Zantedeschia Aethiopica Crowborough Aquatic Pond Plant - Arum Lily

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Zantedeschia aethiopica 'Crowborough,' also known as Arum Lily or Calla Lily, is a herbaceous perennial plant that belongs to the Araceae family. It is native to southern Africa and is widely cultivated for its beautiful white flowers and attractive foliage. Here's a detailed description and care guide for Zantedeschia aethiopica 'Crowborough':

Zantedeschia aethiopica 'Crowborough' forms clumps of large, glossy, arrow-shaped leaves that grow from rhizomes. The leaves are usually deep green in color and have prominent veins. The plant produces tall flower stalks, called spathes, that bear a single, large white flower with a yellow spadix in the center. The spathe is usually trumpet-shaped and can reach up to 15-30 cm (6-12 inches) in length. The flowers bloom in late spring or early summer and last for several weeks. They are followed by the development of red or orange berries.

Care Guide:

Light: Zantedeschia aethiopica 'Crowborough' prefers bright, indirect light or partial shade. Avoid exposing the plant to direct sunlight, especially during the hottest part of the day, as it can scorch the leaves. Place the plant in a location with filtered sunlight or dappled shade for best results.

Water: Keep the soil consistently moist but not waterlogged. Arum Lilies prefer moist soil and will suffer if the soil becomes too dry. Water regularly, especially during periods of hot, dry weather. Avoid overwatering, as this can lead to root rot. Ensure good drainage to prevent waterlogged conditions.

Soil: Provide well-draining, rich, and fertile soil for Zantedeschia aethiopica 'Crowborough.' It thrives in loamy or sandy soil that retains moisture while allowing excess water to drain away. If growing in containers, use a well-draining potting mix that is rich in organic matter.

Temperature: This plant is hardy in USDA hardiness zones 8-10. It prefers moderate temperatures and does well in a range of climates. In colder regions, it can be grown as a container plant and brought indoors during winter or treated as an annual. Protect the plant from frost and extreme temperature fluctuations.

Fertilizer: Apply a balanced, water-soluble fertilizer every 2-3 weeks during the growing season to promote healthy growth and blooming. Follow the manufacturer's instructions for proper dosage and application. Avoid overfertilization, as it can lead to excessive foliage growth with fewer flowers.

Maintenance: Remove any spent flowers or yellowing foliage to maintain a tidy appearance. After the flowering season, allow the plant to go dormant naturally. Reduce watering and stop fertilizing during the dormant period. In spring, as new growth emerges, resume regular care and watering.

Propagation: Zantedeschia aethiopica 'Crowborough' can be propagated through division or from seeds. Divide the rhizomes in early spring or fall, ensuring that each division has a few healthy shoots and roots. Sow seeds in well-draining soil and keep them consistently moist until germination occurs.

Pests and Diseases: Arum Lilies are generally resistant to pests and diseases. However, they can occasionally be affected by aphids, slugs, or snails. Monitor the plant regularly and take appropriate measures to control pests if necessary.

Zantedeschia aethiopica 'Crowborough' is a stunning plant that adds elegance and beauty to gardens and containers. Its large white flowers and lush foliage make it a popular choice for both indoor and outdoor settings. By following these care guidelines, you can successfully grow Zantedeschia aethiopica 'Crowborough' and enjoy its striking blooms and attractive foliage.

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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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