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Anemopsis Californicum Aquatic Pond Plant - Yerba Mansa

Aquatic Plants
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Delivery Time: Delivered within 2-4 working days. 6.99 for Unlimited Plants

Anemopsis californicum, commonly known as Yerba Mansa, is a perennial herbaceous plant native to wetland areas of California and northern Mexico. It is valued for its unique appearance, aromatic leaves, and medicinal properties.

Here's a detailed description and care guide for Anemopsis californicum:

Anemopsis californicum is a clump-forming herb that typically grows to a height of 12-24 inches (30-60 cm) with a spread of 12-18 inches (30-45 cm). It features large, leathery, lance-shaped leaves that arise from a basal rosette. The leaves have a glossy texture and are often aromatic, emitting a pleasant fragrance when crushed. The plant produces dense, cylindrical spikes of small, white flowers with yellow centers. The flowers are surrounded by showy white bracts that resemble petals, giving the appearance of a long-lasting flower display.

Care Guide:

Lighting: Anemopsis californicum thrives in full sun to partial shade. It prefers at least 4-6 hours of direct sunlight each day for optimal growth and flowering. However, it can tolerate some shade, particularly during the hottest part of the day.

Water: Anemopsis californicum is a water-loving plant and requires consistently moist soil or growing conditions. It naturally grows in marshes, wetlands, or along the edges of streams or ponds. Ensure that the soil or planting medium remains consistently moist, but avoid waterlogging or allowing the plant to sit in standing water for extended periods.

Soil: Anemopsis californicum prefers fertile, loamy soil that is rich in organic matter. It can tolerate a range of soil types, including sandy or clay soils, as long as they retain moisture. Ensure good drainage to prevent waterlogging, but maintain sufficient moisture to meet the plant's water requirements.

Temperature: Anemopsis californicum is native to mild to warm climates and is hardy in USDA hardiness zones 7-10. It prefers moderate temperatures and may struggle in regions with extremely hot or dry conditions. Providing some shade during the hottest part of the day can help protect the plant from heat stress.

Fertilization: Anemopsis californicum generally does not require heavy fertilization. However, you can provide a balanced, slow-release fertilizer in spring to promote healthy growth. Follow the manufacturer's instructions for application rates. Avoid excessive fertilization, as it may lead to excessive foliage growth rather than flower production.

Maintenance: Anemopsis californicum is a relatively low-maintenance plant. Regularly remove any dead or damaged leaves to maintain its appearance. After flowering, you can trim back the spent flower stalks to promote fresh growth. If the plant becomes overcrowded, divide the clumps every few years in early spring to rejuvenate growth and prevent overcrowding.

Propagation: Anemopsis californicum can be propagated through division or by collecting and sowing its seeds. Division is best done in early spring when new growth emerges. Carefully separate the clumps and replant them in suitable soil or planting medium. Seeds can be collected from mature flower spikes and sown in containers or directly in the garden.

Pests and Diseases: Anemopsis californicum is generally resistant to pests and diseases. However, it may occasionally attract aphids or be susceptible to root rot if the soil is overly saturated. Monitor the plant regularly for signs of pests or diseases and take appropriate measures if necessary.

By following these care guidelines, you can enjoy the unique appearance and aromatic foliage of Anemopsis californicum in your garden. Adjust the care routine based on your specific growing conditions and monitor the plant for any signs of stress, pests, or diseases. With proper care, Anemopsis californicum can provide an attractive and aromatic addition to water gardens, bog gardens, or moist areas of the landscape.

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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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