Rumex sanguineus, known as red-veined dock or bloody dock, forms a rosette of oblong green leaves with striking dark red to purple veins. The red-veined form is mostly seen in gardens; the wild native plant usually has green veins.

Red-veined dock at a glance

Botanical name Rumex sanguineus
Common name Red-veined dock, bloody dock
Plant type Short-lived perennial grown for its leaves
Height and spread About 50 cm–1 m tall in flower, up to 50 cm wide
Flowers Tiny, green turning red, June to August; not showy
Position Full sun or part shade
Soil Moist but not waterlogged
Pond depth None – moist soil, not under water
Hardiness RHS H6 – hardy in a very cold winter (-20 to -15°C)
Native to UK and Ireland (the wild plant is mostly a green-veined form)

Is red-veined dock a pond plant?

No. It is a moist border plant, not a water plant. Grow it in moist but not waterlogged soil around the pond or at the edge of a bog garden, never under water.

How to plant and care for it

Plant in spring. Cut off the flower stems after flowering to stop it self-seeding. Watch for slugs and aphids.

Is it poisonous?

It is harmful if eaten in large amounts, including by pets, because it contains oxalates. Wear gloves when handling it.

Which size should I buy?

Bare-root plants (7 cm, 9 cm, 1 litre and 3 litre) arrive without a pot or compost and are the most economical way to plant a group. Potted plants (9 cm, 1 litre and 3 litre) arrive growing in our peat-free compost and give a faster display. Packs of 3 come in 7 cm, 9 cm, 1 litre and 3 litre bare-root sizes and cost less per plant. The 2x Pot & Compost option is two plants supplied with pots and compost.

Pond depth: 0cm

Light: Full sun or part shade

Hardiness: Hardy

Height and spread: 40 - 80cm tall, 30 - 50cm wide

Planting and flowering months are shown in the calendar under the photos.

Bare root (7 cm, 9 cm, 1 litre, 3 litre): plants sent without a pot or compost, ready to plant straight away. The most economical way to plant a group.

Potted (9 cm, 1 litre, 3 litre): plants growing in our recycled, peat-free compost made in Lincolnshire. Larger sizes give a faster display.

Pack of 3 (7 cm bare-root, 9 cm bare-root, 1 litre bare-root, 3 litre bare-root): three plants of the chosen size at a lower price per plant.

2x Pot & Compost: two plants supplied with pots and compost.

Sizes shown with a line through them are currently unavailable.

At Lincs Plants, we strive to provide fast and reliable shipping to ensure your plants arrive in perfect condition. We offer 1-3 day shipping through a variety of dispatch methods to suit your needs.

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