Those rooted tips testify as to how easy it is to multiply forsythia. Mix them well and add all the dried herbs in one cup of water. Forsythia will tolerate most kinds of soil if it drains well. Keep the rooting medium moist, but not soggy. Forsythia is long-lived, but if your plant is old and is no longer blooming as robustly as it used to, you may want to sacrifice a year’s flowers and rejuvenate it by cutting the whole shrub back to the ground. How to Multiply Forsythia. Forsythia grows quickly, gaining as much as 24 inches in height a year, so plan ahead and put it where it will have plenty of room to grow 12 feet wide by 10 feet high (its typical mature size). Some recommended varieties are “Arnold’s Dwarf,” “Goldilocks” and “Gold Tide.” For even smaller gardens there is a flowering ground cover, Forsythia viridissima “Bronxensis,” which grows to only a foot high with a 2 to 3 foot spread. A border forsythia is a rather unpretentious flower shrub, which can easily be multiplied with small effort even by untrained hobby gardeners. A good way to maintain humidity is to enclose cuttings in a large plastic bag. Forsythia x intermedia 'Meadowlark' grows around 7 to 10 feet tall with a similar spread. Forsythia x intermedia 'Sunrise' is a compact shrub, growing around 4 to 6 feet tall and wide. The cuttings should be firm and not bend easily. When to Prune Forsythia. Although hardwood cuttings are typically 8 to 10 inches long, they may range from 2 to 24 inches long and 1/4 to 1 inch wide. Multiply forsythia - this is how it works with cuttings and subsidence. If you can't get enough of them, read this article to find out about propagating forsythia plants. Store the cuttings out of direct sunlight so heat won’t build up inside the bag. Forsythia is deciduous which means in the winter the branches are bare and the flowers are followed by small fresh green leaves. It flowers on old wood so pruning needs to be done soon after flowering before buds begin to form for next year’s flowers. Being a fast-growing shrub, the forsythia roots multiply fast and nearby foundations could be endangered. They look fantastic in groupings and shrub borders. Even people who can’t tell a cactus from a tulip can recognize Forsythia. You could expand your planting by tucking those rooted tips into the ground wherever you want new shrubs. Prune forsythia plants right after they finish blooming in the spring. Choose the oldest and tallest and cut them close to the ground, never high up or in the middle. This deciduous shrub is excellent for using as hedges or borders in garden arrangements. Forsythia is hardy from growing zones 5 to 9. Receive the Gardenista newsletter in your inbox daily. Experts advise removing about a third of the canes each year. Take 1 teaspoon each of dried Forsythia Suspensa flowers, Japanese Honeysuckle flowers, Lemon Balm leaves. This easy strategy can also be used on other blooming woody shrubs, including clematis, mock orange (Philadelphus spp.) Forsythia is can grow up to around 3 metres and is fully hardy. Annually: Remove dead branches and shape as needed after flowering. You can also use horticultural grade vermiculite alone, or mix it half and half with sand. Cover growing cuttings with straw or a cold frame for the first winter. Forsythia is widely known as a garden plant, but its dainty flowers may also be used as cutflower. Both are spring flowering shrubs with yellow flowers. Forsythia bursts into bloom in late winter, well ahead of most other early-season shrubs. Gardenista’s members-only directory of landscape architects and garden designers. It is that ubiquitous big shrub that often looks like an untidy bunch of sticks until early spring, when it suddenly reveals its raison d’être with an explosion of brilliant yellow flowers. You have several choices for a medium to root cuttings. The stems should snap easily when you bend them, and have both mature leaves and small, new leaves. These birds do hang out in the bush. Heavy soils do not work well -- they may contain diseases, requiring sterilization, and they tend to pack down, depriving cuttings of oxygen they need to develop roots. My mother in law has a forsythia that bloomed very nicely about 3 years ago, but since, just a few lower branches. They have a few drawbacks, one being that you will need room for them to grow well. The forsythia shrub typically reaches a height of up to 9 feet. Tag us using #gardenista. Can Lavender Grow Without Rooting Hormones? SOURCEBOOK FOR CONSIDERED LIVING It is that ubiquitous big shrub that often looks like an untidy bunch of sticks until early spring, when it suddenly reveals its raison d’être with an explosion of brilliant yellow flowers.