Dahlia tubers, the swollen underground stems of dahlia plants, require specific storage conditions during dormancy to ensure their survival and subsequent growth in the following season. Improper handling can lead to rot, desiccation, or pest damage, rendering the tubers non-viable. The practice involves lifting the tubers from the ground after the first frost, cleaning them, and storing them in a cool, dark, and dry environment.
Proper overwintering is essential for preserving prized dahlia varieties and ensuring the continuation of garden displays. It represents a cost-effective alternative to purchasing new tubers annually and allows gardeners to maintain collections of specific cultivars. Historically, the practice of tuber storage has enabled the widespread cultivation and propagation of dahlias beyond their native range.
