Read on to learn how to trim a lavender with woody stems. Join the RHS today and get 12 months for the price of 9. You can cut them back to any height you'd like and you will get new growth from that point. It won't hurt them at all. If you choose to prune in the spring, don’t wait too long. Suckers, which are sprouts from the roots of grafted plants, can eventually take over the selected cultivar if you don't remove them. If you don't have one on hand, a hand pruner will also work just fine. In its second year, plants are much larger, already producing some flowers, but not a lot. Heavier pruning wakes up dormant older stems to make them bloom and flower once again. You may be better off to replacing the bush. Whatever type of lavender you grow, don't prune it heavily late in the season. That’s why regular pruning is important to avoid bushes going woody and looking unsightly. For mature plants - Don’t hold back! 01:42. Cutting a … How to prune and harvest lavender. Just Don't prune them real late in the season because that's when you don't want to encourage new growth. Do you prune Hydrangea paniculata? But if you don't mind losing this spring's blooms, go ahead and prune. That encourages tender new growth which will be killed by winter cold, weakening the plant so it might not make it through another season. In its third year, lavender is considered to be a mature plant – large and rounded, producing a lot of flowers. If you can’t do it in early spring, just skip it, as doing it late in the spring may damage young flower buds that are forming at that time. Don't prune these particular trees in the winter, Winter's coming, so get busy in your garden, Master Gardeners: Know when to pick persimmons, Your California Privacy Rights/Privacy Policy. Another soft pruning time is in the early spring when I cut again just a bit – just a few centimeters. That’s why it should be cut back just a bit – few centimeters, just to keep it nice, rounded, bushy, and compact. A. Unpruned lavenders tend to become woody and have decreased blooms. If you want to keep your lavender flowers in a bundle, tie a rubber band around them before you cut them off. These are best pruned right after bloom in late spring. In this article, I will show you when and how to prune a lavender, how often to do it, and which tools to use for the best results. Pruning time is important, timing is seasonal pruning as well as pruning that depend of how old is your plant. Pruning this way shapes the plant and encourages new growth where the blooms are produced. This same rule may be applied to dead wood or branches when pruning Lavender bushes. The gardener office is staffed by volunteers trained by the University of California to answer gardeners' questions using information based on scientific research. The only way to keep this from happening is annual pruning. By Debra Knapke. Ideally, winter pruning should be skipped as generally pruning encourages plants to regrow and if winter is very cold, the new growth may not be successful and may be prone to frost. I prune my lavender at the harvest time which is here, where I live, in the middle of the summer (early July). If most of your lavender is gone woody, you should prune it again just up to the two sets of leaves above the woody part. Proper pruning and harvesting of lavender ensures the plant will have a longer lifespan, and the plant will keep producing flowers for a very long time. Lilacs flower on old growth, so if you prune before flowering you'll remove the flower buds. If your lavender … Don’t prune lavender until after the flowers are over. Once this happens, it’s almost impossible to save the plant. This is the year when the full harvest is expected so just before the buds start to open, harvest your lavender and at the same time prune it too. MORE: Master Gardeners: Know when to pick persimmons. You may have convinced me not to prune my tall crepe myrtles. Any time you prune them it encourages new growth. 3. These plants bloom well without spring pruning, but they'll respond well to pruning out dead, damaged or diseased wood. Removing any signs of the flower bud process will keep the plant in a vegetative cycle which encourages a larger, hardy strong lavender plant. In this case, leave pruning for after the harvest which is usually in the summer. If you don’t prune lavender regularly, the plants will get woody and will produce fewer flowers. This will help simulate more blooms this spring. 2. Lavender pruning- When is the best time to prune lavender? If you’re new to harvesting lavender and wondering what you need to do, don’t worry cause we’ve got you covered. Another important thing to consider when deciding when to prune lavender is to know that lavender plants need three years to become mature. For this stage, choose harvesting time (mid-summer or early autumn) to prune 8 to 10 centimeters above the woody bits. What happens if you don't prune lavender? I've done that many times. So pruning in year one and year two should not be the same and from year three onwards, you can prune in the same way. If it is several years old and has never been pruned, it may not survive heavy pruning. In its second year, some plants already blossom so they are ready for pruning. If you want to know what to do with woody lavender, understand that pruning woody lavender plants can often restore them to their former glory. Early spring is good for a second pruning, which should be much softer than pruning in the harvest time. If you have lavender plants that were not pruned back last fall, and if you are located in Western Washington, there is still time to prune your lavender back for the spring. I don’t store autumn leaves for composting. Hydrangea paniculata, sometimes called Hardy Hydrangea, also blooms on new wood. If the lavender flowers were not removed after bloom you can cut them off now as long as there is no chance of rain for a few days. In this article, I will show you when and how to prune a lavender, how often to do it, and which tools to use for the best results. They’re so tall I didn’t realize they had begun to bloom since the blooms are at the very top, probably at least 20 feet high. Don’t prune your lavender after late August. New shoots will quickly appear at the base of the bush and these will have enough time to grow and harden up before winter comes. The variety of lavender will determine how much you can prune off the lavender bush without damaging it. I recommend watering potted lavenders even if there has been rainfall within a two week period as pots will dry out quicker as they are above ground. If you missed all the above times, winter pruning is also an option. 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