Rhubarb forcer

Terracotta rhubarb forcers

Rhubarb forcer is a horticultural tool used to produce early rhubarb by encouraging the plants to grow in the absence of light. This technique, known as forcing, results in rhubarb that is more tender and flavorful than rhubarb grown in natural light conditions. Rhubarb forcers are typically bell-shaped and made from materials such as terracotta, plastic, or metal. They are placed over the rhubarb plants early in the year, blocking out the light and creating a warmer, darker environment that stimulates the plants to grow.

History

The practice of forcing rhubarb dates back to the early 19th century in the United Kingdom, particularly in the "Rhubarb Triangle" between Wakefield, Leeds, and Bradford in West Yorkshire. This area became famous for producing early-season rhubarb that was highly prized in the market. The technique was developed to meet the demand for fresh vegetables during a period when few were available.

How it Works

A rhubarb forcer is used in late winter or early spring. The forcer is placed over the rhubarb crowns after they have been exposed to a period of cold, which is necessary for their dormancy break. The inside of the forcer becomes warmer than the outside environment due to its ability to trap heat, and the absence of light inside the forcer encourages the plants to grow in search of light. This results in long, pale stalks that are softer and sweeter than those grown in sunlight.

Types of Rhubarb Forcers

Rhubarb forcers come in various sizes and materials:

• Terracotta Forcers: Traditional and aesthetically pleasing, terracotta forcers are heavy and stable, making them less likely to be knocked over by wind. However, they can be more expensive and fragile.
• Plastic Forcers: Lightweight and less expensive, plastic forcers are easier to move and are not prone to breaking. They may not offer the same level of insulation as terracotta.
• Metal Forcers: Durable and sturdy, metal forcers can also be quite decorative. They tend to be more expensive than plastic but offer good longevity.

Benefits of Forcing Rhubarb

Forcing rhubarb offers several benefits:

• Improved Flavor and Texture: Forced rhubarb is generally sweeter and more tender than its sun-grown counterpart.
• Early Harvest: Forcing allows for an earlier harvest, providing fresh produce at a time when other fruits and vegetables are scarce.
• Disease Control: Growing rhubarb in the dark can reduce the risk of some diseases and pest infestations.

Considerations

While forcing rhubarb can produce superior quality stalks, it is important to note that not all rhubarb varieties are suitable for forcing. Additionally, forcing a rhubarb plant depletes its energy reserves, so it is recommended to rotate which plants are forced each year and allow them to recover for a couple of years before forcing again.

Conclusion

Rhubarb forcers are a valuable tool for gardeners looking to produce early, high-quality rhubarb. By understanding the history, types, and benefits of rhubarb forcing, as well as the considerations involved, gardeners can successfully incorporate this technique into their gardening practices.