For more tips from our Gardening co-author, including how to reduce the number of flowers on your forsythia, read on! 2017;75:303-309. Many people prefer this wild look, and annual pruning is by no means mandatory. The largest stems have the thickest diameter. Forsythia, Forsythia spp. When you need to remove a branch, cut it back all the way to the ground. Azalea Mollis types (deciduous) - simply dead head the faded flowers before they set seed. It grows in a temperate climate. It is hardy to zone (UK) 5 and is not frost tender. Other Names: ... Keep them from getting too leggy or scraggly with regular pruning. ", http://www.amateurgardening.com/how-to/pruning-forsythia-the-right-way-3316, https://www.gardenfocused.co.uk/shrub/forsythia.php, consider supporting our work with a contribution to wikiHow. It grows 8 to 10 feet tall and 10 to 12 feet wide. It has an erect habit, with most canes growing upright. They are best pruned in a way that retains their natural arching shape. No pests to worry about with Forsythia. The best time for trimming forsythia is in the spring after the blooms fade. He noticed the plant in a Japanese garden and collected some specimens. If you notice any stems growing inward rather than outward, these should be pruned as well. Avoid pruning your forsythia when the plant is 1-3 years old. This way, they are large enough to support such a massive pruning. Among them, the western world first discovered Forsythia suspensa variety. Different Kinds of Forsythia Shrubs Forsythia is a small group of flowering shrubs, mostly originating in China, Korea and Japan, but there is also a European species, found in south-eastern Europe. Learn to use Zoom in this beginner-friendly course. As the Forsythia suspensa has a weeping habit, the way to go is to aim for the long arching branches from the top of he shrub. Pruning cuts well back into the growth. Most of the Forsythia group of shrubs - there are several popular types - can grow to around 2.4m tall though 1.8m is normal. But DO remember to do this as soon as possible after the Forsythia has finished blooming in mid-spring. By using our site, you agree to our. If you can’t reach the very middle of the shrub’s base, cut it to 3–4 in (7.6–10.2 cm) from the ground. Forsythia flowers on stems and buds made in the previous year. Details F. suspensa is a deciduous, arching shrub to 3m tall and wide. Supported height to 10ft (3m) or more. They are generally trouble free, though they are sometimes affected with honey fungus if it is prevalent in the area. In the 1800s, it was decided that the plant was not actually a lilac, and the Forsythia genus was created. Pruning Weeping Forsythia as a tall shrub, is slightly different to the normal Forsythia bush pruning. It will soon send out a mass of new shoots with which you can re-form your hedge. Avoid trimming your forsythia into a hedge. Providing that the pruning is a light trim, and not back hard into the stems, then there will be plenty of flowers the following year. If you really can’t stand to see another ad again, then please consider supporting our work with a contribution to wikiHow. Weeping Forsythia, Forsythia suspensa var. 7. At the same time - with an established shrub, it is a good idea to cut a few stems back down to within a few inches (cms) of the ground - say one out of every three stems pruned this way. These were placed in a jar and held pride of place on the sideboard - giving weeks of bright yellow 'cut flowers'! Neutral: On Jan 26, 2006, Gabrielle from (Zone 5a) wrote: I had Forsythia in an area that was a bit shady, and though it was lush looking, it never bloomed. Trimming the top of the stem off helps reduce the height of your plant while promoting a spot for new shoots to grow. Dead, bent, and split stems also change the look of your shrub. New growth will need to be trimmed periodically throughout the summer months. If you prune it correctly then it will favour you with masses of good sized flowers. The form varies depending on the variety. Noted for its weeping habit, Forsythia suspensa (Weeping Forsythia) is a gracefully arching deciduous shrub forming a large, upright-spreading, almost fountain-like shrub. The most important members of the Forsythia variety are Forsythia suspensa and Forsythia Viridissima. The stem will then re-grow during the year, to the same length as before. Forsythia viridissima 'Bronxensis' is a compact broadleaf form with pale yellow flowers. Thereafter, prune as above. Carl Peter Thunburg (1743-1828) was a Swedish surgeon and a botanist. Do this after your plants mature to about 5-6 years old. Best pruned when dormant. Pruning forsythia in late summer or fall will reduce the number of flowers in the spring since these shrubs bloom on old wood and set their flower buds soon after new … There are 11 references cited in this article, which can be found at the bottom of the page. Prune your forsythias once a year so your plants stay healthy and look great! Forsythia; Photos. % of people told us that this article helped them. This is a good idea if your bush is large and unruly and you want to tame it back. Weeping forsythia is native to China and popularly planted in North America for its arching branches that bear numerous, early-blooming, yellow flowers. Shin HS, Park SY, Song HG, Hwang E, Lee DG, Yi TH. They are slightly smaller, 1-1¼ in. Include your email address to get a message when this question is answered. If left to their own devices, forsythia bushes can take on a rather wild-looking shape, as branches shoot out in random directions. Griselinia - Can be cut back quite hard at start of Spring growing season. If the hedge gets too 'open' then don't be afraid to prune it hard in Early Summer. For best results, do this in late winter or early spring. Cutting the shrub back by shortening the branches destroys its natural shape, and it can take three years or more to recover its natural beauty. The pruning cut would be right at the bottom of the picture. Trimming forsythia while they are young will help control their shape and size. View abstract. Don't forget the lower cuts to force some basal growth. Therein lies another problem - the time and way in which it should be pruned. The raw fruit preparations have been shown effective against boils, skin infections, acne and inflammation. Making a forsythia hedge will change the arching habit of the plant and result in a tidier looking shrub that does a good job of hiding a fence. If your forsythia plant is under 5 years old, it’ll need little to no pruning. You may sacrifice a season of flowers, but your forsythia bush will look much better the next year. We use cookies to make wikiHow great. The most common components in Chinese herbal formulas for treating the common cold, influenza, and allergies is the forsythia fruit. Forsythias are ideal for a hedge. Forsythia suspensa. Pruning Weeping Forsythia. Forsythia suspensa (weeping forsythia) is a slender shrub with long arching branches, suitable for training as a climber. The new species was called Forsythia suspensa, in honor of William Forsythe, a Scottish botanist who was a founding member of the Royal Horticultural Society, and Director of … Weeping forsythia pruning is a snap. a/ Cut back flowered growths at least 1/3rd of the way back into the shrub, to a new young shoot; or a strong bud (Leaf joint). Prune the shrub in the spring—right after it has bloomed—in order to avoid cutting off next year’s buds, which will develop in the subsequent summer. The first forsythia discovered by a western scientist was Forsythia suspensa. All types of forsythia, regardless of growth style, need a deep pruning every three years or so, because the … Thanks to all authors for creating a page that has been read 45,191 times. Periodic Deep Pruning. They can also be the early spring centerpiece of a garden or foundation bed. Lauren Kurtz is a Naturalist and Horticultural Specialist. If you don’t remove low branches, they may start to root to the ground. wikiHow is where trusted research and expert knowledge come together. She earned a BA in Environmental and Sustainability Studies from Western Michigan University in 2014. Once your weeping, multi-stemmed Forsythia is establishes, then all of the pruning should be aimed at getting this waterfall of gold from the tops of the main stems. Keeping your forsythia open allows light and air into the middle of the shrub, which helps it grow healthy. 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