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Ranunculus Acris Flore Pleno Aquatic Pond Plant - Double Buttercup

Aquatic Plants
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Ranunculus acris 'Flore Pleno', commonly known as Double Buttercup or Bachelor's Button, is a perennial plant that belongs to the Ranunculaceae family. It is a cultivar of the native Ranunculus acris and is valued for its double-flowered form. Here's a detailed description and care guide for Ranunculus acris 'Flore Pleno':

Ranunculus acris 'Flore Pleno' is a clump-forming perennial that grows to a height of about 2-3 feet (60-90 cm) and spreads to a similar width. It features attractive, deeply divided dark green foliage. The flowers are the main highlight of this cultivar. They are double and resemble pom-poms or rosettes. The flowers can vary in color, ranging from bright yellow to orange-yellow. They are produced on erect stems and bloom in late spring to early summer.

Care Guide:

Lighting: Ranunculus acris 'Flore Pleno' prefers full sun to partial shade. It requires at least 4-6 hours of direct sunlight per day for optimal growth and flowering. However, it can tolerate some shade, especially in regions with hot summers.

Water: This plant prefers consistently moist soil. It grows naturally in moist meadows and wetland areas. If growing in a garden, provide regular watering to keep the soil consistently moist. Avoid allowing the soil to dry out completely, but also ensure good drainage to prevent waterlogged conditions.

Soil: Double Buttercup prefers fertile, well-draining soil. It can tolerate a range of soil types, including loam and clay, but it performs best in soil that is rich in organic matter. Ensure good soil drainage to prevent waterlogging and root rot.

Temperature: Ranunculus acris 'Flore Pleno' is hardy in USDA hardiness zones 3-7. It can tolerate cold temperatures and freezing winters. In regions with hot summers, providing some afternoon shade can help protect the plant from excessive heat stress.

Maintenance: This plant is relatively low-maintenance. Deadhead the spent flowers to encourage continuous blooming and to prevent self-seeding. After the flowering period, the foliage may die back. You can remove the dead foliage to maintain a tidy appearance. Ranunculus acris 'Flore Pleno' may spread through self-seeding, so monitor and control its growth if necessary.

Wildlife Attraction: The double flowers of this cultivar are less attractive to pollinators compared to the single-flowered species. However, they still provide nectar and can attract some bees and butterflies to the garden.

Pests and Diseases: Double Buttercup is generally resistant to most pests and diseases. However, it may occasionally attract aphids or slugs. Monitor the plant for any signs of pest infestation and take appropriate measures if necessary.

By following these care guidelines, you can successfully grow Ranunculus acris 'Flore Pleno' in suitable garden settings. Adjust the care routine based on your specific growing conditions and monitor the plant for any signs of stress or unwanted spreading. With its vibrant double flowers, this cultivar adds a touch of charm and color to borders, meadows, or cottage-style gardens.

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Here are some general tips and care guidelines for marginal pond plants:


Research different species of marginal pond plants to find ones that suit your pond's conditions and your aesthetic preferences. Consider factors such as height, flower colour, foliage texture, and seasonal interest when selecting plants.


Observe the natural conditions of your pond, such as sun exposure, soil type, and water movement, and choose plants that are adapted to those conditions. Create different planting zones around the pond, with plants that prefer wet soil closer to the water's edge and those that tolerate drier soil further away.


Marginal plants typically thrive in full sun to partial shade. Some species can tolerate more shade, but for optimal growth and flowering, provide them with at least 6 hours of direct sunlight per day.

Water Depth:

Determine the water depth requirements of the marginal plants you choose. Some plants prefer water up to 6 inches deep, while others can tolerate water up to 12 inches or more. Ensure that the water level remains consistent within the preferred range for the chosen plants.


Marginal plants prefer a rich, loamy soil that retains moisture but is not waterlogged. Amend the soil with organic matter, such as compost or well-rotted manure, to improve its fertility and drainage. Avoid using heavy clay soil, as it can become compacted and restrict root growth.


Dig a hole slightly larger than the root ball of the plant and loosen the soil at the bottom. Place the plant in the hole, ensuring that the crown is level with or slightly above the soil surface. Backfill the hole with soil and gently firm it around the plant to eliminate air pockets. Water thoroughly after planting to settle the soil and provide initial hydration.


Apply a layer of organic mulch around the base of the plants to suppress weeds, conserve moisture, and regulate soil temperature.Use materials like straw, shredded bark, or compost, and maintain a depth of 2-3 inches.


Marginal plants prefer consistently moist soil but should not be waterlogged. Monitor the moisture level regularly and water as needed to keep the soil evenly moist. During hot and dry periods, provide supplemental watering to prevent the soil from drying out.


Marginal plants generally do not require heavy fertilization if the soil is nutrient-rich. However, if growth appears weak or leaves show signs of nutrient deficiencies, apply a balanced slow-release fertilizer according to the manufacturer's instructions.


Remove any yellowing or dead leaves to maintain plant health and appearance. Divide overcrowded plants every few years to prevent competition for resources and promote vigorous growth. Prune back excessive growth to maintain a tidy appearance and to prevent plants from encroaching on other plants or the pond itself.

Winter Care:

Hardy marginal plants can withstand winter temperatures and require minimal care. Cut back dead foliage in late fall or early spring to tidy up the planting area. In colder regions, consider protecting tender plants with a layer of mulch or covering them with burlap during winter to prevent frost damage.

Monitoring and Troubleshooting:

Regularly inspect plants for signs of pests, diseases, or nutrient deficiencies. Address any issues promptly with appropriate treatments, such as organic insecticides, fungicides, or nutrient amendments. By following these detailed tips and providing proper care, you can create a beautiful and thriving planting zone around your pond, enhancing its visual appeal and supporting a diverse ecosystem.

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