When Is The Best Time To Replant Lilac Bushes

You have two options if you’re wondering when to transplant lilacs: spring or autumn. The majority of specialists advise taking action in spring. The best period is right after the plants blossom but before the summer heat really kicks in.

When may a lilac bush be moved without risk?

You’re trying to figure out if you can move your lilac bush. You’ll be glad to learn that lilac bushes are simple to move. Lilac bushes rank among the easiest plants to transplant successfully, according to our research. We will outline the procedures for effectively transplanting lilacs in this article.

The simplest lilac bushes to transplant are the young ones. They are able to quickly adapt to their new environment and put down new roots thanks to their strong, youthful growth. Can a larger Lilac shrub be moved with ease? Sure! Simply put, it requires a little more effort and “TLC” from beginning to end.

The greatest time to transplant lilacs is in the spring. In hot, dry conditions, they do not transplant well. Bushes should be transplanted after their blooming time and before the hot summer months.

It’s vital to remember that transplanting may have an impact on the following spring’s bloom. The bush will probably produce fewer blooms or none at all the next year. They concentrate on re-establishing their root system over the year following their transplant. The lilacs should blossom normally the next year.

How to Transplant Lilac Bushes

The fundamental steps for successfully transplanting lilac plants are as follows:

Lilacs require high, draining soil. When choosing the new location for your lilac bush, keep this in mind. If necessary, add a few inches to the soil’s elevation.

Make a decision regarding whether to cut the bush. Lilacs can have issues with this choice. We advise against trimming a lilac bush. Trimming plants allows the plant to concentrate on regrowing the root system, which goes against the logic of typical transplanting. However, pruning a lilac bush can mean cutting off the blossoms for the following year.

Dig far and deep to remove the plant from its present site. The transplant will be more successful and less traumatic if you have more roots.

In the new site, dig a hole. Create a hole that is roughly twice the size of the root system.

Put the lilac bush’s roots into the hole at the same depth they were at their previous position.

Water deeply and completely. When transplanting, we prefer to use a light solution of liquid fertilizer or seaweed fertilizer.

For three to four weeks, deeply water the soil every day to keep it moist but not soggy. Your roots will be helped to re-establish themselves as a result.

Where do lilacs thrive the most?

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.

Is summer a good time to transplant lilacs?

Plan to transplant your lilac in the late summer or fall, after the plant’s flowering season has ended entirely but before frozen ground makes digging impossible. Depending on where you reside, try to transplant as early as July and August or as late as October and November.

Can you plant a branch that has been cut off a lilac bush?

Lilac bushes might be difficult to grow from cuttings, but it is not impossible. Take cuttings from the fragile new growth of lilac bushes in the late spring or early summer. Rooting is less likely in mature growth. To enhance your chances of success, make many cuts.

When the weather is chilly and the plant is well-hydrated, take cuttings in the morning. Cut tender, fresh growth in lengths of 4 to 6 inches (10–15 cm). Leave two to three leaves on the cuttings at the top after removing the bottom leaves. The nodes—the locations where the leaves were linked to the stem—will produce roots.

Sand, perlite, and potting soil should be added to a pot. Make a small hole in the mixture with a stick or your pinky after briefly moistening it. Plant the cutting in the hole after dipping the bottom in rooting hormone. After that, lightly massage the potting mix around the cutting’s base to help it stand up straight.

If the leaves of the cuttings don’t touch, you can place many ones in the same pot. In celled nursery trays, cuttings can also be planted. Put the saucepan somewhere warm, like the top of a refrigerator. Right now, bright light is not necessary.

If necessary, water the cuttings every day to keep the potting mix moist but never waterlogged. To create a humid environment, you can place a clear plastic bag over the pot; however, you should periodically unzip the bag or poke a few holes in it to allow air circulation; otherwise, the cuttings risk rotting.

In one to two months, the cutting should start to take root, which is typically signaled by the emergence of robust new growth. At this stage, turn the pot to direct light that is bright and let the potting soil air dry for a little while before watering.

Move the lilacs to their permanent outdoor position after allowing them to mature and the roots to become well-established.

Are lilac bushes’ roots deep?

Lilac shrub roots are quite rare to penetrate the side of a foundation. Lilac roots typically become damaged when they get too close to the soil-level foundation’s base. Lilac roots can only penetrate shallow foundations because of their shallow root systems. It is unlikely that you will sustain harm if your foundation is deep.

Lilacs can also cause foundation damage if the soil is thick and expands when wet and contracts significantly when dry. When there is a drought, the feeder roots draw a lot of moisture from the soil at the tips, which causes it to drastically shrink and can lead to cracks in the foundation. After a heavy rain, the soil fills once more, but the foundation still has fissures. Regardless of the distance between the foundation and the shrub, damage to foundations is unlikely in instances when the soil is light and the foundation is deep.

