Grows 6 to 8 ft. tall and 2 to 3 ft. wide. Affected plants have dark brown to black roots where the fungus is growing in or on the root tissue. A healthy plant assumes you have the right plant in the right place. The website below shows some possible fungi, which are fairly easy to ID. Sky Pencil Japanese Holly Ilex crenata 'Sky Pencil' ... Water deeply and regularly during the first growing season to establish an extensive root system. History & Lore. So, if a tree has a spread of 20′, I suppose the root system could be anywhere from 20-40′. Sky Pencil Holly has dense dark green foliage and a vertical growth habit that can bring vertical interest to your landscape. Evergreen. But the similarities end there. 1 reason for this - especially for a new transplant planted in summer. A particular root rot disease known as mushroom root rot can be diagnosed by … But not sure if it was the winter or the fact that I possible don't have Male/female plants. Prefers average to moist, well-drained soil, rich in organic matter. Sky Pencil Holly: 5-9: ... A general rule of thumb is that the total root system will be around 2x wider than the crown of a particular tree. About Sky Pencil Holly. With pruning, you can maintain them at a height of 6 feet (1.8 m.) and a width of just 12 inches (30 cm. The 'Sky Pencil' holly shrubs--foundation planted along a fairly long, western exposure, windowless, brick Garage wall--died. Light Requirements: Full Sun. Great for a hedge, specimen, privacy screen, container, entry way accent and Zen/contemporary garden. This is more likely a result of a mistake during the initial planting. Sky Pencil hollies are narrow, columnar shrubs that grow up to 8 feet (2.4 m.) tall and 2 feet (.6 m.) wide. Moisture: Regular water schedule to ensure the growth of a mature root system. Black root rot, caused by the fungus Thielaviopsis basicola in "Sky Pencil" holly and other Japanese hollies, attacks the root system. How to Propagate Holly Shrubs. Fertilizer: Suggest a well-balance fertilizer like a 10-10-10 or 13-13-13 or even a Holly-toner. I love the look and don't entend to have anything but the skypencil against that wall. Useful to fill those narrow spots in foundation plantings, as a … Sky Pencil Holly is a narrow, columnar shrub ideally suited for small areas. Read on to find out how to plant a Sky Pencil holly and how easy it is to care for this interesting plant. This Japanese holly “sky pencil” plant arrived in great condition (see picture), and the plant was nicely placed in its container with plenty of soil. New growth emerges light green but darkens up with age. Latin Name: Ilex crenata 'Sky Pencil' Plant Type: Evergreen Shrub. ... they have not had enough time to establish a large enough root system and shallow, frequent waterings only tease them and place the plants under further stress. The Sky Pencil is an evergreen shrub that has small, glossy, dark green leaves year round. ). "...I need to know how much water they need as I will have to provide it." Tolerates mild drought, when established. In a Container Because this shrub does not have an invasive root system, it can be grown in containers. Sky Pencil Japanese Holly - Unique and with a style all its own, Ilex crenata, commonly known as Japanese holly or box-leaved holly, is a dense, multi-branched, evergreen shrub with a rounded form that typically matures to 5-10’ tall and wide with dozens of uses in the landscape. Sky Pencil Holly was first introduced back in 1985 by the U.S. National Arboretum, and has increased in popularity in the landscape industry with each passing year. At maturity it may put on a bit of weight around the middle, but so far has not exceeded 2 feet in diameter. Planted in a large container, it makes an elegant formal appearance. A very distinctive holly, Ilex crenata 'Sky Pencil' is a slow growing, narrow, strongly columnar evergreen Japanese Holly with a shiny foliage of convex, dark green leaves, which holds all year. The cultivar name of this plant gives a good indication of its signature feature—this is a bush that is extremely narrow relative to its height. Comment About Planting Plant Sky Pencil holly in well-drained soil in full to mostly sun. in length. A lanky sky pencil holly might just flop over and turn into a splayed out weeping holly. Water regularly during the first growing season to establish a deep root system. ‘Sky Pencil’ was intro­ duced by the U.S. National Arboretum in 1992. This Holly Tree can get up to 10 feet in … Holly belongs to the genus Ilex, which includes several commonly cultivated shrubs grown for their dark-green, spiny foliage and showy crimson berries. You need to test your soil down at root level to find out how your soil drains. 'Sky Pencil' is a female cultivar which needs a male pollinator in order to produce fruit. Prune annually to shape. This plant prefers light, moist, acidic soils with good drainage. The Sky Pencil Holly needs the maximum water during the first year of its growth due to the vast root system establishment. Fertilization: Fertilize your Sky Pencil Holly tree once annually with a slow-release fertilizer. Feed with a general purpose fertilizer in spring. Once you have these canes, you can cut them into pieces about six inches (15 cm.) Poor soil aeration weakens holly roots, allowing fungi to invade and cause considerable damage. Amazon.com : Sky Pencil Japanese Holly - 50 Live Plants - Ilex Crenata - Formal Low Maintenance Evergreen : Garden & Outdoor Applying a slow release fertilizer once a year to the top of the root ball will help greatly with these problems. Consistently wet soils can cause problems with the roots. The name itself reveals its slender shape. 98 Sky Pencil Japanese Holly - 10 Live Plants - Ilex Crenata - Formal Low Maintenance Evergreen 3.9 out of 5 stars 10 How to increase the moisture retention ability of the soil? Once an evergreen like a Japanese holly drops its leaves, the root system is already dead. Dark green foliage holds its color year round, sporting purple berries in fall. It matures to an average height of 6 feet to 10 feet and an average width of 1 foot to 2 feet, depending on climate and other environmental factors. Also included in the list of the most common sky pencil holly problems is root rot. The narrow, columnar form, is just right for small areas. Sky Pencil Holly, native to Japan, is one of the most beautiful trees for small gardens. ‘Sky Pencil’ is a very distinctive, upright or as a low, narrow hedge. Sky Pencil Holly problems that may arise include black rot, green leaves turning brown or black, web blight, or leaf spots that turn into yellow spots. 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