Both bushes and trees can sprout from lilacs. You’d be excused for being perplexed if you saw a lilac in tree shape because the majority of lilacs marketed nowadays are shrubs.
Lilac bushes come in hundreds of different kinds, but Syringa reticulata is the only species of lilac tree. You didn’t see them very much before. Due in part to the fact that they remain relatively small for a tree, more and more landscapers and homeowners are now looking for them.
Lilac bushes can they grow into trees?
You require a little tree to serve as the garden’s centerpiece. Instead, pick a shrub and utilize basic pruning methods to turn it from a bush into a lovely tree. You can produce a unique plant that adds a touch of class to your yard when you prune a shrub into a little tree. For this method to work, you don’t even need to be an expert in plants or good with pruners.
The greatest shrubs to grow into trees are those that don’t normally produce a lot of suckers from the roots (suckers). Numerous varieties of shrubs, from floral beauties to shrubs with fall color, are included in this group. Lilac, flowering quince, panicle hydrangea (Hydrangea paniculata), and spring-blooming star magnolia are some examples of flowering shrubs that can grow into trees (Magnolia stellata).
Many berried bushes grow into lovely little trees that provide the garden winter appeal. Pyracantha, Siebold viburnum (Viburnum sieboldii), and sea buckthorn are members of this group (Hippophae rhamnoides). Another excellent shrub to grow into a small tree is cotoneaster. Choose upright cotoneaster cultivars like Cotoneaster divaricatus or Peking cotoneaster (Cotoneaster ludicus) for the best results.
Sucker-producing shrubs are the most challenging to grow into trees. These suckers typically grow in small thickets when left to their own devices. Elderberry, chokecherry, and red twig dogwood are shrubs that can produce thickets. These shrubs can be trained to grow into tiny trees; however, it could require a bit more work.
Pruning suckering shrubs into multi-stemmed trees, where you choose a number of upright stems to act as trunks, is an option. For a beautiful multi-stemmed little tree, try the bottlebrush poinciana or pineapple guava in warmer climates. Consider witch hazel, serviceberry, or imitation orange in regions with chilly winters.
Smaller plants are simpler to teach when selecting shrubs to grow into trees. Gardening isn’t just about growing bushes into trees right away. It takes years to complete the process. Start with a plant that is around a year old if you wish to train your shrub into a tiny tree with a single trunk. One to two gallons may be used for a container. When grown as a multi-trunked tree, more mature shrubs produce better results.
Prior to planting, decide which stem will serve as the tree’s trunk. Remove branches from the shrub’s bottom third after planting. Place a sturdy stake next to the main stem, such as a tree stake or a chunk of rebar. On a tree with multiple stems, place a stake for each one. Fix the stem to the base with a tie. Rub out or trim any little sprouts that develop along the trunk as the shrub grows.
Remove lower branches each spring so that the trunk makes up one-third of the tree’s height. Till the tree reaches the desired height, repeat this technique every spring. Then, reduce the canopy to three to five major branches, then prune those branches back by three to five inches to promote branching. Thin the canopy as necessary and cut off any branches that sprout along the trunk to maintain your shrub-tree.
Identification hints
The dark, silky, hairless, heart-shaped leaves of the common lilac are grouped in opposite pairs, and the twigs have opposite, lateral buds rather than a huge terminal bud (so branches do not grow straight out). Several closely related species, such as the “Chinese” lilac (Syringa chinensis), have leaves that taper at the base. Syringa oblata, for example, has rounder leaves that are just as wide as long.
Did you know?
Common lilacs are loved all over the world and were consciously introduced to most sites, so if you locate one in an apparently isolated area, you are probably at a spot where people formerly resided. Lilacs come in countless cultivated kinds! The aromatic blossoms draw both humans and pollinators.
How ought a lilac tree to look?
With the right care and methods, growing a lilac tree in your garden is surprisingly simple. A huge multi-stemmed deciduous tree or shrub known as a lilac has fragrant conical clusters of pink, white, or purple flowers. Late spring is when lilac trees blossom, and the blooms can last up to four weeks. Their thick foliage and big, heart-shaped leaves make for the perfect privacy fence. Once they are established in the environment, lilac trees are also rather simple to maintain.
