Q. I received the Wittwer vegetable “bible” but I must admit, I’m a little confused by the title, as It seems to be pertaining to Moapa and Virgin Valleys and not the Las Vegas Valley.  As longtime residents of the Las Vegas Valley, don’t those valleys have a different climate than the Las Vegas Valley? Dr. Sylvan Wittwer’s vegetable garden in Logandale, Nevada, eastern Clark County in southern Nevada. Vegetable growing conditions are similar to Las Vegas. A. Yes, they do. It is slightly different, a bit warmer to be exact. The climates between the two valleys are very similar. Both valleys are in the Eastern Mojave Desert. It’s hard to find information from a source like Dr. Sylvan Wittwer for the Las Vegas Valley. Dr. Sylvan Wittwer was the past extension vegetable specialist for Michigan State University but originally from Hurricane, in southern Utah in Washington County.             Dr. Wittwer was the retired Vegetable Specialist from Michigan State University when he moved to our eastern Mojave Desert climate. He grew vegetables in this climate for eight years before he moved back to Utah. It’s difficult to find reliable information in the Las Vegas Valley from such a notable source. If you want, contact me at [email protected] and I will email you the entire pdf copy.