There is a slight possibility that lilac roots will obstruct water and sewer lines. Lilac roots choose the easiest route to sources of nutrients and water. They are more likely to enter leaking water and sewage lines than sound pipes, though. However, there is little chance of damage if your lilac shrub is located 8 to 10 feet (2-3 m) from water and sewer lines, even if the pipes are cracked.

Lilac bushes can you separate them?

The lilac bushes should be divided when they stop blooming and the remaining flowers start to turn brown. The new shoots emerge at this time and can flourish for the upcoming flowering season. The optimum times to divide a lilac bush are in the spring or fall, when the flowers are at their peak. The dirt is typically damp and convenient to dig in during this time of year.

Early spring is an excellent time to split the bushes and produce new lilacs from the suckers due to the ideal weather and quick growth of the lilac suckers.

After the shrub has been divided, lilac shoots are the most straightforward to transplant. Lilac bushes can easily be divided with the help of a spade, a pair of pruners or pruning shears, and some rocks. The transplanted lilac bush also needs a lot of water, sunlight, fertile soil, and compost to grow and bloom properly.

Are lilacs suited for coffee grounds?

Lilac plants don’t require a lot of food or fertilizer. A 10-10-10 fertilizer mixture applied yearly in the early spring is what we advise. (The amounts of nitrogen, phosphorus, and potassium, or NPK as they are popularly known, are represented by the digits 10-10-10 in the formula.) Early spring fertilization of lilacs with a high phosphorus solution encourages blossoming.

Coffee grounds and grass clippings are also excellent sources of nitrogen. Use in moderation since an excess of nitrogen in the soil can lead to subpar blooms. The ideal soil conditions for lilacs are slightly alkaline (6.5–7.0 pH), wet, and well-drained. The soil may become more alkaline by adding bone meal to it. Use Miracle-Gro Shake ‘n Feed Flowering Trees & Shrubs Plant Food in the spring if you decide to feed your plant. Last but not least, lilac plants dislike acidic soil. Epsom salts can be used to encourage blossoming while the plant is dormant.

Should lilacs be deadheaded?

Dwarf lilacs that resemble ordinary lilacs include the “Palibin” Meyer lilac (Syringa meyeri “Palibin”) and the “Miss Kim” Manchurian lilac (Syringa pubescens ssp. patula “Miss Kim”). However, they hardly ever need pruning for maintenance, though you can do it sometimes for shape. They can also profit from deadheading, just like other lilac kinds.

The act of manually removing withered blossoms from a plant is known as deadheading. This encourages some plants to continue blooming. But only during the first several years of growth does deadheading seem to make lilacs bloom more effectively.

Within two to five years, young lilac plants should start blooming. Deadheading the spent blooms when the plants are young encourages the plant to focus its energy on developing new buds. It won’t require this stimulation once the plant has grown older, and you’ll probably have so many flowers that the task would take too long.

Your lilac will blossom beautifully some years, and less so other years, just like with any plant. Blooms frequently rely on the climate. You will be rewarded with an abundance of blossoms the next year if you have a beautiful summer during which strong new growth emerges. Less flowers will bloom in a summer with harsh weather. Therefore, if your lilac’s color changes from one year to the next, don’t get alarmed. The blossoms will come as long as the plant is strong and you continue with maintenance pruning.

What distinguishes a lilac bush from a lilac tree?

Lilac bushes (also known as shrubs) are characterized by their numerous woody stems that emerge from the plant’s base. In contrast, the trunk of the majority of lilac trees is the only woody stem. However, your neighborhood garden center might also sell shrub lilacs that have been grafted onto a single stem to give them the appearance of miniature trees.

The choice between a lilac tree and a lilac bush is typically determined by the amount of space available. Lilac bushes come in a range of sizes and can be placed in more compact areas of a garden. A lilac tree requires space to reach heights of 20 feet and widths of 15 feet. Both require sunlight to bloom well.

What type of soil prefer lilacs?

Did you know that the National Gardening Bureau has designated 2022 as the “Year of the Lilac”? They have a sweet, eerie aroma and are among the easiest shrubs for your landscaping to maintain that bloom in the spring. Find out how to plant, nurture, and prune your lilacs.

About Lilacs

Syringa vulgaris, or common lilac, is prized for its tenacity, dependability, and scent. Lilacs are so hardy that they can live for more than 100 years and frequently outlive the houses they were planted near.

This tiny, multi-stemmed deciduous shrub (or tree) has approximately ten canes and blooms at eye level. The height of a common lilac can range from 8 to 12 feet, depending on the cultivar. The aromatic flowers attract butterflies and make good cuttings.

