These lilacs belong to your grandmother. One or two flower types, a wide range of hues, and heavenly scents are only a few advantages of French hybrids. Their challenges include a higher risk of contracting diseases, erratic habits, and foliage that ages by the end of summer.
You have to only care about the blossoms if you want to enjoy this plant. Violet, Blue, Purple, Magenta, Lilac, Pink, White, and Yellow are the colour categories used to categorise flowers. They come in single form with only four petals, double, or clustered forms with eight or more petals. Portland often experiences bloom in late April or early May.
When do lilacs flower?
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 fertiliser, 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 programme 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.
Does Oregon have good lilac growth?
Lilacs are bushes that resemble trees, but in April and May, they burst into colour and scent, earning them a place among the riches of spring.
Lilacs, according to some, are the symbol of spring. No surprise. They can be a short joy, like a warm spring day in the Willamette Valley, with their strong fragrance and sprays of vibrant blooms. Only two to four weeks pass while the common lilac (Syringa vulgaris) is in full bloom. But according to Harold Greer of Greer Gardens, these tough, tree-like shrubs thrive in the Willamette Valley and their mid-spring burst of beauty and scent merit a place in the garden.
About 17 cultivars are offered in the Greer Gardens catalogue, with bloom hues ranging from white to deep purple, yellow, and, well, lilac.
By growing a few different types, gardeners could even be able to extend the duration of lilac blooms, according to Greer. His favourites include “Sensation,” which has deep purple, single flowers with white edges, “Primrose,” which is the only known variety of pale yellow or cream, and “Miss Kim,” a Korean cultivar of Syringa pubescens that only reaches heights of 5 feet and a width of 5 feet. It has very fragrant single blossoms that bud deep purple and mature to an unusual icy blue.
According to Stephanie Scandlyn, retail manager at Bloomer’s Nursery in Eugene, lilacs are not difficult to grow. According to her, most will grow to be 8 to 10 feet tall and 6 to 8 feet wide. Therefore, it’s crucial to plant them with plenty of room. To blossom well, they will require well-drained soil and substantial amounts of daily sun.
Blight issues can arise in cold, wet springs, but Greer notes that nurseries are typically more at risk. A lilac is less vulnerable once it is large enough to plant in the garden, according to him. Lilacs can endure dry circumstances once established but require a lot of water while in bloom (approximately 1 inch per week).
Although many gardeners choose to buy and plant lilacs in the spring when they can see the flower colour, Scandlyn advises that the optimum time to do so is in the fall. According to Scandlyn, Bloomer’s offers roughly seven different kinds, the majority of which are purple with some white. It will take two to three years for plants that are 2-3 feet tall when they are bought and planted to reestablish themselves and begin to blossom.
Only 30 minutes north of Portland, in Woodland, Washington, is a Northwest icon for lilac enthusiasts and budding gardeners. The Hulda Klager Lilac Gardens are a tribute to an extraordinary woman who started lilac hybridization on her ancestors’ farm in the early 1900s. According to volunteer Rebecca Roberts, the 4-acre property, a National Historic Landmark, organises “Lilac Days” every year to showcase its 450 lilac bushes in a “garden fairyland.”
At the age of 2, Hulda Klager moved to Woodland with her family after leaving Germany. According to Roberts, she started breeding lilacs after Luther Burbank, eventually producing more than 100 different types. The Hulda Klager Lilac Society now cares for the historic home and gardens and carries on Klager’s 1920 practise of giving annual garden tours in order to protect her gardens and heritage.
Only during Lilac Days, which this year run from April 17 to May 9, may guests view the farmhouse, according to Roberts. The grounds are accessible all year long. Klager’s parents constructed the home in 1880, and it is in “fantastic shape,” according to her, with period furniture that include many of Klager’s personal belongings. The only time of year to visit the gift shop, which sells a number of the more popular, historically significant cultivars created by Klager, is during Lilac Days. The gardens’ and gift shop’s daily hours are 10 a.m. to 4 p.m.
Lilacs can they grow in the Pacific Northwest?
