Las Vegas is primarily situated within USDA plant hardiness zone 9a and 9b. These zones are defined by average annual minimum winter temperatures. Zone 9a experiences minimums between 20F and 25F, while zone 9b sees minimums between 25F and 30F. Understanding the specific zone is critical for selecting plants that can survive the winter conditions prevalent in the region.
Knowledge of the appropriate hardiness zone offers several benefits to gardeners and landscapers. It allows for informed plant selection, increasing the likelihood of successful growth and minimizing losses due to cold damage. Furthermore, selecting plants suited to the climatic conditions contributes to water conservation, as these species are often better adapted to the arid environment. Historically, identifying these zones has facilitated effective agricultural planning and horticultural practices.
