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.
What does a purple lilac represent?
Despite the fact that the species as a whole represents regeneration and confidence, each shade of lilac has an own meaning. Purple lilacs stand for spirituality, while white lilacs are symbolic of innocence and purity. Blooms that lean closer toward the blue end of the color wheel stand for joy and peace. Magenta lilacs stand for passion and love. Primrose, a golden type of lilac that was only introduced in 1949, is not frequently seen in American gardens and is not believed to have any symbolic significance.
Do lilacs grow naturally in North America?
You are selecting a shrub from our country’s past when you plant a lilac in your garden. For instance, Thomas Jefferson described his lilac planting technique in his Garden Book in 1767, and George Washington stated that he had transplanted existing lilacs in his garden on March 3, 1785. The lilacs at the Governor Wentworth home in Portsmouth, New Hampshire, which are said to have been planted around 1750, may be the oldest still growing ones in North America.
Although lilacs are a part of New England’s horticultural tradition, they are not native to North America, much like the region’s diverse population. Two of the more than 20 species of lilacs are from Europe, and the rest are from Asia. Eastern Europe is where the common lilac (Syringa vulgaris) first appeared. We now refer to these lilacs as “French hybrids” since this species and its hybrids were cultivated and chosen by French nurserymen so regularly that France came to be associated with exquisite lilacs.
Asia is home to the majority of lilac species, including two of the most well-liked varieties for modern landscapes, Syringa patula ‘Miss Kim’ and S. meyeri ‘Palibin. The clean growth habit of “Palibin” fits well in the contemporary garden, while the compact, later flowering “Miss Kim” is known for its potent smell.
Lilacs, which are renowned as plants for colder regions, require a period of cold-initiated hibernation before they begin to bloom. In the north temperate zone, which covers most of North America, Asia, and Europe, hybridizers produce fresh varieties of lilacs. Today, lilac varieties come from all over the world and go by many different names. The International Lilac Society, which oversees global registration, publishes the cultivar epithet (name), which is enclosed in single quotes.
Although the Arnold Arboretum has one of the oldest and largest lilac collections in North America, lilacs have existed on our grounds since the institution’s establishment in 1872. Lilac hedgerows were most likely planted by Benjamin Bussey soon after he purchased the property in 1806. On the east side of what is now known as the Explorers Garden on Bussey Hill, we reconstructed hedgerows using cuttings from the remainder of his lilac trees.
Our Lilac Sunday celebration, which is held on the second Sunday in May, has taken on a life of its own. Lilac Sunday attendance is difficult to predict, however one notable high was reportedly reached in 1941 when 43,000 people are supposed to have attended.
Why is the purple lilac the state flower of New Hampshire?
There are two state flowers in New Hampshire. The purple lilac blossom is the recognized state flower of New Hampshire. Despite not being a native of North America, this flower was brought to the continent from England as early as the middle of the 18th century. Since 1919, it has been the state flower of New Hampshire. The pink lady’s slipper, which was chosen as the state’s emblematic wildflower in 1991, is now the recognized wildflower of New Hampshire. It grows in New Hampshire’s forested areas and is a native flower to the region.
The purple lilac was chosen as New Hampshire’s official flower in 1919, defeating a wide range of other contenders. The apple bloom, the wood lily, and the aster were three other flowers that were encouraged by a variety of bills to be considered for state flowers that year. The mayflower, the buttercup, the goldenrod, the evening primrose, and the wild meadow rose were additional contenders. The purple lilac was ultimately chosen as the state flower of New Hampshire because it best exemplified the resilient nature of the state’s residents.
There are more than 1,000 different varieties of lilacs in the world, and lilac bushes have been known to live for hundreds of years. The bush was brought to America in the 1750s and is native to Asia and England. The blossom has a lovely fragrance and varied hues of white, purple, and pink. Although the purple lilac blossom is unique to the state of New Hampshire, the state of New York also refers to the lilac as its state flower.
Does Texas have lilac bushes?
Do you want a plant that thrives in the South and resembles the lilacs that bloom in the north? The Texas Lilac Vitex is that particular plant. The task of the SuperStar horticulturists starts here. The Texas Superstar plant initiative is special in that Texas A&M horticulturists identify and enhance the distinctive qualities of already well-known plants to increase their marketability and desirability to gardeners.
