We don't have distinct seasons here in the desert, just warm and hot. For example, deciduous trees begin to lose their leaves in November and don't finish until the new leaves come out beginning in January. Despite the lack of anything resembling seasons in a more temperate climate, there are subtle changes during the year. Even though the temperature doesn't drop that much, some of the plants go dormant. The big event of the year occurs in April, May and June when the local cactus begin to flower. This is a prickly pear flower, one of the most spectacular.