Rhubarb is a delicious and versatile vegetable, often used in pies, tarts, and jams. However, it can be a bit finicky to grow, especially in colder climates. One way to get a head start on the growing season is to force rhubarb to grow. Forcing rhubarb involves simulating the conditions that trigger the plant to produce stalks, allowing you to harvest them earlier than usual. In this article, we’ll explore the process of forcing rhubarb to grow and provide tips and tricks for success.
Understanding Rhubarb Growth
Before we dive into the process of forcing rhubarb to grow, it’s essential to understand how the plant grows naturally. Rhubarb is a perennial plant that typically grows in the spring and summer months. It produces large, leafy greens and stalks that can be harvested for cooking. The plant grows from a crown, which is a thick, underground stem that produces new growth each year.
In the winter, rhubarb plants typically go dormant, and the crown is protected by a layer of soil and mulch. As the weather warms up in the spring, the crown begins to produce new growth, and the stalks start to emerge. Forcing rhubarb to grow involves simulating this process, usually by providing the plant with a period of cold temperatures followed by warmth and light.
Why Force Rhubarb to Grow?
So, why would you want to force rhubarb to grow? There are several reasons:
- Earlier harvest: Forcing rhubarb to grow allows you to harvest the stalks earlier than usual, often in late winter or early spring. This can be a great way to get a head start on the growing season and enjoy fresh rhubarb before it’s available in stores.
- Increased yield: Forcing rhubarb to grow can also increase the yield of the plant. By simulating the conditions that trigger the plant to produce stalks, you can encourage the plant to produce more stalks than it would naturally.
- Improved flavor: Some gardeners believe that forced rhubarb has a more delicate flavor than naturally grown rhubarb. This may be due to the fact that the plant is producing stalks under simulated conditions, which can result in a more tender and flavorful product.
How to Force Rhubarb to Grow
Forcing rhubarb to grow is a relatively simple process that requires some basic equipment and a bit of patience. Here’s a step-by-step guide to get you started:
Materials Needed
- A rhubarb crown or plant
- A large pot or container with drainage holes
- A cold frame or unheated greenhouse
- Mulch or straw
- Water
Step 1: Prepare the Rhubarb Crown
The first step in forcing rhubarb to grow is to prepare the rhubarb crown. If you’re using a new crown, make sure it’s healthy and free of disease. If you’re using an existing plant, cut the crown back to about 2-3 inches from the ground. This will help the plant focus its energy on producing new growth.
Step 2: Plant the Rhubarb Crown
Next, plant the rhubarb crown in a large pot or container with drainage holes. Fill the pot with a well-draining potting mix, and make sure the crown is buried up to the base of the leaves. Water the soil gently but thoroughly.
Step 3: Provide Cold Temperatures
Rhubarb needs a period of cold temperatures to trigger the production of stalks. Place the pot in a cold frame or unheated greenhouse, where the temperature is around 40-50°F (4-10°C). Keep the soil moist but not waterlogged.
Step 4: Provide Warmth and Light
After 6-8 weeks of cold temperatures, it’s time to provide the rhubarb with warmth and light. Move the pot to a bright, sunny location with temperatures around 60-70°F (15-21°C). You can also use grow lights to provide supplemental lighting.
Step 5: Harvest the Stalks
After 2-3 weeks of warmth and light, the rhubarb stalks should be ready to harvest. Cut the stalks at the base of the plant, leaving about 1 inch of stem attached to the crown. You can harvest the stalks for several weeks, but be sure to leave some of the leaves intact to allow the plant to continue growing.
Tips and Tricks for Forcing Rhubarb to Grow
Here are a few tips and tricks to keep in mind when forcing rhubarb to grow:
- Use a variety that’s suitable for forcing: Some rhubarb varieties are better suited for forcing than others. Look for varieties like ‘Victoria’ or ‘Timperley Early’, which are known for their tender stalks and high yields.
- Provide consistent moisture: Rhubarb needs consistent moisture to produce healthy stalks. Make sure the soil is kept moist but not waterlogged.
- Watch for pests and diseases: Rhubarb is susceptible to pests and diseases like slugs, snails, and crown rot. Keep an eye out for these problems and take action quickly if you notice any issues.
Common Problems When Forcing Rhubarb to Grow
Here are a few common problems that can occur when forcing rhubarb to grow:
- Weak or spindly stalks: If the stalks are weak or spindly, it may be due to a lack of light or nutrients. Make sure the plant is receiving enough light and fertilize the soil regularly.
- Crown rot: Crown rot is a common problem when forcing rhubarb to grow. It’s caused by overwatering and can be prevented by making sure the soil is well-draining and not waterlogged.
