These wonderful plants will fill your yard with delicious scent.
When the lilacs begin to blossom, it is a solid indicator that spring has arrived for good. While many people only have a limited knowledge of common lilac (also known as French lilac) shrubs that can reach a height of 15 feet or more, there are now a lot more options available than there were fifty years ago. Some varieties that rebloom enhance the garden’s appeal the entire growing season.
How to Choose Lilacs
The common lilac is what you will most likely find when you go plant shopping. This traditional plant comes in a variety of cultivars and variations, each of which yields fragrant spring flowers in pink, purple, white, or even combinations of those hues. Common lilacs are typically the most fragrant variety of lilac and can grow to be rangy and large.
Rebloomers have arrived in the garden center thanks to recent introductions of hybrids between the common lilac and other shrub-type lilacs. Some of these more recent types are a little less fragrant, but they also tend to be smaller, bloom more frequently throughout the growing season, and have fewer powdery mildew issues.
The tree lilac is another common variety of lilac. It can grow to a height of around 20 feet and blooms with cream-colored flowers in the middle of the summer. Though it doesn’t require much trimming, keep in mind that the tree lilac is a tree, not a shrub.
Where to Plant Lilacs
Lilacs should be planted in full light (at least 6 to 8 hours per day), as too much shadow will prevent them from blooming. Lilacs also prefer moist, well-drained soil that is slightly alkaline.
When to Plant Lilacs
Before the ground freezes in the late fall is the ideal time to plant lilacs. After the earth thaws in the early spring, that is the next ideal period to plant. Lilacs will likely need to be planted as soon as you can locate them at the garden center, which is great; if you choose to do so during a warmer season, they might require additional watering.
How to Prepare the Soil for Planting Lilacs
A soil test should be performed prior to planting since lilacs thrive in slightly alkaline (6.5 to 7.0 pH), moist, well-drained soil that is high in organic matter. Lime must be added to raise the pH if it is below 5.5. It’s time to get the soil ready when you’ve obtained the ideal pH. Improve individual planting holes by mixing Miracle-Gro Garden Soil for Trees & Shrubs in a 50:50 ratio with the natural soil to give lilacs a nutrient-rich start. Iron and phosphorus are also present in this garden soil to promote root development and ward off leaf fading.
Which month is ideal for lilac planting?
Lilac trees grow best in the fall, just after the leaves have fallen and before the ground freezes. Lilacs can be planted in the spring before the buds open. However, springtime is a relatively brief season, therefore transplanting at this time is only advised in regions with really harsh winters.
What kind of area does a lilac shrub require?
Lilacs require a lot of space to grow, so that is the first planting rule. They will want a spot that is at least seven to eight feet broad for a hedge and 10 feet wide for a shrub.
Additionally, they require at least six hours of sun each day in order to bloom beautifully. Create an alkaline, well-drained soil. When planting, add a small amount of lime, and then apply it twice a year to keep the shrubs healthy.
Dig a hole for the plant about as deep as the pot or perhaps a little deeper so you can fill the hole with compost. To prepare the lilac roots for spreading out in their new home, remove it from the pot and score the roots. Backfill the hole after placing it in position. Add a little additional compost to the soil’s top layer for an extra boost of nutrients. Thoroughly water. The majority of lilacs are drought-resistant, so once the bush is established, you can let nature handle the watering.
Does lilac prefer shade or the sun?
Full light and well-drained soil are ideal for lilac growth. Lilacs won’t flower well if they are cultivated in partial sunlight or shade. The bushes can live for hundreds of years after they have established themselves in a new location, even if it may take them three to four years to do so. The plant’s growth may be impacted by the soil pH (alkalinity or acidity of the soil). A slightly acidic to alkaline soil is ideal for lilac growth. Because of their frequent high acidity, New England soils may need to be modified for the greatest lilac growth.
Pruning the blooming stem back to a set of leaves each year will stop seed formation and ensure that there will be an abundance of flowers. Good flowering years may be followed by terrible years if this is not done. Winter trimming will get rid of flower buds since they are generated in the summer before they blossom.
