![]() ![]() In conclusion, if you live in the northern United States, Sky Pencil Holly is a better choice. Also in hot climates, Sky Pencil Holly may have some difficulties, which we will talk about later. Whereas Sky Pencil Holly cannot grow south of zone 9. It can tolerate the climate of zones 10 and 11. In most cases, Sky Pencil Holly can grow in colder climates, but as I mentioned above, it can be broken up by snow.Īs for the south, Italian Cypress performs much better here. Most nurseries recommend growing it from zone 5. Sky Pencil Holly, on the other hand, can tolerate cooler temperatures. This is understandable since Italian Cypress’s natural habitat is in the Mediterranean and northern Africa. It is recommended to grow no further north than the 7 USDA hardiness zone. Italian Cypress is not as hardy as Sky Pencil Holly. If you cut it sooner, multiple stems will start to form where you cut it and you will get the same result as with Sky Pencil Holly. If you choose Italian Cypress as a hedge plant, do not trim it back until it has reached the height you want for the hedge. You won’t get anything like that with Italian Cypress. Tying multiple trunks into a bundle does not always solve the problem. Even a strong wind can break it into parts. The downside of Sky Pencil Holly’s multi-trunk structure is that it can be easily broken apart by snow in winter. At the same time, the Italian Cypress has a sharp tip like the tip of a spear. Occasionally, competing central stems may appear, but they rarely reach the size of the main trunk.Īs a result of the multi-stem structure, Sky Pencil Holly has a blunted tip. On the other hand, Italian Cypress has one central trunk from which the side branches branch off. This means that there is no distinct central trunk, but instead several trunks of varying thickness. Sky Pencil Holly has a multi-trunk structure. Of course, both plants have a strict columnar shape, but even here there are differences. The next distinguishing feature of Sky Pencil Holly and Italian Cypress is the shape. Secondly, you will achieve privacy much faster because of the faster growth rate. First of all, because you need fewer plants to get a dense screen. So if you’re looking for a hedge plant, Italian Cypress is a much better choice. Whereas Sky Pencil Holly grows 6 to 8 inches a year, but if you feed it, it will grow 10 inches a year. Italian Cypress grows much faster, with an annual growth rate of 1-2 feet. The growth rate of both plants is also very different. But the width is not much greater than its competitor, averaging 5 to 6 feet, rarely 8 feet. The Italian Cypress easily reaches 40 feet in height and under ideal conditions can even exceed that mark. Sky Pencil Holly is much shorter than its competitor, rarely exceeding 10 feet in height. If you see no leaves on them early next April, cut them out and hope the holly can fill the open space with foliage from adjacent limbs.Sky Pencil Holly and Italian Cypress Italian Cypress higher than Sky Pencil HollyĪs I mentioned earlier, the size of both plants is fundamentally different. If the infested limbs are not too badly damaged, they may put out new leaves. Spray monthly with horticultural oil during the warm months for the next two years. Hunt at garden centers for a systemic insecticide containing disulfoton (Bonide Systemic Granules is one). Be sure to get the spray under all leaves and onto all stems.Ģ. Immediately spray the entire plant thoroughly with horticultural oil (SunSpray, etc). It looks like euonyus scale….which I usually control by cutting off the entire limb and regularly spraying horticultural oil on the newly emerged foliage.īut for your ‘Sky Pencil’ I hate to recommend cutting out the limb because it will disfigure the plant severely.ġ. This is not connected to the landscaping done nearby. Your diagnosis is correct: scale insects. ![]() Can I save it?Ī: Yow – the holly is “Kivered up wiv it”!! Q: What is going on with my ‘Sky Pencil’ holly? Thinking that it has scale, I drenched it with systemic insecticide. ![]()
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