What does 'balled and burlapped' refer to in tree transplanting?

The term 'balled and burlapped' refers specifically to a method of securing the roots of a tree or shrub for transport. In this technique, the tree is dug out of the ground with a portion of the soil intact, which is then wrapped in burlap to protect it during handling and relocation. This method helps to retain moisture and reduces shock to the plant when it is transplanted, as it maintains a substantial amount of the root system and surrounding soil.

Understanding this term is crucial in tree transplanting because it highlights the importance of preserving the root structure and soil in which the plant has grown. This approach ensures a higher survival rate for the transplanted tree, as the roots are less exposed to air and environmental stress during the move. In contrast, the other options do not specifically pertain to the process of tree transplanting in the same way; they relate to different aspects of horticulture and tree care.