The holly family (Ilex spp.) Contains hundreds of species varying in size, form and leaf colour. Some are ideal for short hedges, while others make amazing, tall screens for privacy. The fast-growing Ilex x aquipernyi, sturdy to U.S. Department of Agriculture plant hardiness zones 5 through 9, is an ideal, hybrid specimen with various varieties to get a bigger hedge. For a compact, shorter hedge that grows no taller than 5 feet, consider a variety such as the “Shamrock” inkberry holly (Ilex glabra “Shamrock”), which can be hardy in USDA zones 5 through 9.
Amend the soil around the planting area with abundant compost or other modifications. Till the amendments to the soil to a depth of 8 inches. Hollies prefer rich, well-drained dirt and perform well in areas of full sun or partial shade. The compost or other modifications enhance drainage whilst adding nutrients to the soil.
Dig a trench as deep as the root balls are tall and the period of the hedge. For a single-row thrust, dig the trench approximately 1 1/2 to 2 times as wide as the root balls. For a staggered hedge, which is preferred to get a thicker, taller thrust, dig two trenches within about 1 foot from one another. While you dig individual planting holes for specimen plants, a trench is a easier way to plant a hedge.
Break up the root balls of their hollies when they had been in container. To break up the roots, score the root balls with a sharp object such as a garden cultivator. If the roots are balled and burlapped, the nursery should have previously scored the roots to get you.
Place the hollies from the trench, staggering them 6 inches apart for smaller, dwarf varieties such as several Japanese hollies (Ilex crenata), which are hardy to USDA hardiness zones 6 through 9; distance the holes 18 to 30 inches apart for bigger hollies. For casual displays, such as when using hollies such as Ilex aquipernyi, plant them several feet apart.
Backfill the trench with the dirt you’ve removed it. Compact the soil slightly so it is tight but still airy.
Water the hedge thoroughly after planting and water for 20 minutes three times a week.
Apply a two- to 4-inch layer of mulch around the holly hedge after planting. The mulch regulates the soil temperature and moisture.