There are various varieties of California lilac for use in landscaping. While some are low-growing, compact groundcovers that rarely grow higher than 6 inches (15 cm), others are upright bushes that reach heights of 8 or 9 feet (2 to 2.5 metres). The vivid to light blue flowers on evergreen plants with small to medium-sized glossy green leaves serve as a decorative accent. In addition to Oregon, California, and Washington, several species of California lilac can also be found as far away as Guatemala.
The Pacific Northwest is home to 12 different species of Ceanothus. For the greatest flowers, these plants demand dry soil and full sun. If you reside in a region where deer are present, protection is necessary because they enjoy California lilac particularly.
The lustrous foliage of ceanothus plants has three parallel leaf veins that give them their distinctive look. While smaller leafed shrubs have serrated, almost holly-like leaves, larger foliaged plants have whole margins.
One of the crucial characteristics of California lilac is its capacity to fix nitrogen in the soil, which benefits both home gardeners and the environment. The real star of the show are the flowers. While the majority have deep blue flowers in terminal clusters, certain varieties may have lighter blue, lavender, or even white flowers.
How many times do lilacs bloom each season?
The late lilac is the leading contender for a long-lasting lilac that will bloom profusely throughout the warmer months of the year (Syringa villosa). As its name suggests, it blooms later than other types and produces fragrant white, pink, rosy lilac, violet, and even crimson blossoms. This lilac bush only has one summer bloom and enjoys direct sunlight.
Consider a reblooming lilac for your garden if you want consistent flowers. Lilacs that rebloom will first bloom in the spring, then rest until summertime when they will blossom once more. After their spring rest, certain types, such as the Bloomerang dark purple, will continue to bloom until the fall. Look for the Josee reblooming lilac (Syringa Josee), which intermittently flowers throughout the summer and into the fall, if you live in a warmer climate.
Lilacs bloom twice a year, right?
Compared to other lilac trees, bloomerang lilac trees are more compact, reaching a short height of 4-6 feet tall and a spread of 4-6 feet, giving them a pleasing, rounded appearance. Their long, arched branches bear their veined leaves, which are bright green for the majority of the year until turning yellow in the fall.
The characteristic 4-petaled, 4-6 inch deep lilac-purple blooms on bloomerang lilac trees appear starting in May, cease blooming in June, and then return in July through the first frost of the year.
Specifications
With tall, arched branches, a compact and rounded shape, and rich green foliage that turn golden in the fall. Four spread petals, 4-6 inch, lilac-purple flowers that bloom in the spring and later in the summer.
Why hasn’t my lilac bush bloomed?
A. There are a number of potential causes for your lilac’s failure to blossom. Lack of sufficient sunlight is the main culprit. Lilacs (Syringa) should be planted in an area with at least six hours of direct, bright sunlight per day. They can withstand a wide range of moisture levels as long as they are grown in soil with good drainage.
If your lilac is clipped at the wrong time of year, it might not blossom for another reason. Lilacs bloom in the spring on the growth from the previous year, and soon after, they begin to form the buds for the following year. Within a few weeks of the plant blooming, pruning must be done simultaneously with the removal of the wasted flowers in order to prevent the removal of the buds for the following year. A late freeze can harm flower buds on types that bloom early.
Lilacs have a tendency to mature into overgrown, leggy shrubs with minimal foliage at the bottom. When this occurs, it might be required to prune them to within 12 inches of the ground in order to completely rejuvenate them. When the shrubs are dormant in late winter, this should be done. Lilacs benefit from this repair, although their blooming cycle will be hampered for at least one season. Lilacs can receive a rejuvenation pruning over a two-year period to stop the interruption of bloom cycles. Half of the shrub’s stems should be hard pruned the first year, and the remaining stems the following year.
Lilacs do not consume a lot of food. Excessive fertilisation, particularly nitrogen fertiliser, can frequently promote luxuriant vegetative growth at the expense of flower development. A lilac’s failure to bloom could potentially be due to its proximity to turf that receives frequent fertilisation.