Branch out any diseased, damaged, or dead wood. Renewing pruning is necessary for tall, lanky, and poorly flowering plants; for three years, cut around one-third of the oldest stems at ground level each year. This promotes the development of strong new stems from the base. The plant should have fully recovered after three years, with flowers growing back to nose height.
Despite how resilient lilacs are, they nevertheless require plenty of water as they grow. Lilacs prefer soil that is both moist and well-draining.
Powdery mildew fungus (Microsphaera alni), lilac borer (Podosesia syringae), and scale are the most problematic lilac issues in our region (oyster-shell scale, Lepidosaphes ulmi and prunicola scale, Pseudaulacaspis prunicola). The leaves appear to have pale streaks of powdery mildew on them. Even though it is ugly, it is rarely severe in our environment. In stems and larger branches, often one to two feet above ground level, borers leave 1/8-inch holes. A modest infestation may be disregarded, but more than a few borers require professional diagnosis and treatment. While prunicola scale covers bark with a dusty white mass, oyster-shell scale is appropriately named since the pests resemble 1/8-inch oyster shells on the stems. Control adult scale by chopping off branches that are extensively infested; control microscopic baby “crawlers” with a strong hose spray of water (use a hand lens to see scale). Summer oil and dormant oil both work well.
Is it possible to grow lilac bushes close to a home?
Lilac roots aren’t thought to be invasive, so planting lilacs close to a building’s foundation poses no risk as long as you give them adequate room. The average root spread for lilac shrubs is 1.5 times that of the shrub’s width. In most cases, keeping objects away from the foundation at least 12 feet (4 meters) will prevent foundation damage.
Are lilacs contagious?
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.
How much water do lilacs require?
A traditional flower garden, outdoor space, or decorative pot should all contain lilac plants as they are a staple flowering shrub. Zones 3 through 8 are suitable for growing these fragrant shrubs, and they require very little maintenance. Lilacs need at least 6 hours per day of direct sunlight to produce their best flowers. Lilacs benefit from regular watering after initial planting, throughout active growth seasons (spring), and during prolonged dry spells. Lilacs are fairly drought tolerant once they are established.
It is advised to water your lilac plant once every 10 to 14 days from spring till blooming is finished. The ideal irrigation for lilacs is deep, infrequent watering. Make sure the planting space or container has good drainage. These plants don’t appreciate having their feet wet and won’t bloom if they are overwatered. By saturating air pockets with water and reducing soil oxygen levels, excessive water can strangle the lilac tree’s roots. The first indication that the lilac is overwatered is the plant wiggling.
What ought I should grow next to a lilac?
The wide variety of lilac companion plants may surprise you if you’re wondering what to plant with lilac bushes. Lilac bushes benefit from having plants that either compliment the lilacs or look beautiful next to them. These plants are known as companion plants.
Spring-flowering bulbs are among many gardeners’ favorite picks for companion planting with lilacs. They are an obvious choice for lilac bushes as companion plants because they bloom at the same time.
As lilac companion plants, you can fill in the area around your lilac shrub with a variety of lovely spring bulbs. Bulb plants like peonies, tulips, grape hyacinths, and daffodils grow and become a part of the environment. If you plant enough of them, the area won’t ever need to be weeded.
How far should a lilac bush be planted from a fence?
There are a few factors you should take into account when deciding where to put your lilac shrub for best results. These are them:
-Plant your lilac containers or bare roots at least 5 feet apart from one another to provide each plant enough room to spread its roots and adequate airflow.
For the same reason as above, try to plant lilac bushes a few feet away from a wall or fence. This shrub spreads out widely as it matures. Just like other shrubs, they can expand over several feet, so make arrangements accordingly.
-Place your lilac shrub where it will receive at least 6 hours per day of FULL SUN. This refers to daytime direct sunshine that isn’t filtered by other trees or any form of shade. Your lilac needs several hours of direct sunlight each day even if you live in the South and may need to protect it from the sun during the summer.
