Bob Morris is a horticulture expert living in Las Vegas and professor emeritus for the University of Nevada. Visit his blog at xtremehorticulture.blogspot.com. Send questions to Extremehort@aol.com.
Yellowing of bottle brush leaves oftentimes occurs when the soil is low in nutrients and organic matter content. Fix yellowing leaves by applying a landscape fertilizer every year in the spring and combine it with an annual application of chelated iron.
Big trees use quite a bit of water. The cost of watering these trees must be balanced with the need for cooling.
The Extension Botanic Gardens feature more than 1,500 species of plants, including many found nowhere else in the Las Vegas Valley.
In our Mojave Desert environment, most artificial grasses get over 165 degrees any time when in full sunlight and air temperatures are over 100 degrees.