Mexican lavender, lilac chaste tree, hemp tree, sage tree, monk’s pepper, Indian spice, or Vitex are other names for Texas Lilac Vitex. Although it originated in China and India, it has long since become naturalized in some parts of the United States. Records show that Vitex has been grown in the United States since 1670.
Vitex is the ideal remedy for a SuperStar, for those of you looking. Hippocrates, Dioscorides, and Theophrast all cite the vitex agnus-castus as one of the ancient world’s recognized medicinal herbs. The widespread name “Monk’s Pepper” also alludes to the medieval notion that drinking potions derived from the berries helped monks uphold their chaste vows.
The optimal conditions for vitex growth are full sun and a position with good drainage. It thrives in both acidic and alkaline soil, and it may be grown everywhere in Texas. It thrives in warm, dry climates. Because of its durability, the Texas Department of Transportation plants Vitex in the medians of highways. It is a magnificent plant that attracts butterflies and is deer resistant in that deer won’t eat it, yet if it is allowed to grow to a very great size, they may harm it with their antlers.
Older varieties of Vitex featured tiny flower spikes that were light pink, off-white, lilac, or mauve in color. The majority of the flowers were little and ugly. Horticulturists have lately discovered and put to the test enhanced selections with spikes up to 8 to 12 inches long, like “Montrose Purple,” “LeCompte,” and “Shoal Creek.” These options will all be sold under the brand Texas Lilac Vitex.
These upgraded choices have bloom spikes that are not only big and gorgeous but also aromatic and give off long-lasting cut blooms. However, numerous aromatic black or dark-brown seeds are generated after the bloom spikes have given rise to several weeks of breathtaking splendor. These seeds not only stop an abundance of extra bloom spikes, but they may also, in some areas of the state, develop a seedling population that will not resemble the parent plant and end up being an annoyance.
After the first flowering, the spent bloom spikes should be swiftly trimmed off or deadheaded in order to encourage the shrub to bloom once more. This will solve the problem of seed production and the subsequent reduction of blooms. Why, then, haven’t people been doing it for the past 100 years if the solution is so straightforward? The Vitex’s rapid growth is the issue.
Many perennials are best used as annuals in Texas due to the favorable growth conditions there, whereas many shrubs or small trees are best used as perennials. The three extremely popular Texas SuperStarsfirebush, esperanza, and perennial hibiscus are examples of this. Every winter, perennial hibiscus and firebush wither to the ground throughout the majority of Texas. Every winter, Esperanza and the new Texas Lilac Vitex should be pruned down to the ground to keep the plant under control from season to season.
Plants will bloom again within six weeks of the removal of the seed pod or stalk, depending on the climate and cultural factors (fertilizer, water, region of the state, etc.). It is advisable to remove the seed pods before they solidify since the sooner the plant blooms again after the bloom petals fall, the better.
Plants should be cut to a few inches above the ground each winter in order to keep them in a suitable size range of six feet. If it is cut to the ground in the winter, it will regrow and blossom by June. Use a small chainsaw to trim the plant back if it became enormous during the previous growth season. Then, use hedge shears to deadhead the plant throughout the current growing season. Similar to the thinning of fruit crops to produce larger, high-quality fruit, cutting the plants back will make the spikes much longer but, of course, there will be less of them (at least with the initial cut-down). After spent blooms have been removed, three pounds of a slow-release lawn fertilizer formulation (19-5-9) per 100 square feet should be scattered around each plant to encourage quick re-blooming and longer flower spikes.
The ultimate nectar plant, buddleia or butterfly bush, has sparked renewed attention because to the butterfly frenzy. Unfortunately, most buddleias are unreliable perennials and perform poorly in the bulk of Texas’s landscapes. However, with the right care, the Texas Lilac Vitex could develop into the “buddleia of Texas.”
The new Texas Lilac Vitex is the plant for you if you want to try some traditional herbal remedies or want to use a drought-tolerant, pest-resistant plant to encourage the presence of butterflies in your backyard. Look it up!
Special Event: Are you interested in learning more about citrus farming in San Antonio? At the Schultze House Brown Bag Lunch program on Thursday, June 8 at noon in downtown HemisFair Park, 514 HemisFair Plaza, come say hello to Dr. Jerry Parsons. Enjoy exploring the cottage gardens as well.