Nerium oleanders might be more resilient than you think when it gets chilly. Once established, they don’t require a cover to shield them from cold.
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.
Question: Following your advice, I am planning to replace all of the stone mulch under and around the shrubs in my yard and use bark mulch, which attracts roaches, I am told.
Las Vegas cold snaps tend to hit plants at times when they’re not prepared.
Question: I was told by a landscaping company that the fronds from Mexican fan palms cannot be chipped and recycled into mulch because they are too alkaline. This was news to me! Your opinion regarding that palms-too-alkaline-for-mulch theory would be appreciated.
Question: Can you help me identify some insects on my grapes? They are quite small and devour the leaves of my grape vines, leaving them like skeletons. There are literally thousands of them in the summer. They stay until late fall and are very annoying. What can I do to get rid of them?