Lilac shrubs are typically thought of being low-maintenance plants. But let’s say you want to plant a stunning single-stem lilac tree in your garden setting. If so, some pruning will be necessary to help the blossoming tree get started. Any attempt, though, is worthwhile. An mature lilac tree will fill your front or backyard with color and scent every year as it blooms profusely.
The piece serves as a comprehensive care manual for cultivating a lilac tree in your yard. If you wish to develop a sturdy tree in your garden, you will also learn about the best lilac plants to grow.
Zones:
The majority of lilac types can withstand cold temperatures in zones 3 to 8, although others, like Scentara Double Blue, can (S. hyacinthiflora). There are some cultivars that don’t require a winter chill, like as “Lavender Lady” (S. vulgaris), which is heat tolerant to zone 9. The majority of others do need a wintertime period of cold and dormancy.
Height/Spread:
The common lilac, Syringa vulgaris, reaches heights of 12 to 15 feet and widths of 10 to 12 feet. The majority of dwarf types are smaller and reach maturity at 4 to 6 feet tall and 3 to 7 feet broad. Syringa reticulata, often known as the Japanese tree lilac, grows up to 30 feet tall.
Bloom Time:
The majority bloom in late May, however there are new re-blooming kinds, such the Bloomerang series, as well as early spring, mid-spring, and late-season blooming variants.
Color:
The common lilac (Syringa vulgaris) has gray to gray-brown bark, purple blooms, and dark gray-green to blue-green foliage (with no fall color change). But there are actually seven recognized hues for lilac flowers: white, violet, blue, lavender, pink, magenta, and purple, with several variations of each hue.
Other:
True lilacs, such as the California, mountain, and wild lilacs, are truly members of the genus Ceanothus. Butterfly bushes are frequently referred to as summer lilacs, especially sterile and non-invasive varieties.
How do lilac trees grow?
The lilac is a multi-stemmed, deciduous shrub with an erratic, rounded shape. When young, it grows quickly, but as it ages, its growth slows to roughly one foot every year. The stems’ sturdy wood has a dark gray to gray-brown color. The leaves are light green underneath and dark green to blue-green above. The clusters of four petal blooms, which come in lilac, light purple, or lavender hues, bloom in April or May. They have a strong fragrance. Although the lilac thrives best in sunny locations, it cannot stand hot, muggy weather. It requires moist, well-drained soil that is neutral or just a little bit alkaline in pH. Peat or leaf mold can be added to the soil as a supplement. As soon as they start to fade, old flowers should be removed. Lilacs should be pruned as soon as they finish blooming. Pruning the shrub is preferred since it will highlight the medium-aged wood, which will still contribute to the plant’s good size and produce nice blooms. Remove a third of the earliest stems at ground level each year to accomplish this. Any remedial trimming, like removing competing branches or sucker growth, can be done concurrently. Pruning older lilacs as small, multiple-branched trees will highlight a few massive, old trunks while removing sucker growth and making them a focal point of the landscape. The shrub can also be pruned into a tree with a single stem. Lilacs that are overgrown can be pruned to a few inches above the surface. They will bloom once more in three to four years, Depending on the mature height, space your plants 3–4 feet apart if you want a hedge.
What do the leaves of a lilac bush look like?
Syringa vulgaris, sometimes known as common lilac, is a deciduous shrub with springtime blooms. Along with other decorative plants like ash trees, forsythia shrubs, and privet hedges, they belong to the olive family. The pleasant scents of their blossoms are a standout feature of many lilac types. The blooms occur in panicles or branching clusters. Only a third of an inch is the size of each blossom. The leaves are 2 to 5 inches long and range in color from gray-green to blue-green; they do not change color in the fall. This shrub’s bark is gray to grayish brown. Before the ground freezes in the early fall is the ideal time to grow lilac bushes. They grow between one and two feet each year at a moderate rate.
Do lilac trees come in a variety of varieties?
Even horticulturists who are knowledgeable about the 28 lilac species occasionally struggle to distinguish between different varieties of the plant. However, other species may be better suited to your garden and landscape due to certain characteristics. You might wish to think about the following lilac varieties for your garden:
- The most well-known kind of lilac is the common lilac (Syringa vulgaris). The flowers are fragrant and have a lilac tint. The average height of a common lilac is 20 feet (6 m.).
