Bloody Dock (Red-Veined Sorrel)

Direct sow in spring

Sow seed directly into the ground in spring once the soil can be worked. Plants form a tightly packed basal rosette about a foot tall and spread steadily from there, so give them room. Bloody dock is a cool-season perennial that establishes its basal rosette in spring while soil is moist and temperatures are mild, which is also when the leaves are at their most tender and least bitter.

One feeding a year, in spring

Fertilize once annually in spring as growth resumes. This plant is not a heavy feeder and needs nothing further through the season. Bloody dock is grown for a continuous flush of young leaves, and a single spring feeding as the rosette rebuilds carries it through the year without pushing the soft growth that invites rust and mildew.

Divide the clumps in early spring

Lift and divide established clumps by root division in early spring. This is the simplest way to make more plants and to keep an aging clump vigorous. The plant is a clump-forming perennial that spreads continuously, and division renews a crowded center while giving you new plants without letting it flower and self-seed.

Clear last year's foliage before new leaves emerge

In spring, before the new leaves push up, cut away and remove the old tattered foliage from the previous season. This is one of only two jobs the plant genuinely asks for in a year. The crown regrows from the center each spring, and old collapsed foliage sitting on it holds moisture against the new growth and hides the slugs that will graze the first tender leaves.

⚠ The foliage can irritate the skin of sensitive individuals, so wear gloves if you are prone to contact dermatitis.

Cut the flower spikes as they rise

As soon as the tall flower stalks appear, cut them out at the base. If you do let a plant flower and set seed, cut it back hard afterward to rejuvenate it. The inflorescence is not ornamental and pulls the plant's energy into seed instead of leaf. Removing it forces bushier basal growth and keeps the leaves coming, and it stops the self-seeding that lets this plant turn weedy and escape the bed.

⚠ The foliage can irritate the skin of sensitive individuals, so wear gloves if you are prone to contact dermatitis.

Watch for slugs on the new leaves, plus rust and mildew

Check the new spring growth for slug damage, along with rust and powdery mildew on the foliage. Lay a board or moistened newspaper as a trap and clear it each morning, water early in the day so leaves and soil dry out, and space plants for air movement. If you need a bait, iron phosphate is the one to use. Slugs shelter in damp cover overnight and graze the tender young leaves that are the entire point of this crop, and the moist soil bloody dock prefers is exactly the condition that keeps them and the foliar fungi active.

⚠ Use iron phosphate bait, which is labeled for use around edible crops and poses no special hazard to dogs. Do not use metaldehyde here, its label does not allow direct application among vegetables and edible crops, and it is attractive and potentially hazardous to dogs.

Pick the young leaves and keep picking

Take the young, tender leaves for salads and let the plant keep producing. Young leaves are good raw or cooked. Older leaves turn bitter and tough, so pick them small rather than waiting for size. Leaf quality falls off sharply with age in this species — older leaves go bitter and tough — so the harvest window on any given leaf is short and repeated picking of small leaves is what keeps the crop worth eating.

⚠ Contains oxalic acid in the leaves and stems. Poison severity is rated low, but it may cause mild stomach upset and oxalic acid binds nutrients if ingested in quantity, so eat it as a garnish or salad component rather than a bulk green. Foliage causes contact dermatitis in sensitive individuals.