Dig a trench around the perimeter of the tree wide enough to accommodate the rootball. reticulata 'Willamette'): A more narrow, upright form (25 … They may appear in borders, lawns, between paving stones or through paths, and can become a nuisance. Black gum, blue atlas cedar, ginkgo, golden rain tree, horse chestnut, certain oak varieties (red, Regal Prince®, swamp white, white, and willow), planetree, yellowwood, and zelkova are some of the best options. Suckers are growths that appear from the root systems of many trees and shrubs. The root system of a lilac tree is deep and wide, often creating a large rootball requiring two or more people to pull from the ground. Due to having lilac bushes in the front yard and seeing how they grew I felt confident in planting this new one in the back next to our fence line yet around 5 feet from our septic tank. Ivory Pillar™ Japanese tree lilac (Syringa reticulata ssp. Lilacs (Syringa) are small trees or large shrubs known for their superb scented flowers. These trees will make much better options in your landscape and are way less likely to develop surface roots. Leaves develop gold edges as the season progresses. How to Get Rid of Old Lilac Roots & Trunks. Mark the cut line with flour, spray paint or a garden hose. Dark green foliage lasts throughout summer. reticulata 'Golden Eclipse'): A more compact form (to 24 feet high). Some trees have deeper root systems. This tree is clearly more upright and narrower than other reticulatas. In late spring it will bloom panicles of fragrant, creamy-white flowers. Remaining root tissue may produce suckers in the next growing season. Golden Eclipse Japanese tree lilac (Syringa reticulata ssp. The common lilac (Syringa vulgaris) is a popular perennial shrub that produces fragrant white or purple flowers. Choose from over 280 flowering cherries, crab apples, rowans and other ornamental trees. Ivory Pillar™ Japanese Tree Lilac is a spectacular tree. Autumn 2020 Order now for delivery from w/c 30th November (pot grown) or December onwards (for bare-root). Selected specifically for its pyramidal form. This bush has gotten just huge and full of beautiful green leaves and new buds yet I am very concered that the root system has gotten into our septic tank. Consider a smaller tree.