Bottle trees (Brachychiton pupulneus) are NOT desert trees. Many people believe they are but they come from semi arid parts of Australia and should be watered, planted and managed as mesic not xeric plants. Spider mites are the bane of many gardeners whether they are found on Italian cypress or tomato plants. Learn how to identify and manage them. Plant yellowing is common in the desert either resulting from a plant nutrient shortage, planting or watering issue. Learn the difference!