I pruned it heavily last fall as it was about six feet around and 3-4 feet tall. Click on the links below to learn more about these species in Fine Gardening‘s Plant Guide. $("#replyform-"+pid).hide(); The spikelike clusters of flowers that form above the foliage can be cut down when they're old and spent. Russian sage is a different story, while there are several cultivars none are sold as non reseeding. Trim this plant back to about 12 inches tall late in the fall, if you wish. A full-time writer since 2007, Axl J. Amistaadt is a DMS 2013 Outstanding Contributor Award recipient. Make sure to prune hard in … Do this six to eight weeks before the first expected frost date for your area. They thrive in full sun and dry soil, and are extremely drought-tolerant once established. Writer Bio. $("#"+thisid).slideDown(); (adsbygoogle = window.adsbygoogle || []).push({}); if ($(window).width() > 1024) { 1. Often what seems like the flowers on Russian sage are actually the calyx,a tube that protects the flowers from damage before they bloom. var pid = mySplit[1]; I recently planted 4 Russian Sage plants (they're about 3' high), and I was under the impression that I need to deadhead them, but am not sure how. $("#"+thisid).html(foo); The top of the plant will go dormant in the winter and you can prune it back then to keep the plants bushy and compact. PERSICARIA (Fleeceflower) - Rebloom? In the winter landscape it is a visual bonus, offering a ghostly, airy appearance on frosty mornings. if ($(window).width() < 1025) { This will help to strengthen the stems and prevent them from becoming floppy later in the season. Prune back old leaves to expose the flush of new growth at the base of the plant. In my zone 5 garden the top is almost always killed to some extent. Deadheading is an important part of encouraging repeated blooming in the current season, and to ensure the spirea remains vigorous and has abundant blooms in future years as well. function Frog_Reply(pid) { }); « Return to the Garden Knowledgebase Homepage. Deadheading is the term used for the removal of flowers from plants when they are fading or dead. Russian sage also requires absolutely no maintenance…no fertilizing, deadheading or dividing. In cold climates, the top herbaceous part can be killed off in winter. Why You Should Be Deadheading Your Flowers. Pruning is not part of Russian sage propagation, although taking tip … document.write(''); Remove seedheads and old leaves when the plant becomes unsightly. In the case of the Russian sage, the calyx is covered in coar… }, © 1972 - 2020 National Gardening Association, Times are presented in US Central Standard Time, Today's site banner is by arctangent and is called "Landscaping with grasses". The flowers are long lasting and you can enjoy them for months without deadheading. How to Deadhead Salvia. Russian Sage (Perovskia atriplicifolia) Sage (Salvia officinalis, Salvia elegans) Sunset Hyssop (Agastache rupestris) Thyme (Thymus vulgaris) Wormwood (Artemisia species) Subshrubs in Cold Climates. Leave some of the taller dead flower spires to add rich texture and winter interest to the casual landscape through the dormant period. This pretty perennial is also known as Russian Sage. It was a hot, sunny, sweaty day and I was weeding under the sage. My Nepeta ‘Walker’s Low’ is lovely though early July, but after that the blue flowers fade to gray and it doesn’t bring much to the party. Please reopen the question if you have additional concerns. Russian sage. This site is protected by reCAPTCHA and the Google No Cut stems back all the way when the flowers are all spent to promote more flowers over the extended bloom period. } This may also produce a second flush of blooms in warmer climates. function Frog_Cancel(pid) { When new spring growth emerges, cut the old stems back to just above the lowest set of leaves. This plant has deep yellow, tubular flowers that form a cluster of around 20 blooms in short spikes during summer. ... Russian Sage, or Perovskia 'Blue Spire,' is a woody, multi-stemmed plant that grows to 3' tall. Inside the tube is a clean white color. Plants that … $(document).ready(function(){ Deadheading won't extend the bloom for columbine but it will prevent reseeding - if that is a concern for you. Hardy in U.S. Department of Agriculture hardiness zones 5 through 9, the plant thrives best in zones 6 through 8. Otherwise, all that dead stuff is still there amongst the new growth. $("#"+thisid).hide(); With its lavish spray of silvery-green foliage against pale gray to white upright stems, Russian sage (Perovskia atriplicifolia) adds a casual touch of class to landscapes. These fragrant plants with their silvery gray foliage and spiky clusters of lavender flowers make a bold statement in any garden. Deadheading won't improve flowering but it will improve the plant's appearance. The brilliant blue flowers seem to sneak up on you, starting as a faint tint, moving through brilliance and fading back to a soft blue. e.preventDefault(); This will rejuvenate the plant, maintain a manageable size and produce heavier blooming on the new growth. You may deadhead if you don’t like the look, or leave spent flowers for winter interest.