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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.

Keep gardens out of full western sun

Question: I have planter boxes that get hours of direct sun. I’ve tried everything from corn to edamame, grapes, peppers, tomatillo and many others. I have even put up shading, but either there is too much sun or maybe I overwater. I’d like to start now and get a jump on summer.

Although it’s warm now, cold weather still possible next month

This has not been unusual weather. It’s the norm. But watch out! February can be dangerous for plants. December 1990 was one of the coldest months on record, but February 1989 was much more damaging to plants.

Ash trees don’t tend to need iron

Question: Should I give my ash trees the same iron treatment as fruit trees?

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After a freeze, it’s possible to reshape citrus

Question: The low temperatures affected the citrus trees. Most of my new growth is on the suckers. Should I remove them or just let the tree be?

Move plants when temperature permits

For those who would like quality roses, Plant World Nursery on West Charleston Boulevard has brought in Weeks roses. These are high quality roses. They will cost more than roses produced for mass merchandisers but they are high quality. For a recommended rose for the desert, visit my blog and search for “best roses for the desert.”

Citrus in the desert is hit or miss

Question: Do oranges grow in Las Vegas? Also, when is the best time to plant a new tree?

Queen palms require much to survive here

Question: During the excessive hot spell in July, our irrigation failed while we were out of town. As a result, one of our queen palms lost all of its branches. In spite of subsequent life support, it does not appear to be coming back. Is that too much to hope for? Is there anything we can do to help it recover, or should we just mourn its passing?

Damage to covered oleanders may be minimal

Reports from the weather station at the University of Nevada Cooperative Extension orchard in North Las Vegas put the low temperatures Dec. 6 and 10 at 20 F with daytime highs around the same as the inside of a refrigerator. I am sure this caused some damage to plants. I posted the weather report on my blog for those interested.

Decomposing matter best way to acidify soil

Question: Have you ever heard of adding vinegar or citric acid when fertilizing plants in our area?

Winter-tender trees best planted early fall, spring

Question: I have seven fruit trees, including some citrus, that I planted in half whiskey barrels about three years ago. They all have had fruit the past two years. I want to transplant them into the ground in order to get more fruit. Is it best to transplant them in the fall or early spring?

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