What are rhubarb crowns? Rhubarb crowns are the root systems of rhubarb plants, which are commonly used in culinary dishes and traditional medicine. These crowns are the basis for cultivating rhubarb, and understanding their characteristics and care is essential for successful rhubarb cultivation.
Rhubarb crowns are typically obtained from rhubarb plants that have been propagated through division or cuttings. They consist of a central rootstock, known as the crown, surrounded by a mass of fibrous roots. The crown is the most vital part of the rhubarb plant, as it is responsible for storing energy and nutrients, which are essential for the plant’s growth and development.
When selecting rhubarb crowns for planting, it is important to choose healthy ones. Look for crowns that are firm, with no signs of rot or disease. The roots should be white and firm, indicating good quality. Crowns with brown or soft roots may be infected with fungi or bacteria, which can harm the plant.
Rhubarb crowns are usually planted in the early spring, once the danger of frost has passed. They require well-drained soil with a pH level between 6.0 and 6.5. Before planting, prepare the soil by loosening it to a depth of about 12 inches and incorporating organic matter, such as compost or well-rotted manure, to improve soil fertility.
To plant rhubarb crowns, dig a hole that is slightly deeper and wider than the crown. Place the crown in the hole, ensuring that the top of the rootstock is about 1 to 2 inches below the soil surface. Backfill the hole with soil, pressing it firmly around the crown to remove air pockets. Water the plant thoroughly after planting to help settle the soil.
Proper care of rhubarb crowns is crucial for maintaining healthy plants. Water the plants regularly during the growing season, but avoid overwatering, as this can lead to root rot. Mulching around the base of the plants can help retain moisture and suppress weeds.
In the first year after planting, do not harvest any leaves from the rhubarb plants. This allows the plant to establish itself and build up energy reserves. After the first year, you can begin harvesting the leaves in late spring or early summer. To harvest, use a sharp knife or shears to cut the leaves at the base of the plant, leaving the crown intact. Rhubarb leaves are toxic and should not be consumed.
Rhubarb crowns can live for many years, producing new growth each season. To ensure the health of the plants, divide and replant them every few years. This process involves removing the entire plant, including the crown, and dividing it into several smaller crowns. Each smaller crown can then be replanted in a new location.
In conclusion, rhubarb crowns are the foundation for growing this versatile plant. By understanding their characteristics, proper planting and care techniques, and how to propagate them, gardeners can enjoy the benefits of rhubarb for years to come.
