Seashore Mallow

(Kosteletzkya pentacarpos)

Seashore Mallow (Kosteletzkya pentacarpos)

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Estimated Native Range
Species Map Help

Summary

Kosteletzkya pentacarpos, commonly known as the Seashore Mallow, is a perennial herb native to coastal marshes, tidal flats, and estuarine shores of the southeastern United States. It is a halophyte, meaning it thrives in salty environments where few other plants can survive. This species typically grows to a height of over 1 meter, with leaves measuring 6–14 cm in length. The plant’s stems and leaves are covered with fine hairs. Its flowers, which bloom from July to October, are 5–8 cm across and feature five petals that range in color from pale to deep pink, encircling a central tube formed by the fused stamens and style. The flowers are quite showy and attract pollinators such as bees and butterflies.

Seashore Mallow is valued for its ability to grow in saline conditions, making it an excellent choice for coastal restoration projects and for gardeners dealing with salty soils. It is also used in ornamental plantings for its attractive blooms and as a natural solution for erosion control in vulnerable coastal areas. This plant prefers full sun exposure and can tolerate medium to high water levels, especially in well-drained soils. While it is not commonly found in cultivation, it can be a unique addition to water-wise gardens or naturalized areas.CC BY-SA 4.0

Plant Description

  • Plant Type: Subshrub, Herb
  • Height: 3-4 feet
  • Width: 2-3 feet
  • Growth Rate: Moderate
  • Flower Color: Pink
  • Flowering Season: Summer, Fall
  • Leaf Retention: Deciduous

Growth Requirements

  • Sun: Full Sun
  • Water: Medium, High
  • Drainage: Fast

Common Uses

Bird Garden, Butterfly Garden, Deer Resistant, Edible*Disclaimer: Easyscape's listed plant edibility is for informational use. Always verify the safety and proper identification of any plant before consumption., Hummingbird Garden, Low Maintenance, Salt Tolerant, Showy Flowers, Water Garden

Natural Habitat

Coastal marshes, tidal flats, and estuarine shores

Other Names

Common Names: Virginia Saltmarsh-Mallow, Seashore-Mallow

Scientific Names: , Kosteletzkya virginica, Kosteletzkya pentacarpos, Kosteletzkya pentacarpa, Hibiscus pentacarpos, Kosteletzkya virginica var. althaeifolia, Hibiscus boscai, Kosteletzkya pentacarpos var. smilacifolia, Kosteletzkya althaeifolia, Kosteletzkya altheifolia

GBIF Accepted Name: Kosteletzkya pentacarpos (L.) Ledeb.