Conclusion
Forcing rhubarb to grow is a great way to get a head start on the growing season and enjoy fresh rhubarb before it’s available in stores. By following the steps outlined in this article and providing the right conditions, you can encourage your rhubarb plant to produce delicious and tender stalks. Happy growing!
What is forced rhubarb and how does it differ from regular rhubarb?
Forced rhubarb is a type of rhubarb that is grown using a specific technique to enhance its flavor and texture. Unlike regular rhubarb, which is grown outdoors and exposed to natural sunlight and weather conditions, forced rhubarb is grown in a controlled environment, typically in a dark or shaded area. This unique growing method allows the rhubarb to develop a more delicate flavor and a tender, less fibrous texture.
The process of forcing rhubarb involves covering the plants with a container or a mound of soil to exclude light and stimulate the growth of the stalks. This technique can be used to produce rhubarb earlier in the season than regular rhubarb, and it can also result in a more consistent flavor and texture. Forced rhubarb is often considered a delicacy and is prized for its unique characteristics.
Why should I force my rhubarb to grow?
Forcing your rhubarb to grow can be a great way to enhance its flavor and texture, and to produce a crop earlier in the season. Forced rhubarb is also less likely to be affected by pests and diseases, as it is grown in a controlled environment. Additionally, forcing rhubarb can be a fun and rewarding process, allowing you to experiment with different growing techniques and to enjoy the fruits of your labor.
By forcing your rhubarb, you can also extend the growing season and enjoy a longer period of harvest. This can be especially beneficial if you live in an area with a short growing season or if you want to have a steady supply of fresh rhubarb throughout the year. With a little patience and effort, you can enjoy delicious, tender rhubarb right in your own backyard.
What type of rhubarb is best suited for forcing?
Not all types of rhubarb are well-suited for forcing. The best varieties for forcing are those that are specifically bred for this purpose, such as ‘Victoria’ or ‘Timperley Early’. These varieties tend to have a more delicate flavor and a tender texture, making them ideal for forcing.
When selecting a variety of rhubarb for forcing, look for plants that are compact and have a high yield of stalks. Avoid varieties that are too large or too vigorous, as they may not respond well to the forcing process. It’s also a good idea to choose a variety that is resistant to disease and pests, to minimize the risk of problems during the growing process.
How do I prepare my rhubarb plants for forcing?
To prepare your rhubarb plants for forcing, you’ll need to make sure they are healthy and well-established. Start by dividing and replanting your rhubarb crowns in the fall, about 6-8 weeks before you plan to force them. This will give the plants time to establish themselves before the forcing process begins.
Once the plants are replanted, make sure they are receiving adequate water and nutrients. You can also add a layer of compost or manure to the soil to provide extra nutrients. About 2-3 weeks before forcing, stop watering the plants and allow the soil to dry out slightly. This will help to stimulate the growth of the stalks and prepare the plants for the forcing process.
What materials do I need to force my rhubarb?
To force your rhubarb, you’ll need a few simple materials. You’ll need a container or a mound of soil to cover the plants, as well as some straw or other insulating material to keep the soil warm. You’ll also need some string or twine to tie the stalks together, and a sharp knife or pruning tool to harvest the rhubarb.
You can use a variety of containers to force your rhubarb, including terra cotta pots, wooden barrels, or even an old chimney pot. Just make sure the container is large enough to cover the plants and has drainage holes to prevent waterlogged soil. You can also use a mound of soil to cover the plants, as long as it is high enough to exclude light and stimulate the growth of the stalks.
How long does it take to force rhubarb?
The length of time it takes to force rhubarb can vary depending on the variety and growing conditions. Generally, it takes about 6-8 weeks to force rhubarb, although some varieties may be ready in as little as 4 weeks. The forcing process typically begins in late winter or early spring, when the plants are still dormant.
During the forcing process, the plants will begin to grow and produce stalks, which will be ready to harvest when they are about 12-18 inches tall. You can check on the plants regularly to see when they are ready, and harvest the stalks when they are tender and flavorful. With proper care and attention, you can enjoy a bountiful harvest of delicious, forced rhubarb.
Can I force rhubarb in containers or indoors?
Yes, you can force rhubarb in containers or indoors, as long as you provide the right growing conditions. To force rhubarb in containers, simply plant the crowns in a large pot or container and cover them with a layer of straw or other insulating material. Keep the soil warm and moist, and provide the plants with indirect light.
To force rhubarb indoors, you can use a similar technique. Plant the crowns in a large pot or container and cover them with a layer of straw or other insulating material. Place the pot in a warm, dark location, such as a basement or cupboard, and keep the soil moist. With proper care and attention, you can enjoy a bountiful harvest of delicious, forced rhubarb, even in the middle of winter.