- The Persian lilac (S. persica) cultivar reaches a height of three meters (10 feet). The flowers are about half as wide as regular lilacs and have a faint lilac tint. A wonderful option for an informal hedge is Persian lilac.
- Dwarf Korean lilacs (S. palebinina) are a wonderful choice for an informal hedge because they only reach a height of 4 feet (1 m). The blossoms look like typical lilacs.
- Tree lilacs (S. amurensis): This cultivar produces off-white flowers and develops into a 30 foot (9 m) tree. A kind of tree lilac with peculiar, extremely pale yellow blossoms is known as the Japanese tree lilac (S. amurensis ‘Japonica’).
- One of the nicest types to utilize as a summer screen or hedge is the Chinese lilac (S. chinensis). It quickly expands to grow to a height of 8 to 12 feet (2-4 m.). Chinese lilacs are a hybrid of Persian and common lilacs. It is also known as Rouen lilac.
- Late lilac (S. villosa), sometimes known as Himalayan lilac, with rose-like blooms. It can reach a height of 10 feet (3 m.). A species that is similar but with darker flowers is the hungarian lilac (S. josikaea).
Because they require freezing winter temperatures to break dormancy and produce blossoms, many common lilac cultivars are only cultivated in USDA plant hardiness zones 3 or 4 through 7.
A botanist in southern California created the Descanso hybrid lilac variety as a result of his lilac enmity. Despite the warm winters in southern California, these hybrids consistently flourish and bloom. The following are some of the top Descanso hybrids:
What hue do lilac bushes have?
Lilacs are the ideal way to usher in spring after a protracted, gloomy winter. They have a rich smell that is admired all over the world and draw a large number of pollinators. The Syringa genus of garden lilacs contains various species, each with a variety of cultivars. They are all members of the Oleaceae family, which also includes olive, jasmine, white fringe, and ash.
With the exception of pruning to keep plants at a reasonable size, almost all of these flowering woody plants are extraordinarily hardy, simple to grow, and long-lived. Immediately the blooms have gone, pruning is carried out. When lilacs are planted in full sun, they flourish and yield the most blossoms.
Although the bloom season varies significantly depending on the species and variety, lilacs normally bloom in the middle to end of April. However, a variety of cultivars offer other color options. The rich clusters of flowers typically range in color from deep purple to pink. Lilacs are appropriate for almost any full sun garden thanks to decades of professional and amateur breeding work.
Tip
Most lilacs reproduce through sucking. Suckers are brisk vertical growths that begin at a plant’s roots or lower main stem. This can be helpful if you want the lilac to grow and develop into a thicket for screening, but if you want the shrub to stay contained, you’ll need to constantly remove the suckers.
Do lilac bushes need to be pruned?
All lilacs should generally be clipped right away in the spring after they have finished blooming. Lilacs set their flower buds for the following year immediately after the current year’s flowers have faded, therefore trimming later in the summer or fall will result in the removal of most or all of the blossoms for the following year. The larger common lilacs as well as the shorter or more “shrub like” cultivars are all subject to this timing guideline. While the “when” of lilac trimming is rather simple, the “how” is a little more difficult. For the time being, we’ll refer to lilac pruning as either maintenance pruning or rejuvenation pruning to keep things simple.
Are lilac trees invasive?
Ballistichory, also known as ballistic dispersion, is a unique way that lilacs disperse their seeds that causes the seeds to fly out in a large arc around the plant. The architecture of the seed pod produces this explosive effect by building stress in the woody fibers as they dry, which causes them to break at a planned weak point and fold back to release the seeds. The lilac can now spread its own seeds without the aid of wind or animals thanks to this technique.
What ought to I understand about lilac trees?
Here are seven interesting facts about these beloved garden plants to honor the lilac bushes that are currently putting on a magnificent, fragrant display.
Kate Chopin described how Sister Agathe would frequently turn to the window during the day when the aroma of lilac blossoms started to fill the air, wearing the joyful, beatific expression that simple, pure souls wear as they wait for the arrival of people they love.
