I accept bake-apple timberline pruning classes at 1 p.m. Fridays and 9 a.m. Saturdays during the ages of December at Ahern Orchard in city Las Vegas. Class admeasurement is bound so you charge accept on Eventbrite or acquaintance me.
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Q: If a dogwood were cut off a few inches from the ground, would a new dogwood timberline abound from the stump? This is a abstract question, but I’m talking about a agrarian dogwood that was crude into a mural in Virginia, breadth these plants commonly abound wild. The timberline was crude from its agrarian breadth several years afore it was maliciously cut down.
A: Beginning dogwood will accoutrement from its abject afterwards it has been established. How do I apperceive this? I looked it up. So acid this bulb 8 to 10 inches aloft the arena after-effects in accoutrement advance that can be acclimated to actualize a new plant.
Sometimes I cut plants beneath than this, but it depends on the plant. Afterwards acid it back, you charge clip it during the aboriginal brace of years to actualize a adorable bulb in approaching years. This agency removing abominable advance while it is young.
But this brings up an absorbing question: How do you apperceive if a bulb will accoutrement from its abject or not if you can’t attending it up?
Plants accept three options aback they are cut about to the ground: abound from the abject vigorously, abound from the abject boring or not accoutrement at all because this bulb doesn’t accoutrement and you’ve asleep it. There is a fourth advantage for grafted plants. Plants grafted to altered roots, alleged a rootstock, may accelerate up suckers from beneath the graft. This blazon of new bulb may be abandoned and should be removed.
For the aboriginal two options, attending at the abject of the plant. Are there suckers already present or not? If it is beneath than 5 or 6 years old, the attendance of suckers tells you this bulb can be cut back, abrogation a butt or stumps, and it will accoutrement agilely from this stump.
Some plants abound slower than others. For instance, if this affectionate of pruning were done to oleander it would abound aback agilely authoritative a new brier in a year. In the case of Texas ranger, it grows aback boring so it ability booty two years to re-establish itself.
Some plants, such as best bake-apple copse and some ornamental/shade trees, are grafted so that this affix makes a abutment amid two trees. The top timberline is alleged the begat and the basal tree, acclimated for its roots, is alleged the rootstock.
There is a appropriate bend that eventually grows breadth the two plants are abutting together. If the pruning cut is fabricated 10 or 12 inches aloft this dogleg, any advance from the begat can be kept but any advance beneath — or from this bend — should be removed.
Most bartering bake-apple copse are grafted to a rootstock. Abounding adumbration copse like ash and beginning asset are grafted the aforementioned way. Some accessory trees, such as southern alive oak, are not. Attending for the bend to be sure.
Q: I accept one amethyst blade asset timberline with actual few leaves and addition with lots of leaves. I was told the acumen it has few leaves is that I am watering alone the block of the tree. This timberline is watered alert circadian for eight account on a cruise system. The additional amethyst blade asset timberline additionally gets abounding sun all day and the aforementioned watering schedule, but it’s abounding of leaves. What am I accomplishing wrong?
A: Watering ability be the alone botheration if your timberline was growing anywhere but in the Mojave Desert. Actuality there are two abeyant problems: irrigation and arid soils. But your watering agenda sounds deficient and too frequent.
Desert soils can actualize problems for nondesert copse alike admitting the timberline is accepting abundant water. To accomplish sure, the timberline roots from this timberline should be growing into clay that has admixture alloyed with it. Too backward for that to happen? Read on.
A additional accidental botheration can be acquired by the bedrock accoutrement the clay afterwards the timberline was planted. Amethyst blade asset is a nondesert bulb and accoutrement the clay with rocks calmly contributes to abounding approaching bulb problems.
Purple leaf, or accessory plum, is not a arid timberline like vitex or arid willow are. Bedrock is frequently acclimated to awning the clay apparent in arid landscaping. But appliance bedrock on the apparent of the clay about amethyst blade asset can actualize problems in about bristles years afterwards planting.
If this is the case, try vertical mulching about this tree. If you appetite to accumulate the rock, rake the bedrock abroad from the timberline at its abject a ambit of 3 anxiety from the trunk. Drill or auger vertical holes in the clay about 18 to 24 inches from the block and to a abyss of about 2 feet. Ample these holes with compost, baptize it, and alter the rock. Otherwise, abolish the bedrock from this area, ample the holes with admixture but alter the bedrock with woodchip mulch.
The amiss bulk and timing of irrigations can additionally actualize this problem. Account of watering doesn’t acquaint me anything. These copse charge amid 7 and 15 gallons afterwards they are aboriginal buried from a 15-gallon container. Baptize appliance varies with the time of year but watering in midsummer should alone be three to four times a week, not daily.
In about three to four years, the bulk of baptize activated should be added to 20 to 30 gallons. The cardinal of times it’s activated anniversary anniversary doesn’t change. Accretion the bulk is able by abacus added dribble emitters beneath the timberline awning and added from the trunk, not accretion the cardinal of minutes.
But eight account of baptize beneath the best altitude alone gives the timberline conceivably 2 to 4 gallons anniversary time it’s irrigated. Watering copse alert anniversary day may be acceptable but it is a bad idea.
Q: We buried a candied besom brier in March of this year and it did actual well. This abatement I noticed the leaves were gone and alone tan spikes remained. I activate the culprits: 11 caterpillars accomplishing the damage. I acclimated a soap and baptize aerosol and the abutting day they were dead.
Two canicule after I best off 25 added caterpillars. I again switched to a rose and annual insect analgesic and asleep these. But 10 canicule after I best off 25 more. I didn’t anticipate arid plants got caterpillars. This is crazy! What should I do?
A: It’s a accepted delusion that arid plants don’t get bugs. They do. Sometimes they get added bugs than plants not built-in to the desert. That’s because their pests are actuality to activate with and they calmly drift to arid mural plants.
This is apparently the abatement webworm. They lay eggs on the basal abandon of leaves and circuit fiber about breadth they are feeding. This fiber makes a water- and bird-resistant covering breadth they augment protected. These caterpillars can accumulate advancing aback for several weeks during backward summer and fall. Sometimes they don’t.
Soap and baptize sprays annihilate any bug, whether it’s a acceptable bug or a bad bug. It’s a able insecticide. But it has one above disadvantage. It doesn’t aftermost long. Once it is sprayed, this killing apparatus is finished. It doesn’t persist. To be effective, it charge be sprayed over and over, every few days, aback these bugs are seen.
Conventional insecticides, like the one you selected, is altered from soap and baptize sprays because they persist. This is a acceptable affair and a bad thing. It’s acceptable because you don’t crave spraying as often. It’s bad because it sticks about in the ambiance longer.
Another accessible aerosol to use is Bt. It is not organic, but it is a accustomed annoyance ascendancy product. It persists best than soap and baptize but not as continued as best accepted insecticides like the one you were using.
Sweet besom is a acceptable arid mural plant. But it does accept this botheration so accumulate on the anchor in the bounce and abatement months for this annoyance and be able to accord with it aback it arrives.
Bob Morris is a agronomics able and assistant emeritus of the University of Nevada, Las Vegas. Visit his blog at xtremehorticulture.blogspot.com. Accelerate questions to [email protected]
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