The bypass blades on shears and loppers cut cleanly through live branches with very little effort. Plant the zone 9 lilac varieties in a site with full sun. The lopper's cushioned handle grips are comfortable and slip-free, and the bright orange label helps the tool standout and made it easy to find when I carelessly left it on the ground. Read this article to find out when and how to prune a lilac bush. Pruning lilac trees on a regular basis keeps them from becoming too tall and unmanageable. There is nothing in the garden as beautiful as a lilac. To reinvigorate an older plant and to encourage more blooms, remove about one third of the plant each year by cutting the selected shoots and branches back at ground level. It is generally better to cut the entire stem. The other bush has never produced flowers. You prune back ALL the stems to about 4-5″, leaving you nubs. Once the growing season has ended, remove any unsightly shoots. French Lilac Growing Information. My husband is afraid to prune them in case they don't bloom again. Head (cut) back the retained shoots to just above a bud to encourage branching. Avoid removing Otherwise, said Tyler, you risk cutting off next year’s flowers. Question: I have a small lilac bush that has one side full of blooms and the other half all leaves. the bypass shears for deadheading spent blooms and clipping off the ends of thin branches. He's gone for a few days so I am going to prune as much as I can. It has grown and is now hitting the house and gutter. - In this video, Felix from Gurney's demonstrates how to prune lilac bushes. Question: I have two lilac bushes; both are about three-years-old. Pop is gone now, but we are reminded of him and his passion for gardening every spring when 'his' lilacs are in full bloom. Question: I have a white lilac bush. I stopped by to learn about fertilizing it. When to Prune Lilac Bushes Many of the newer lilac varieties grow quickly and might need pruning starting in their second or third year. Never knew you had to prune lilacs -- good to know. One has doubled in size and flowered the year before last with only one set of blooms. Thank you, Grandpop! Renaissance Woman from Colorado on April 02, 2012: Really appreciated learning how to care for my lilacs. I am used to just seeing the light purple and the white variety. Prune out some of the suckers, and remove any crossing branches or leggy limbs. I have a small 4 foot lilac bush ,it's called blum all summer,when do I prune it. Proper pruning is also important, to avoid trimming off next year's buds. Proper pruning and thinning also helps to increase air circulation; promoting new growth for a strong and healthy plant. If you are pruning lilac trees or shrubs entirely to within inches of the ground, it is best to do so in early spring. Lilac (Syringa vulgaris) is an easy-growing shrub that will add beautiful color to a landscape in midspring. May 21, 2014 - Lilacs are wonderful additions to nearly any landscape; however, periodic pruning is vital in order to keep lilacs healthy and looking their best. Answer: A healthy lilac will send up new shoots. This Lilac is about 8 foot high and about as maybe I ought to trim the top a bit after blooming? My grandfather is gone now, but I am reminded of him every spring when 'his' lilacs are in full bloom. Second blooms can happen, and may be weather related. However, pruning helps to control the height and shape of the shrub, and helps to keep them blooming consistently every year. Fragrant, colorful lilacs are easy to grow in most regions. I did not do excessive pruning - but will look at again after the blooming so the branches on the Right do not weigh down the large trunk on that side.