What is the difference between rhubarb and burdock?

The mature leaves of Burdock are less curly than rhubarb, and the undersides of the leaves are “wooly” or “hairy”, unlike rhubarb. The stalks of Burdock are hollow, while the stalks of rhubarb are solid. Burdock plants (weeds) can grow to a height of 6 feet, unlike rhubarb plants.Click to see full answer. Then, how can you tell rhubarb?To be honest, rhubarb is “ripe” all spring and summer. But for the health of the plant, there are certain times that you should make your rhubarb harvest. The best time when to harvest rhubarb is when the stalks of the leaves reach at least 10 inches long.Secondly, what happens if you eat wild rhubarb? Sometimes called garden rhubarb and pieplant, wild rhubarb has stalks that are edible and often used in pies; its leaves are not edible. If you live where wild rhubarb is a perennial, then wait until the second or third year after planting it to harvest its stalks. Also Know, what is similar to rhubarb? Common burdock (Arctium minus), also known as wild rhubarb, is easily mistaken for rhubarb. These biennial plants produce large, heart-shaped wavy leaves and tall reddish-colored stalks similar to rhubarb in USDA plant hardiness zones 2 through 10. However, common burdock is not edible.Is all rhubarb safe to eat?Rhubarb is poisonous. Rhubarb contains oxalate, which causes illness or death when large quantities are ingested. Most of rhubarb’s oxalate is in its leaves, so trim them off and discard them, and you’re safe. There is almost no poison in rhubarb stalks.