The milder winters of South Louisiana, on the other hand, make it easier to produce delicate, tropical flora. The two plants I’ve probably received the most questions about over the years are lilacs and peonies. These plants are extremely sought-after and simple to grow in the north.
Can lilacs be grown in the South?
Lilacs, which are prized for their lovely scent, are a staple of the springtime landscape in northern and colder countries. They are among the most efficient blooming shrubs because they are simple to grow, hardy as nails, resistant to deer, and largely devoid of serious pests.
Sadly, not all lilacs thrive in the southern heat. For the buds to grow and bloom the following spring, they frequently require a lengthy period of winter chill. However, a few lilac cultivars and variations do well in the Lower South.
Follow these simple guidelines to grow lilac bushes and receive the best flowers: find a location with adequate drainage, good soil, decent sun, and provide good care.
- Lilacs are easy to grow in fertile, humus-rich, alkaline to neutral, dry to medium, well-drained soils since they adore full sun. Although it may take some little shade, full sun produces the greatest flowers.
- Also requiring space is lilac. It’s critical to have good air circulation to minimize powdery mildew problems.
- The amount of blooms produced the following year will increase if withered blossoms are promptly removed before they set seed.
- To sustain flower production the following year, trimming should be done as soon as possible after flowering. Shortly after they stop blooming, lilacs start to set buds for the following year.
Here is a collection of lovely lilac cultivars and variations appropriate for the Lower South.
Zones:
The majority of lilac types can withstand cold temperatures in zones 3 to 8, although others, like Scentara Double Blue, can (S. hyacinthiflora). There are some cultivars that don’t require a winter chill, like as “Lavender Lady” (S. vulgaris), which is heat tolerant to zone 9. The majority of others do need a wintertime period of cold and dormancy.
Height/Spread:
The common lilac, Syringa vulgaris, reaches heights of 12 to 15 feet and widths of 10 to 12 feet. The majority of dwarf types are smaller and reach maturity at 4 to 6 feet tall and 3 to 7 feet broad. Syringa reticulata, often known as the Japanese tree lilac, grows up to 30 feet tall.
Bloom Time:
The majority bloom in late May, however there are new re-blooming kinds, such the Bloomerang series, as well as early spring, mid-spring, and late-season blooming variants.
Color:
The common lilac (Syringa vulgaris) has gray to gray-brown bark, purple blooms, and dark gray-green to blue-green foliage (with no fall color change). But there are actually seven recognized hues for lilac flowers: white, violet, blue, lavender, pink, magenta, and purple, with several variations of each hue.
Other:
True lilacs, such as the California, mountain, and wild lilacs, are truly members of the genus Ceanothus. Butterfly bushes are frequently referred to as summer lilacs, especially sterile and non-invasive varieties.
In Zone 8 can I cultivate lilacs?
Lilac kinds are quite varied and range from little shrubs that only grow to a height of four to eight feet, up to trees that can reach a height of thirty feet. Because lilac plants are native to the chilly, lower highlands of Asia, the majority of lilac types are hardy in Growing Zones 2 through 7. But nowadays, even people who live in warmer climes can grow lilacs because some types will bloom in Growing Zones 8 and 9.
Lilacs flourish in Zone 9, right?
The traditional variety of lilac, common lilacs (Syringa vulgaris), have the largest flowers, the greatest smell, and the longest-lasting blooms. They only flourish in zones 5 through 7 and often need cold winter months. For zone 9, they are inappropriate as lilacs.
Lilacs can they grow in zone 9? a few can. Lilac shrubs that flourish in U.S. Department of Agriculture plant hardiness zones 8 and 9 can be found with little to no effort.
Zone 9 Lilac Varieties
If you want to cultivate lilacs in zone 9, consider the newer cultivars rather than the traditional varieties. A few have been bred to thrive in hotter climates.
Among the most widely used options is Blue Skies (Syringa vulgaris) “Blue Skies), which has flowers that have a strong scent. Syringa x hyacinthiflora, sometimes known as the Excel lilac “The hybrid Excel) blooms up to 10 days earlier than other kinds. It has a maximum height of 12 feet (3.6 m). Cutleaf lilacs (Syringa laciniata), another lovely species, might also thrive in zone 9.
Lavender Lady (Syringa vulgaris) is an additional potential “Lavender Lady), a hybrid produced by Descanso. It was created for the climate zone 9 in Southern California. A little lavender tree called Lavender Lady can grow up to 12 feet (3.6 m) tall and half that broad.
In addition, Descanso created White Angel (Syringa vulgaris) “Another alternative for zone 9 is White Angel. The lilac blossoms on this shrub are a stunning creamy white.
Additionally, keep a watch out for Bloomerang, a brand-new lilac from Proven Winners. It thrives in zone 9 and blooms profusely in the spring with light or dark purple flowers.
