You had an article a while back about trimming oleander down before spring. I have five in my backyard and have never done that. I am afraid to trim them down.
Bob Morris
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.
Powdery mildew of grapes is also a problem if there is not enough air movement through the vine or past the bunches so they dry. It is best if the vine is growing in full sun.
When can we cut back star Jasmine and plant lantana?
I was reading about your use of pheromone traps for insect control in fruit trees. Which traps do you use, and when do you put them out?
Is there a difference between rosemary used for cooking and rosemary used in landscaping?
I have a major borer problem with my nectarine tree. I will be removing it and replanting. Do I need to treat the soil before I plant another tree?
A friend of mine is having trouble with his century plants, agave and cactuses turning yellow in June and July. These plants are in a rock yard with hand watering. They are 2 years old.
We have a critter attacking our lemons. It does not eat the fruit, only the peel. It eats the peel so cleanly that the bare fruit is left hanging on the tree.
We use a white, breathable fabric for some of our tender desert plants when there’s a chance of freezing temperatures.
Grape leaf skeletonizers have multiple generations during the growing season and protection from Bt only lasts a few days.
Canary palms are susceptible to a disease called Fusarium that can contaminate the soil in the planting hole and prevent you from planting a new one in that spot.
The best time to transplant a Joshua tree is in mid- to late spring, but with this plant it could be done in summer as well. The worst times are fall and early winter months. Stay away from these months for planting a Joshua.
Q: I enjoy your column, but you never write about roses. We inherited 14-year-old bushes. The bushes are important, and they should look nice.
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