Can I grow this in a pot?

Yes, it grows quite well in containers as long as you keep the soil consistently moist.

Yes, it is a hardy perennial that will return year after year.

Plant guide

Red-veined dock.

Rumex sanguineus

Pronounced ROO-mex san-GWIN-ee-us

Also known as Blood Dock, Blood Sorrel, Redvein dock, Wood Dock, bloodwort dock, bloody dock, red-veined dock

Wood Dock — Photo by Verena Fisch (CC BY) via iNaturalist

This striking perennial is loved for its deep red veins that pop against bright green leaves. It adds a lovely splash of color to damp garden spots or containers. You'll find it's quite hardy and brings a unique texture to any plant collection.

Another photo of Red-veined dock — Photo by Zo Clark (CC BY) via iNaturalist

At a glance

Care level: Easy
Plant type: Perennial herb
Light: Partial shade to full sun
Indoor light: Bright indirect
Water: Every 2 to 4 days
Mature size: 1 to 2 feet
Growth rate: Medium
Hardiness: USDA 5 to 9
Bloom time: Early to mid summer

Care

Keep the soil consistently moist because this plant loves water. Watch for wilting leaves as a sign that it needs a drink. Trim back any yellowing or damaged foliage to keep the plant looking tidy.

Watering: Ensure the soil stays damp to the touch at all times.
Feeding: Use a balanced liquid fertilizer during the active growing season.
Pruning: Remove old or damaged leaves to encourage fresh growth.
Repotting: Repot when the roots begin to crowd the container.
Soil: Moist, fertile, well draining soil
Soil pH: 5.5 to 7.0
Temperature: -29 to 30°C
Humidity: 40 to 70%
Drought tolerance: Low
Lifespan: Perennial, typically 3 to 5 years.
Deer and rabbits: Moderate

Signs it needs repotting

Roots growing out of the drainage holes.
Stunted growth during the active season.
Soil drying out much faster than usual.

Safety

People: The plant is generally safe to eat but contains oxalates that can be harmful in very large quantities.
Pets: This plant contains oxalates which can be harmful if ingested by cats or dogs.
Children: No specific risks for children, though the leaves should be washed before eating.
Contact allergens: Handling the leaves rarely causes skin irritation in sensitive individuals.
Airborne allergens: The wind dispersed pollen may cause mild hay fever symptoms in some people.
Edibility: Leaves contain oxalic acid, so consume in moderation especially if you have kidney stones or gout.

How to identify it

Bright red leaf veins
Long lance shaped leaves
Basal rosette growth habit
Small greenish flower spikes

Height: 0.3 to 0.6m
Spread: 0.3 to 0.45m
Leaves: green, red, semi-evergreen
Flowers: green, red, 0.5 to 1cm
Fruit: brown, Late summer

Problems to watch for

Rust · Small orange spots appear on the undersides of leaves during humid weather.
Aphids · Small insects that cluster on new growth and suck plant sap.

By symptom

Plant problems by symptom

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Growing it

Propagation: seed, division
When to plant: spring, autumn
Overwintering: In colder climates, the foliage may die back to the ground. Simply clear away the dead leaves in early spring to make room for new growth.
In containers: It grows beautifully in containers at least 25 centimeters deep, provided you keep the soil damp.

Seed

1. Sow seeds in pots in early spring.
2. Keep the soil moist and in a bright location.
3. Transplant seedlings once they have two sets of true leaves.

Division

1. Carefully dig up a mature clump in spring.
2. Gently pull the root mass apart into smaller sections.
3. Replant the divisions immediately in moist soil.

Pair this with other moisture loving shade plants to create a lush, low maintenance woodland border.

Grows well with

Hosta · They share similar moisture requirements and create a lovely foliage contrast.
Ferns · Ferns thrive in the same shady, damp conditions as blood dock.

Similar species

Garden Sorrel · A related species also grown for its edible, tangy leaves.

Science

Family: Polygonaceae
Genus: Rumex
Order: Caryophyllales
Class: Magnoliopsida
Native range: Europe, North Africa, and Western Asia.
Conservation: This plant is common and not of conservation concern.

It naturally grows in damp woodlands and along stream banks where it can access constant moisture.

Value to wildlife: larval host plant, nectar source
Pollinators: bees, butterflies
Uses: ornamental foliage, culinary salad green, container plant

Through the year

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Flowering

Fruiting

Foliage

Ecological indicators

Salinity: 2/9
Soil reaction: 5/9
Light: 5/9
Temperature: 5/9
Moisture: 7/9
Nutrients: 6/9

Taxonomy resolved against GBIF.

Questions people ask

Can I grow this in a pot?: Yes, it grows quite well in containers as long as you keep the soil consistently moist.
Is it a perennial?: Yes, it is a hardy perennial that will return year after year.

Where the name comes from

The genus name Rumex is the ancient Latin name for sorrel, while sanguineus refers to the blood red color of the leaf veins.

Good to know

It is often called blood dock because of its deep red veins.
The leaves are best harvested when young for the mildest flavor.
It thrives in damp soil where other plants might struggle.

Also in

Plants toxic to cats and dogs

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This guide was generated with AI on October 19, 2026 and checked against GBIF taxonomy. It is general information, not horticultural or veterinary advice. Read about how we build these guides.