Willow dock (Rumex salicifolius)

Willow dock

Willow dock (Rumex salicifolius) is a perennial herb in the knotweed family. It grows across the western United States in wetland or other moist areas and has been introduced in Europe as well. Its scientific name means “sorrel with willow-like leaves.”

Scientific classification

Species

Willow dock (Rumex salicifolius)

Pinks, cacti, and allies

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Toxic to Pets

Toxicity

Herb

Plant Type

Spring, Summer, Fall

Bloom Time

30 cm to 1.02 m

Plant Height

60 cm to 1.5 m

Spread

10 cm to 20 cm

Flower Size

Yellow, Green, Red, Brown

Flower Color

Deciduous

Leaf type

Images of Willow dock

Distribution of Willow dock

Distribution Map

Willow dock is a plant with its origins in the temperate regions of North America. It has spread to cover various parts of this continent, inhabiting environments that match its native climate and ecological conditions. Its proliferation is primarily concentrated in areas that mimic its original habitat, although it hasn't been widely recorded as introduced beyond its natural range.

Native

Cultivated

Invasive

Introduced

No species reported

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Habitat

Coastal dunes, sandy shores, marshes

Hemisphere Trend Curve

Northern

Sorthern

Care Guide for Willow dock

Every week

Water

Full sun

Sunlight

20 - 35 ℃

Ideal Temperature

Water: Willow dock thrives in moist environments, requiring consistent moisture and weekly watering to mimic its native habitat. With a high tolerance for waterlogged soils, its outdoor cultivation should consider seasonal rainfall patterns that affect growth cycles and watering practices.

Fertilize: Fertilizing willow dock with high-nitrogen and balanced fertilizers promotes growth, with monthly applications in spring/summer and bi-monthly in fall. Use half the recommended dose to avoid overload. Annual spring compost top-dressing boosts fertility, while avoiding foliage contact prevents burns. Moderation is essential to prevent excessive leaf growth.

Pruning: Willow dock thrives with early to late spring pruning, promoting new growth and overall health. Focus on removing dead stems and thinning crowded areas for better air circulation. Regular pruning also prevents disease, controls size, and enhances appearance, ensuring a flourishing plant in the growing season.

Propagation: Willow dock is a perennial thriving in riparian zones. Propagation is achieved through division; separate the root ball and transplant sections into moist soil without overplanting. Provide adequate spacing, maintain consistent moisture, and control weeds for successful establishment.

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