We could not have put it more succinctly. Here are seven things to know about cultivating and caring for these beloved garden plants, in honor of the lilac bushes that are putting on their magnificent, fragrant display at this time of year.
| Climate for Lilacs
While some lilac types may survive warmer environments, most prefer chilly weather (zones 37). They require a period of hibernation before they can bloom, which cold winters cause. Lilac plants typically bloom in the spring and only for two weeks, though the exact timing depends on the kind and location.
| Sun, Soil and Fertilizer
P. Allen Smith, a landscape and garden designer from Arkansas, lists lilac bushes among his top 15 favorite scented plants for the yard. He said to Flower, “Plants should be treated with a general fertilizer in early spring and then again after the bloom cycle. Lilacs bloom best when planted in full sun and well-drained, alkaline soil. For your early spring feeding, switch the general fertilizer out for super phosphate or another fertilizer heavy in phosphorus to promote blooms.
Mara Tyler of the Farm at Oxford in Pennsylvania, a grower of flowers, also provided her lilac-growing advice, beginning with full sun. Don’t overfeed the lilac, she advised, but we do give it a dose of compost and an organic local fertilizer in the ratio of 3-5-4 every year. We want to encourage blossoms rather than foliage growth because we want our lilacs to produce blooms. Additionally, it may take 34 years after planting tiny lilac pups before we can actually harvest from a bush. The first few years they grow more slowly, but around year 45 it seems like their growth really takes off.
The best time of year to plant lilac bushes, according to Tyler, is: “Whenever we have the time, we plant in the spring or the fall. Care, however, is influenced by the time you plant.” As with any plant, if you plant in the spring, be careful to water it regularly throughout the summer’s heat. The plants typically settle in well in the fall thanks to drainage from winter showers or snowfall.
| Pruning Lilacs
After they finish blooming, lilac bushes should be pruned and shaped since they produce buds on old wood. You run the danger of removing the blossoms for the following year, Tyler warned.
| Varieties of Lilac Bushes
While there are countless lilac types to choose from, here are a few to take into account if you have certain needs.
- Plant “Miss Kim” or “Blue Skies” in zones 8 or other warmer areas.
- Consider “Excel,” which puts on its major display between February and March, or possibly “Charles Joly” when thinking of early bloomers.
- recurring blooms: Select “Josee.”
| European Descent
North America does not have any native lilac bushes. Eastern European mountains in Bulgaria, Croatia, Slovakia, the Czech Republic, Hungary, and Romania are where the Common Lilac first appeared. The species was raised by the Turks for many years. Lilac plants eventually made their way to Vienna and Paris in the 1500s. Since they created so many different types, the common lilac is frequently referred to as a French hybrid or just a French lilac. Lilac bushes now adorn the gardens of George Washington and Thomas Jefferson after these European species finally made the voyage to the New World.
If you cut flowers from your lilac bushes for an arrangement, you may keep the flowers fresher longer by misting the petals, which can absorb water, and changing the water in the vases every day.
| A Whole Island of Lilacs
On Mackinac Island in Michigan, there are two additional species in addition to more than 100 types of common lilacs ” (pronounced “Mackinaw). The best growing conditions are cold winters and sunny, warm summers with enough precipitation. And the island’s well-drained soil, which has a limestone rock basis, is perfect for lilacs.
The oldest lilac bushes on Mackinac date back to the 1870s and can reach heights of 20 feet and a diameter of 27 inches “Lavander trees Since 1949, the town has celebrated the beginning of the June flowering season with a 10-day Lilac Festival. Even the Lilac Festival Queen and the Grand Parade are present. Plan to travel around this small town by foot, a bicycle, or a horse. In 1898, vehicles were outlawed.
Bonus | A Book of Lilacs
What better way to mark the passing of the seasons than with the flower that seems to herald the arrival of summer? For many years, lilacs have been a favorite flower and a source of creativity for painters like Claude Monet and Vincent van Gogh. In the eighth volume of the Gibbs Smith flower series, Lilacs: Beautiful Varieties for Home and Garden (Gibbs Smith, April 2022), Naomi Slade provides straightforward gardening advice to show that anyone can cultivate these vivid blooms. Beautiful images by Georgianna Lane also provide a ton of visual inspiration.