Container-grown trees can be planted year-long. However, in the Las Vegas desert, fall, early winter and spring are the optimal times for planting. If you decide to plant the trees during the hot summer months, make sure you water them promptly and properly. Different types and sizes of trees require different amounts of water. You should check the grower instructions for the trees you’re planting. Planting Potted Peach Trees: Peach trees are deciduous species that grow well in desert climate. It is recommended that potted peach trees purchased from the nurseries be planted after the summer heat passes. The best months for planting are September and October.