Do lilacs make dogs sick?
Lilacs don’t have any poisonous or irritating substances that could harm people or animals. Even though chewing on lilac stems, leaves, and flowers has no health risks to dogs, it is still a good idea to prevent this from happening. A pet’s digestive tract may become disturbed if they consume too much roughage. Additionally, twigs and leaves might get caught in their throats. Additionally, dogs’ inability to digest large amounts of plant matter can result in nausea or diarrhea. The Persian lilac (Melia azedarach), which is not related to actual lilacs, is deadly to dogs, according to the ASPCA Animal Poison Control Center.
Are lilacs difficult to grow?
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.
Do lilacs require a cold climate?
One of the most well-liked scented multiblooming shrubs is the common purple lilac (Syringa vulgaris). In USDA growth zones 3 through 7, this plant flourishes. Lilacs are sturdy plants, so maintaining them is not very difficult. Although they can survive temperatures as low as -40 degrees Fahrenheit (-40 degrees Celsius), they may require some protection from harsh gusts that can harm the flower buds.
Lilacs require chilly winters to help set the blossoms for the next season. There isn’t much upkeep required while the shrub is dormant throughout the colder months. Dehydration brought on by frozen soils and arid winter winds is the biggest issue for lilacs during the winter. The roots are less likely to be harmed by freezing water when the soil is well-draining.
How long does a lilac shrub take to grow?
Lilacs produce flower buds for the following year after blossoming in the current year, just like other spring blooming plants do. Lilacs should be deadheaded as soon as they finish blooming to promote healthy bud growth for spring flowering.
- Deadhead: For larger plants, use a hedge trimmer or a hand pruner to remove dead flower heads down to a pair of leaves. Shear gently, just removing the dried flower heads.
- Renewal pruning: Renewal pruning promotes the growth and flowering of new stems while distributing more light throughout an older plant. Lilacs that have just been planted often don’t require trimming for 2 to 3 years, and it might take up to 2 years for a lilac to blossom. Lilac stems have a tendency to shadow out new growth at the base of the plant as they enlarge and become more like trees over time.
- Remove a third of the base of the thickest stems with a lopper or handsaw.
- Repeat this each year until all huge stems have been cut off.
- For smaller, thickly branching lilacs like Korean or Meyer lilacs (Syringa meyeri) that have overgrown, rejuvenation pruning is a strategy.
- Use a saw or hedge trimmer to chop the entire plant to the ground in the late winter.
- In the spring, fresh growth will emerge from the root zone.
- For one or two years, the plant might not bloom at all or only sporadically.
- Make sure to choose cultivars that are disease-resistant because powdery mildew is simply aesthetic.
Are lilac bushes eaten by deer?
Lilacs may be vulnerable in the first few weeks after planting, despite their deer resistance designation. The shrub should live even if it has been nibbled on as long as the root structure is unharmed. A lilac plant can be almost completely destroyed and still recover and thrive. Lilac plants are very hardy and can actually benefit from being pruned, even if it is unintended.
Agricultural Experiment Station in New Jersey, “Landscape Plants Rated by Deer Resistance,” 2018
Which lilac has the strongest scent?
I had the impression that lilacs were meant for me at times. Working with my grandfather, a nurseryman who specialized in these enthralling beauties, for many hours during my formative years. The tall, pink-flowered “Esther Staley” lilac that grew next to my grandparents’ back door captured my attention the most. Like some people dream of authoring the great American novel, I once fertilized that plant in the hopes of creating a fantastic new lilac. Even though my first attempt at hybridizing failed, I still enjoy breeding lilacs. I also keep an eye on the lilac collection at the Boston-area Arnold Arboretum of Harvard University.
Why are lilacs so alluring? Certainly, the approach of spring is signaled by their wonderful scent. Lilacs are exceptionally simple to grow, and they are distinctive enough to define a color and a fragrance. Additionally, lilacs now come in an astounding range of colors, habits, bloom sizes, shapes, and flowering times. Previously, they were only available in two flavors—purple and white.
There are many modern uses for these traditional plants. Species that are vibrant and fragrant may draw attention. Lilac shrubs can be arranged to create a hedge or screen. Lilacs that grow tall provide shade for a patio. Lilacs can also be underplanted with perennials that will bloom at the same time as them, such as bleeding heart (Dicentra spectabilis) or spring bulbs.
With lilacs, fragrance is the number one priority
Different lilacs have different levels of fragrance. For instance, many white lilacs only have a little aroma. Other lilacs range in flavor from quite sweet to extremely pungent. I am able to perceive pleasant smells, yet my olfactory system seems to swiftly adapt to a fragrance. This makes it challenging to discern between the aromas of various flowers. I still grin when I smell lilacs.
