asexual (vegetative cuttings) methods.

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