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Rhubarb’s Story
Ellen shares her research and experiences with rhubarb, that unusual but loved garden vegetable.
A deep red stalk is more popular among consumers, but often has poor growth and yield. Green varieties are often much more productive. People often assume red stemmed rhubarb is sweeter than other colors but color and sweetness are not necessarily related. The Victoria variety, which is probably the greenest variety, often produce some very sweet stems.
It is interesting to note that the Victoria variety, also known as Large Victoria is easily raised from seed, but for best flavor pull after one years growth and replant next year. It has juicy, medium sized greenish to red leaf stalks, is a heavy producer and is excellent for farmer’s markets or market gardeners.
Rhubarb (Rheum)
Rhubarb is one of my favorite food plants; its red-green stalks beckon summer on and strawberry-rhubarb pie is one of my favorites. During a trip to Chile, I was introduced to nalka, the Chilean wild rhubarb. The plants grew well along the coast and coastal rivers. We cooked the stalks with sugar the same way garden rhubarb is traditionally cooked. The stalks were so bitter and tough we had a hard time eating them. Rhubarb is a seed-bearing perennial that is thought to originate in Alaska. Rhubarb was first known as a medicinal plant 5,000 years ago. The Chinese prized dried rhubarb root for its astringent, laxative properties.
In the last two hundred years, rhubarb has been cultivated as a vegetable (some consider it to be a fruit because it pairs so well with fruits). Only the young stalks are eaten as the leaves of the plant contain high amounts of oxalic acid, an acid that is present in much lesser quantities in other vegetables such as spinach, sorrel, and beet greens. Oxalic acid has a somewhat sour taste.
There are two types of rhubarb that have been cultivated, the difference between the two groups are the color of the stalk and the size of the plants. “Victoria” varieties vary in color from green to light red with a green interior. Red rhubarbs, such as “Canada Red” are smaller plants, with less disease resistance. The stalks are a deep red inside and out.
Rhubarb is usually propagated by cuttings but can be grown from seed. Rhubarb plants grown from seed sometimes do not exhibit the same characteristics as the parent plants. Rhubarb comes quickly in the spring, when temperatures begin to warm up and is harvestable 6 weeks or so after the weather turns. Plants do not grow in hot weather, and will wilt through the summer. In cooler areas, or in beds with high moisture and well-fed soil, rhubarb can be harvested again in the fall.
Harvesting from plants less than three years old will cause the plant to grow less vigorously and to produce fewer stalks. Rhubarb can be harvested twice a year, if half of the plant biomass is left intact.
My favorite way to eat rhubarb is undoubtedly in strawberry rhubarb pie. There is something unreal about the combination of the sweet and sour tastes!
- 1 pound (454 grams) rhubarb, cut into 1/2 inch (1.5 cm) pieces
- 1 pound (454 grams) fresh strawberries, cut into 1 1/2 inch (4 cm) pieces
- 3 tablespoons (30 grams) cornstarch
- 3/4 cup (150 grams) granulated white sugar
- 1 teaspoon fresh lemon juice
- 2 tablespoons (28 grams) unsalted butter, cut into small chunks
- Preheat oven to 400°F. Pre-chill pie crust in refrigerator.
- Cut and place strawberries and rhubarb in a large bowl.
- Mix cornstarch and sugar together and turn in the fruit to the mixture.
- Remove the chilled pie crust from the fridge. Pour the fruit mixture into the prepared pie shell. Sprinkle the fruit with about 1 teaspoon of lemon juice and dot with 2 tablespoons of butter.
- Add lattice as top crust, bake at 400°F for 45 minutes, or until the crust is a golden brown color and the fruit juices begin to bubble.
- Transfer pie to wire rack to cool. When fully cool (several hours later) the juices will gel.
- Pie should keep for up to three days at room temperature but I have never, ever seen one last that long!
Source: http://www.underwoodgardens.com/slide-gardening-tips-and-tricks/rhubarbs-story/?utm_source=rss&utm_medium=rss&utm_campaign=rhubarbs-story
