Technically a vegetable, rhubarb stalk is often cooked as a fruit in pies and other deserts. Author, Laura Ingals Wilder called it the "pie plant" in her "Little House on the Prairie" series of novels. Originally from Asia, the root has been used in Chinese medicine for thousands of years and as a natural brown dye in places without Walnut trees. Due to the long journey along the Silk Road, there was even a time when its value to Europeans was comparable to that of cinnamon, silks, and pearls. Marco Polo once went on a quest to find the source of rhubarb and now we have several varieties grown around the world.
Rhubarb with small crowns ready to be separated. |
Planting
Rhubarb roots don't like to be disturbed, so spending time in the beginning to ensure things are just right will ensure a happier and more productive plant.
In Alberta, pick a spot with full sun. In warmer climates with milder winters, pick a partial sun spot. Add some compost to the soil to give the plant a good start and then bury your crowns (the root and bulb part) an inch or two below the ground.
Space your plants at least 3 feet apart as rhubarb has very large leaves and likes to spread out!
Give your new plants a good drink of water, and if the first summer gets dry, water them periodically until the roots have established. After the first year, your plants will be fairly drought resistant, though of course they won't grow as many stalks on a dry year.
As always, add mulch around the plants to hold in moisture and future nutrients, but leave a bare circle directly over the crown to prevent the stalks from holding in too much moisture and rotting.
Rhubarb can also be grown in large containers at least 12 inches wide. Make sure there is a bottom drainage hole and fill the container with soft soil that won't compact easily. Water initially until it flows out of the drainage holes. After that, only water when the soil feels dry to the touch. A yearly top dressing of compost, or compost tea will be needed to keep your plant fed. In the winter, put your plants in a protected area outdoors unless the temperature drops into extreme colds. The plant needs to have freezing temperatures to go fully dormant and grow again next year.
Seasonal Care
You can remove the flower stalks before they bloom to increase your yield or let them bloom if you aren't interested in more rhubarb. However, for the first few years, it is best to remove the flowers so your plant can focus on building strong roots and stalks.
In late fall, clear the dead stalks and leaves from the crown to reduce the chance of rot or mildew.
Every 5 years, divide your rhubarb so that the crowns don't become too crowded. Baby rhubarb makes a great housewarming present!
Harvest
Rhubarb is one of the first garden foods to be ready. Do a big harvest in spring, and depending on the size and health of your plant, again in fall. Alternatively, you can harvest a few stalks at a time all spring through fall.
It's very important not to harvest your rhubarb the first year you plant it. In the second year, harvest only half of what you normally would, and after that, you can harvest as usual.
Stalks are pulled, not cut. Choose the widest stalks to pick. Reach as far down the base of the stalk as you can, give a tug and a twist and the stalk should come right off.
When you have gathered what you will use, or no more than 2/3 of the plant, cut the leaves off of your picked stalks. If you are storing in the fridge, leave an inch of leaf on the stem to retain moisture, otherwise dispose of all of the leaves. The leaves are toxic, and while you need to eat a lot to cause harm, it's best to bury them in the compost out of reach of pets or children.
Storage
You can store rhubarb stalks easily in the fridge for a week. After that they may become soft but are still good for cooking.
Freezing it is incredibly simple and my preferred method. Cut the stem into 1 inch chunks, put them in ziploc bags, remove as much air as you can, and put them in your freezer. No blanching necessary! Frozen rhubarb will be soft when it is defrosted, but you won't notice much difference after baking. In fact, I prefer soft rhubarb for my crumble and will actually freeze it the night before to get that extra juicy feel.
Eating Ideas
The stalks are bitter on their own, but raw and dipped in sugar make a great snack. Alternatively you can make a compote to put over ice cream or trifle, bake into cakes, muffins, or pureed into fruit roll-ups. And of course there is classic rhubarb strawberry pie.
Rhubarb also makes a good alternative to lemonade as a refreshing drink in the summer, especially with a few raspberries added in. ~_^
It's not just for deserts though. Rhubarb can also make BBQ sauces, marinades, salad dressings, ketchup, and even vinegar!
That being said, in my house, Strawberry Rhubarb Crumble rules the roost.
How do you eat your rhubarb?