Las Vegas Review-Journal

Citrus cuttings should not be planted upside down

- Bob Morris is a horticultu­re expert and professor emeritus of the University of Nevada, Las Vegas. Visit his blog at xtremehort­iculture. blogspot.com. Send questions to Extremehor­t@aol.com.

Q: I’m hoping you can help answer how I can start a citrus tree from a cutting. Can citrus trees be started just from cuttings? I mean just a cutting without the rootstock since I don’t have the rootstock to graft it onto. surround the plant with wood chips. I use a 1- or 5-gallon plastic container filled with wood chips to protect the plant from winter cold until the warmer temperatur­es of spring arrive.

Q: I have a parking area that never gets any shade. I want to plant something there that would shade the car. Can you suggest a tree for that spot?

A: Trees use water. Larger trees use more water. With our water crisis and plant water use, I would avoid planting trees. Instead, I would construct a shade structure. Shade structures don’t use any water but will require regular maintenanc­e instead.

Materials that require less maintenanc­e are made from cement and aluminum or steel. If you want to decorate it with plants, use vines instead. Vines planted at the corners and allowed to grow along the top will require less water than a tree.

Q: I planted some fruit trees in Searchligh­t at about 3,500 feet of elevation. Although large, my plum tree produces sick-looking fruit that is not edible. Is there anything I can spray or treat the tree with to improve the fruit or do I have to start over?

A: It sounds like you have a bad variety of plum. No, there is nothing you can spray or use on the fruit tree to improve the fruit. The fruit will stay the same regardless of the fertilizer or sprays you use. Unfortunat­ely, you must start over.

All plums will not work in the desert. The variety you select is very important. If you are dead set on plums then I would suggest you decide on whether you like hard or soft fruit. Although many will work, of the soft fruited varieties, buy Santa Rosa, Catalina, Burgundy and Burbank which are purple or dark red. I have found them to produce good fruit in the desert.

Don’t forget pluots. Pluots are hybrids of plum and apricot but produce fruit that looks like plums. Of the red pluot varieties that have performed well and are productive, try Flavor King, Dapple Dandy and Flavor Grenade.

This is a good climate for plums or pluots, but avoid hot locations. All of them need to be thinned for larger fruit. They grow best on eastern or northern exposures, 8 to 10 feet apart, unless grown in the shade of other trees like in an orchard. Plant them in amended soil and cover the soil with wood chips. Any of the semi-dwarfing rootstocks work well.

 ?? Bob Morris ?? Raised beds for vegetables can be made from wood or cement block. The woods that are naturally most tolerant of decaying are redwood and cedar. Complaints about contaminan­ts in the fly ash and treated wood have been lodged.
Bob Morris Raised beds for vegetables can be made from wood or cement block. The woods that are naturally most tolerant of decaying are redwood and cedar. Complaints about contaminan­ts in the fly ash and treated wood have been lodged.

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