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.
Is it possible to grow a lilac shrub adjacent 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.
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 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.
Where shouldn’t lilac bushes be planted?
Avoid planting lilacs in areas that will receive more than a half-worth day’s of shade because they thrive in full sun. Make sure to give them room to expand when you plant them. To find out the mature plant’s height and spread, read the label on the plant.
Lilacs require sufficient drainage to thrive. The soil should have just enough moisture to support the root system while still allowing for free drainage after heavy rains.
Dig a hole that is about 8 inches in diameter and 12 inches deep to test the drainage before planting. Add water to the hole. Choose a different location if the water hasn’t drained after an hour.
How much time does a lilac shrub need to reach full maturity?
A lilac plant was given to me around seven years ago, and I planted it in our backyard. Each day, it receives several hours of direct sunlight. The leaves have always been a wholesome, mold-free green. It presently stands at about 7 feet. Every year, I eagerly anticipated the blossoms. The first blooms, consisting of two or three clusters of florets, appeared in the spring of 2011. There is only one this spring (now)! Can I do anything to ensure that the plant blooms the next spring?
A: One of the great things that gardeners look forward to each spring is the aroma of lilacs. I don’t think there’s much of a purpose to offer your lilacs significant yard space if they don’t flower. But there are a number of explanations for why they don’t blossom.
- Lilacs prefer a slightly alkaline soil (pH 6-7), even hydration, and lots of sunlight for optimal growth (at least 6 hours). Therefore, you might only get a few or no flowers if your soil is very acidic, it’s dry in the summer when the buds are growing, or your plant doesn’t get enough sun.
- Age: Lilac plants require time to develop before they start to bloom. Therefore, a young plant might not be mature enough to bloom if you have one.
Most plants begin to blossom after three to four years, while others might take up to seven. The first few years’ blooms will be rare, but they should become more numerous over time. If the plant you purchased was in bloom when you got it, then this is definitely not your fault.
- Pruning: Old wood is where lilacs bloom. They develop their buds during the summer so that by late January, they are completely developed and prepared to bloom.
So, two to three weeks after they bloom, or should have blossomed, is the ideal time to prune. Later trimming will reduce or stop flowering the following year. The plant can be kept healthy and flowering with yearly pruning. Remove any broken or dead branches first, then any old, woody ones, any that cross or rub, and then shape. Remove no more than one-third of the plant per year; nevertheless, if the plant is pruned on a three-year schedule, it will regenerate completely in just three brief springs.
- Overfeeding: Sometimes we solve one issue by causing another. Lilac typically doesn’t require further fertilizing. You will get a large, luxuriant plant but few, if any, blossoms if you feed your lilacs, especially if you use nitrogen-rich fertilizer.
Instead of flowers, nitrogen, the first number in a fertilizer indication, 10-5-5, encourages the growth of leaves.
- Transplant shock: Lilacs require some time to adapt. Even if a plant had blossoms when you got it, it is common for plants to take two or even three years to establish themselves and begin to bloom.
If none of the aforementioned scenarios apply to your lilac, you might want to offer the plant some stress, which is something we frequently do to wisteria that doesn’t blossom. A foot or so away from the lilac bush’s base, drive a sharp shovel’s blade into the ground. Cut the plant down, severing the roots on both sides.
I have two inquiries about tulips and daffodils. (1) What should I do with them after they’ve finished blooming? Do you want to base-cut them or deadhead them? (2) Where should I plant new flowers to replace them: immediately next to the bulbs? Do we remove all the green to make room for new blossoms in order to do this?
A: Although no one wants to hear it, the bare greens must be endured if you want to see the spring tulips and daffodils, even when they begin to look unsightly. The greens must stay, but you can tidy up the plants by trimming the flower stems to the ground. They shouldn’t be clipped, tied, or braided since they need to grow and store energy for the bloom the next year. The leaves can be removed from the bed and raked off once they have turned brown.
It is the same as putting perennials among the bulbs as far as that is concerned. Give them room to expand; take care not to disturb the bulbs when digging new planting holes; and, ideally, pick plants that will begin to grow just as the bulbs begin to fade. Daffodils and daylilies are a popular coupling that offers an excellent circumstance since the daylilies mature and cover the daffodil greens just as they begin to look pretty ragged.
Are lilacs an excellent privacy plant?
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!
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 complements lilac shrubs well?
Lilac bushes are also useful as trellises for vines that grow passionflowers, such as maypop. Maypop also produces huge, fringed flowers after the lilac blossoms have faded, as well as gorgeous, tasty fruit.
What kind of space 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.
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.