Which pruning technique is used to restrict the height of the plants when maintaining multi-stem growth?

To restrict the height of plants while maintaining multi-stem growth, cutting back to 6-12 inches above ground level is particularly effective. This technique encourages vigorous new growth while also managing the overall height of the plant. By cutting to this range, the plant is stimulated to produce multiple stems and remain bushy, which is desirable for maintaining a certain aesthetic and functionality in landscaping.

This technique is typically used in the management of shrubs or perennials where a dense, low profile is preferred. The new growth that emerges after such a cut tends to be healthier and more robust since it encourages lateral branching rather than vertical growth. This maintains a fuller appearance without allowing the plant to grow excessively tall, which aligns with the goal of restricting height while encouraging multi-stem formation.

The other techniques mentioned, while valid in different contexts, do not specifically address the dual goals of restricting height and promoting multi-stem growth as effectively as cutting back to 6-12 inches.