The timing of dividing mature rhubarb plants is a significant factor in maintaining their vigor and productivity. This process involves carefully lifting the plant and separating the crown into multiple sections, each containing viable buds and roots. Performing this task at the optimal time ensures minimal stress to the plant and allows for successful establishment of the divisions.
Dividing rhubarb rejuvenates older plants, preventing overcrowding and promoting healthier growth. Over time, rhubarb crowns can become dense and less productive. Division allows gardeners to propagate new plants with the same desirable characteristics as the parent plant. Furthermore, it addresses potential rootbound conditions, leading to improved nutrient uptake and increased stalk yield. Historically, division has been a standard horticultural practice to sustain and expand rhubarb patches.