There are lilac types that come in white, cream, and even pink and yellow, though the blooms are typically lilac/purple in hue (ranging from very pale to extremely dark). Flowers can be solitary or double in number.

Lilacs bloom in northern states from mid- to late spring for around two weeks. However, there are lilac varieties for early, mid, and late seasons that, when cultivated together, guarantee a consistent bloom for at least six weeks.

Lilacs do best in soil that is fertile, humus-rich, well-drained, and neutral to alkaline (at a pH near 7.0). Add compost to your soil to improve it if it is in bad condition. (Learn more about adding amendments to the soil and getting it ready for planting.) Lilacs don’t enjoy having their feet wet and won’t blossom if they are kept too moist, so make sure the planting area drains well.

Lilacs should be planted in full sun, which is defined as having at least six hours of sunlight each day, for the finest blooms.

How to Plant Lilacs

  • If you’re fortunate, a friend may offer you a sucker, or offshoot, of the plant’s root system. The sucker will first appear pitiful, but all you need to do is dig a hole, fill it with soil, and then insert the sucker. water next, and then wait. You’ll be rewarded with enormous, fragrant blossoms in 4 or 5 years.
  • Lilacs purchased from nurseries can also be planted easily. If the plant was cultivated in a container, spread its roots out as you plant it; if it was balled or burlapped, gently remove the covering and any rope before doing so. Set the plant 2 to 3 inches deeper than it was while it was growing in the nursery and cover the roots with topsoil. in water Then add more topsoil to the hole to finish it.
  • Depending on the kind, place multiple lilac bushes 5 to 15 feet apart.
  • Apply a layer of compost under the plant each spring, followed by a layer of mulch to keep moisture in and weeds under control.
  • If the weekly rainfall is less than 1 inch, water during the summer.
  • If lilacs receive too much fertilizer, they won’t bloom. In the late winter, they can manage a few 10-10-10, but no more.
  • Spread some lime and thoroughly composted manure around the base of your lilac bush once it has finished blooming. Remove suckers while you form the shrub by trimming it.

Pruning Lilacs

  • Since lilacs blossom on old wood, it’s important to prune in the spring immediately following their bloom. You risk removing the wood if you prune later in the summer. A word of advice: It’s time to prune if your lilac flower clusters are getting smaller!
  • After bloom each year, cut away any dead wood. Remove the oldest canes by pruning (down to the ground). Take out the tiny suckers. Reduce weak branches until a robust shoot remains. Reduce tall canes to eye level.
  • Remove one-third of the oldest canes (down to the ground) in year one, half of the remaining old wood in year two, and the remainder in year three if your lilac is very old and in poor condition. Cutting the entire plant back to a height of approximately 6 or 8 inches is another option for elderly lilacs. Although it sounds dramatic, lilacs are remarkably resilient. This option’s drawback is that it takes some time for the hair to grow back. The lilac will grow back bursting with blooms, so there will be less work and more reward.
  • It is important to understand that extreme trimming causes bloom loss for one to three years. For these reasons, a smart pruning program gives the bushes yearly attention in an effort to avoid making dramatic and severe cuts.

The Syringa vulgaris kind of lilacs is the most widely grown and fragrant:

  • Try the double magneta variety “Charles Joly” for an early bloom.
  • Lilacs in the middle of the season include “Monge,” a deep reddish purple, and “Firmament,” a delicate blue.
  • Miss Canada, a reddish pink, and Donald Wyman, a solitary purple, are two late-season beauties.

Syringa x hyacinthiflora, an early-flowering lilac cultivar, opens 7 to 19 days before those of the common lilac. Hummingbirds and butterflies are attracted to its fragrant blossoms.

The cutleaf lilac, a fragrant pale lavender, is one of the common lilacs that may flourish as far south as Zone 9. Common lilacs appreciate cold weather. The beautiful shrub Syringa patula ‘Miss Kim’ has light lilac-blue flowers that eventually become white.

There are tiny kinds for gardeners who simply don’t have the space for the conventional larger lilacs, particularly those in urban settings. Even in a container on your balcony or patio, they will grow.

  • ‘Baby Kim’ has a lovely rounded shape, only grows 2 to 3 feet high (and 3 feet wide), and has purple flowers that draw butterflies. Hardiness from Zones 3 to 8 extended.
  • Compact lilac ‘Little Lady’ (Syringa x) has dark pink buds that open to lilac-pink flowers and grows to be 4 to 5 feet tall and wide at maturity. Zones 2 to 7 are tough.
  • Syringa vulgaris cultivars “New Age Lavender” and “New Age White” were developed for mildew resistance and are quite compact, growing from 4 to 5 feet tall and wide. Hummingbirds and butterflies are drawn to their fragrant blossoms. Zone 4 hardy.