great water dock · Soil

great water dock · Rumex hydrolapathum
Also known as: horse sorrel; water dock

Grows best in moist soil or shallow water, avoiding acidic soils. Self-seeds freely and also spreads from the roots so can be difficult to control or eradicate. See the advice page on controlling sheep's sorrel for more details

Watering: Moderate regular watering, allowing brief slight drying between soakingsSunlight: Full sun · Partial shadeHarmful if eaten in large amounts. Wear gloves and other protective equipment when handling