-Try to pick a location that is a little higher above the rest of your yard. This will contribute to ensuring proper drainage, which lilacs require to thrive.
Are lilacs suitable as a privacy hedge?
We purchased several lilac bushes at a nearby nursery a few weeks ago with the intention of creating a lilac hedge at our Farmhouse. The old-fashioned, unassuming feel of the lilac blooms I’ve used in my arrangements is ideal for our century-old farmhouse. Lilacs provide excellent wind or privacy barriers when planted in a row. Today, we’ll show you how we built the lilac hedge that runs beside our garden and provide a tip for working with landscape fabric. Let’s start now…
We get our “renowned Ellensburg breeze from the west side of our garden.” Here, the wind blows for a good portion of the remainder of the year in addition to the Spring. In order to provide a beautiful break, we chose to put a lilac hedge along the west fence line. Once it has grown in for a few years, it should do so. Additionally, it will enhance the garden entry with some lush greenery and, of course, a ton of gorgeous, fragrant blossoms in the spring. Because they are drought-tolerant, low-maintenance, pollinator-friendly, and deer-resistant, lilacs are a favorite of mine.
James MacFarlane and Minuet lilac varieties were interspersed in this hedge. Here’s some information on each:
James MacFarlane
We chose these types because of their size—we wanted them to be tall enough to block the wind without overshadowing the garden. Additionally, we chose them since the nursery had them in stock. Even if sticking with just one variety would result in a very attractive hedge, blending the varieties should extend the blooming season and offer some extra color.
Here is a video of the planting procedure, along with our top landscape fabric working advice!
Can lilacs withstand some shade?
Question:
Three years after being planted, a lilac has never flowered. Is there anything I can do to help the lilac bloom?
Answer:
Common or French hybrid lilac (Syringa vulgaris) cultivars may take several years (five or more) after planting to blossom. Before the bushes can flower, they must develop and become mature. Lilacs flower as soon as feasible when a good planting location is chosen and good cultural methods are used during the establishment phase.
Soil and Light Requirements
Lilacs thrive in full light and well-drained soil. At least six hours a day of direct sunlight should be provided for plants. Lilacs won’t bloom well if they are placed in partial shade.
It’s also crucial to provide good care over the first two or three years. Around each shrub, spread a 2- to 3-inch layer of mulch to retain soil moisture and keep weeds at bay. During dry conditions, water lilacs frequently. Additionally, enclose lilac shrubs with wire fencing in the fall to keep rabbits away from the plants’ foliage.
Even though proper cultural practices will promote plant growth, some of them may actually prevent flowers from blooming.
Fertilize Lightly
Lilacs don’t typically require fertilization. Lilacs can, however, be sparingly fertilized in the early spring. Heavy fertilizing may hinder flowering and encourage excessive vegetative growth.
Pruning at the right time is key
Flowering can also be impacted by pruning. Lilacs flower on growth from the previous year. Lilacs should be pruned as soon as they finish blooming in the spring. Many of the flower buds on lilac trees may be lost during winter, fall, or late summer pruning.
The common lilac typically doesn’t bloom until several years after planting, but a few other lilacs do. Syringa meyeri, the dwarf Korean lilac, Syringa patula ‘Miss Kim,’ and Syringa x prestoniae, the Preston lilac, all bloom within one to two years of being planted.
Lilacs can they get too much sun?
Lilacs should be planted where they will get at least 6 to 8 hours a day of direct sunshine because they love full sun. Interestingly, lilacs thrive in the heat of the sun throughout the growth season, but they flourish after a cold winter. Like all plants, lilacs are susceptible to overexposure to sunlight, which is shown by their curled, brown leaves and dried blossoms. Similar to how lilac blooms may not open if they are always in the shade and may become infected by fungi. The best course of action is to make sure they receive at least 6 hours of direct sunlight, ideally 8.