These plants should be cut now, in late winter, before growth starts in the spring. If you have woody plants that bloom before June, their flower buds were actually formed last year.
Examples: azaleas, forsythia, kerria, lilac, flowering almond and most fruit and ornamental flowering trees. Prune after they bloom and not after July, when flower Estimated Reading Time: 4 mins. Call us today at to learn more about our pruning service, available in Great Falls, the City of Falls Church, Vienna, McLean, and North Arlington. Our Pruning Service. At O’Grady’s Landscape, we find our pruning service to be a critical part of any lawn care package. Apr 28, To prune your lilacs, start deadheading in early-to-late spring by cutting the flowers at their base just after they’ve reached their peak.
You should also cut any flowers that are already dying so they don’t sap energy that could be used for new growth%(4). To prune, you can be extreme and cut most lilacs back to near the ground. Over several years they will send up new shoots, but in the meantime they are not attractive. I like to prune back about one third of older branches each shrubfell.buzzg: Arlington VA. Jan 09, You can prune the entire plant back 6 to 8 inches from the ground.
This is a very dramatic method and you won’t most likely not see blooms for 2 years but it works. Note: Check to see if your lilac has been grafted. Check the main trunk of the Lilac and see if there is a bump and difference in the bark.
That would be the graft shrubfell.buzzg: Arlington VA. Lilac bushes are some of the plants which need this for proper, orderly growth. You can start pruning them when they are years old, and have established themselves well. In their case, it is important not only to prune, but also to do so at the right time of the shrubfell.buzzg: Arlington VA.
At ' they are small compared to the common lilacs ('; perfect to sniff from a second floor window), but not tiny enough to be cast alongside Snow White.
S. meyeri grows to about 8', S. chinensis to nearly 15'. So if you want a dwarf lilac to remain less than 8' or a common lilac to be less than 20', plan to prune it shrubfell.buzzg: Arlington VA.