Ranunculus Lingua Grandiflorus Aquatic Pond Plant - Greater Spearwort

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Ranunculus lingua, also known as Greater Spearwort, is a perennial plant native to Europe and parts of Asia. It is a member of the Ranunculaceae family. It typically grows to a height of about 2-3 feet (60-90 cm) and forms clumps of basal leaves. The leaves are glossy, lance-shaped, and deeply lobed. The flowers are large, bright yellow, and have a distinctive buttercup-like appearance. They are produced on tall stems and bloom in late spring to early summer.

Care Guide:

Lighting: Ranunculus lingua prefers full sun to partial shade. It can tolerate some shade, especially in regions with hot summers, but it will flower best in a location with at least 4-6 hours of direct sunlight per day.

Water: This plant prefers consistently moist soil. It grows naturally in wetland habitats, including stream banks and damp meadows. If growing in a garden, provide regular watering to keep the soil moist but not waterlogged. Avoid allowing the soil to dry out completely.

Soil: Greater Spearwort prefers fertile, moist soil that is rich in organic matter. It can tolerate a range of soil types, including clay, loam, and sandy soil. Ensure good soil drainage to prevent waterlogged conditions.

Temperature: Ranunculus lingua is hardy in USDA hardiness zones 5-9. It can tolerate a wide range of temperatures, but it prefers cool to moderate climates. 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. Greater Spearwort may spread through self-seeding, so monitor and control its growth if necessary.

Wildlife Attraction: The bright yellow flowers of Greater Spearwort are attractive to pollinators such as bees and butterflies. They provide a valuable nectar source and can enhance biodiversity in the garden.

Pests and Diseases: Ranunculus lingua is generally resistant to most pests and diseases. However, keep an eye out for aphids or slugs, which can occasionally infest the plant. If necessary, take appropriate measures to control these pests.

By following these care guidelines, you can successfully grow Ranunculus lingua 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 bright yellow flowers and ability to tolerate moist conditions, Greater Spearwort can add beauty and interest to wetland gardens, bog gardens, or naturalized areas.

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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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