I started a project a few years back to keep track of which lilacs were and weren’t fragrant. I had to find willing sniffers. Now, based on other people’s noses, I can offer fragrant lilacs with assurance.
French hybrids are the best-known lilacs
All lilacs are members of the Syringa genus, which has roughly 20 species and hundreds of widely grown cultivars. Asian species predominate. None of them were born in North America. The common lilac, S. vulgaris, with its heart-shaped leaves and big blooms that bloom around the third week of May here in Boston, is significantly different from many of the species, or wild, lilacs.
The common lilac is an Eastern European native that was brought to Western Europe before 1600 and most likely from there to North America. Named cultivars weren’t created until the 1800s. Since so many of these superior cultivars originated in France around 1900, the word “Even though many common lilac cultivars were developed in other European nations or North America, the term “French Hybrid” is frequently used to refer to all of these varieties.
Other Syringa species have some highly intriguing characteristics outside of the common lilac. Each has a pleasant scent, however some are fairly distinct from S. vulgaris.
S. pubescens, a native of China, is the lilac that is typically regarded as having the strongest scent. It has tiny, purple-tinged white blooms. The aroma is sweet and spicy, extremely unlike the conventional scent “lilac aroma
An lovely native of China and Korea, S. oblata is an early bloomer and blooms approximately two weeks before the common lilac, which it mimics in appearance and aroma. This species is well recognized for being the parent of the S. hyacinthiflora early-flowering hybrid group. The common lilac serves as the other parent. S. oblata and common lilac cultivars have been crossed by breeders to produce some lovely early-flowering, fragrant selections, many of which are disease-resistant. This collection contains some of my favorite cultivars. These include my favorite white lilac, “Sister Justina,” as well as the exquisite lilac-pink varieties “Asessippi” and “Excel.” These three generate a lot of flowers from the top of the plant to the ground, although none of them have particularly large blooms. They have a pleasant scent, and in Boston, the common foliar diseases powdery mildew and leaf-roll necrosis rarely affect them.
Because of its small, intricately cut leaves that resemble ferns, another Chinese species known as S. protolaciniata (which is related to S. laciniata) is called cut-leaf lilac. Unlike the typical lilac, it has inflorescences that appear all the way down the stem from a branch terminal back approximately 18 inches, producing a large number of tiny, light-purple flowers. Some plants can grow up to 8 feet tall and 10 feet across, although they are always incredibly delicate-looking.
Some lilacs are trees
There are tree lilacs that can grow to the size and shape of an apple tree rather of just being large shrubs. They grow beautifully as shade trees, and the second season of interest is provided by their striking bark. My garden is now bordered by a sizable, untrimmed hedge of tree lilacs that was originally planted as a nursery row.
A week to ten days following the late lilacs, which bloom around a month after the early lilacs, come the tree lilacs. They have ivory blooms with a privet-like scent, which is a related relative. Compared to the Chinese tree lilac, the Japanese tree lilac (S. reticulata) often has broader, rounder leaves (S. pekinensis). Both tree lilacs have lovely bark that resembles cherry bark, but the Chinese tree lilac sheds more frequently and comes off in strips. This characteristic makes the cultivar “China Snow” beautiful. The Japanese tree lilac has a cultivar called “Ivory Silk” that is now widely accessible. In addition to being useful in gardens, it seems promising as a little street tree.
A few are short and sweet
I’ve planted a kind of S. patula called “Miss Kim” on either side of my front door. ‘Miss Kim’ is a little shrub that reaches heights of 8 to 9 feet while not being a dwarf. Its leaves acquire a port-wine hue, making it one of the few lilacs with good fall color. It blooms a week or so after the common lilac and has a profusion of deliciously fragrant blooms.
The cultivar commonly referred to as “Dwarf Korean Lilac” is another small lilac. This lilac, S. meyeri ‘Palibin,’ though a dwarf, is a cultivar of a Chinese species rather than a Korean one. Its rarely taller than 4 to 5 foot plants have tiny, circular leaves and tiny blooms. The blooms are a light purple color in the buds, but when they are fully opened, they are white, numerous, and fragrantly pleasant. This variety can be utilized to grow a short hedge.
Late-blooming lilacs have a distinctive look and smell
About a week to ten days after the common lilacs, the late lilacs blossom. As opposed to breeding within a species, most of them are the result of hybridizers crossing two or more species and choosing their strongest offspring. To produce the hybrid group S.prestoniae, Canadian plant breeder Isabella Preston initially crossed S. komarowii ssp. reflexa and S. villosa. Others have since crossed late-flowering species with Preston lilacs. However, these late-flowering lilacs don’t have the typical “lilac” appearance or scent. Sincerely, I believe that these bushes would be more well-known if they were known by a different name. Miss Canada, a true red-pink lilac, and ‘Agnes Smith,’ with white blossoms, are a couple of my favorites.