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 meters). 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.
Do lilacs grow in Los Angeles?
I noted a few weeks ago that I had never seen a gorgeous, healthy lilac outside of the frigid high desert or Descanso Gardens, which is located in a cool canyon bottom populated with oaks, in a piece about other back-East species.
I speculated, “Perhaps someone will give me a photo of their lilacs, and I’ll start to believe, but until then, I’ll keep thinking that lilacs look fine next to a granite doorstep in New Hampshire but are a bad option next to a d.g. (decomposed granite) path in Southern California.
South Pasadena’s Donna Potts responded to my challenge by saying:
“I would want to take up the gauntlet after reading your lilac challenge on Sunday.
She provided pictures of a bush that was in full bloom, and I could see the top of a palm tree peeping over the carport in the background, so I knew the pictures weren’t secretly shot in New Hampshire.
She said, “I have a fantastic lilac in my typical California yard, but no decomposed granite path. Although I’m not familiar with the precise kind, they have a lovely scent.
“You are more than welcome to visit and verify for yourself that we can grow anything in Southern California.
Although South Pasadena is not that far from Descanso Gardens, the photo she enclosed is quite lovely.
But the next letter I read came from a Rancho Palos Verdes reader. Lilacs have been blossoming in their garden for the past 15 years, according to E.A. Trabin.
The Descanso peninsula, which has a completely distinct coastal climate, is far away from the Palos Verdes peninsula.
Another image of a young plant in bloom was provided by the Turski family in Venice, another coastal community.
Pete Colato writes from Valencia in the Santa Clarita Valley:
“I read your post while sitting in the garden and taking in the full bloom of my neighbor’s lilacs. I am familiar with lilacs because I grew up in the East, and these are just as lovely as any I’ve seen there.
More images of a bush in full bloom that was almost as tall as their chimney were sent by Larry and Helen Merken in Chatsworth.
Ruth Midyett also shared images of a large, attractive bush that is 25 years old from West Covina. Additionally, readers from Glendora, Reseda, and Thousand Oaks shared pictures.
Nancy Lewis also shared a picture of a lilac bush covered with blossoms from her home in Arcadia, close to the Los Angeles County Arboretum. Her plant is the original “Lavender Lady” Descanso hybrid.
These hybrid lilacs are said to perform the best in Southern California of all lilac varieties. White Chiffon, Spring in Descanso, Mrs. Forrest K. Smith, Descanso Giant, Sylvan Beauty, Pride of the Guild, and King of Descanso are more Descanso hybrids suitable for temperate areas.
Since “Lavender Lady” is the variety most frequently found in nurseries, I think most of the lilacs in the photographs were either that variety or one of these others.
Descanso Gardens responded to my article quickly as well. The volunteer curator of the lilac collection, Rudy Schaffer, asserted that watering, rather than weather, was to blame for my friend’s lilac’s poor performance, which was stated in my article.
He said that stopping watering mild-climate lilacs like “Lavender Lady” after September 15 and allowing them survive only on rainfall is the secret to having blossoms on them. Only plants that have been planted for two or three years are affected by this.
This dormancy-inducing drying out results in good flowers. When the first spring leaf or flower buds appear, you should start watering again.
Because of this, if you’re planting a fresh lilac, keep it away from shrubs or lawns that require irrigation in the winter.
He offered more advice on how to maximize the benefits of a lilac in Southern California:
* To prevent seed pods from forming, remove the old flower spikes after the lilacs have finished blooming. If they do, the lilac will have a poor bloom the next year.
* When plants older than three years have finished blooming, prune and thin them. He added that pruning improves flowering as well.
* Remove twiggy growth to start the trimming process. After that, remove any growth that has emerged from the ground and is no thicker than a pencil. Additionally, remove a couple of the oldest, tallest canes—those that emerge from the ground and are at least 3 to 4 inches thick—by pruning them.
This will encourage the young, robust canes that will produce more blossoms while preventing the plant from growing too tall (so you can no longer smell the flowers).
* To save summer moisture and keep the roots cool, you should additionally treat plants with a 10-10-10 fertilizer or a fertilizer of a similar type around mid-May. After that, cover the plants with a thin layer of mulch.
* In late June, fertilize one more time with a 6-10-10 mixture (if you desire additional growth) or a 0-10-10 mixture or something comparable.
At Descanso Gardens, lilac enthusiasts can pick up a fresh handout on growing and caring for lilacs in Southern California.
I’ll tell my friend who was attempting to plant lilacs in Beverly Hills about this, and I guess I’m now a believer.
The winning argument was made by Monrovia Nursery Co. I had always thought that the Oregon facility of this wholesale grower was where the lilacs were grown. But Azusa is where the nursery grows its lilacs.
Can you cultivate lilacs in San Diego?
This article is part of a series on incorporating local plants into neighborhood landscapes.
If a gardener is lacking in ideas, inspiration can be hiding in the hills near North County. Recent excursions to San Marcos’ Double Peak revealed the California lilacs (also known as ceanothus) to be blooming in their brightest blues and creamy whites, a color display that, at least during the season, outshines the stereotype of natives as parched, brown, woody things.
The majority of ceanothus plants are evergreen, and they range in size from small shrubs to giant shrubs, some of which can be trained to grow into small trees. They are distinguished by thick clusters of flowers that appear to be in every shade of blue. Although flowers might appear earlier, the blooming season typically occurs in the spring. The leaves are numerous colors of green and perhaps just as distinctive, if not consistently formed. Particularly when compared to French lilacs, fragrance comes in far third. And they manage to do all of this without relying on sprinklers (or rain clouds) to continuously spout water on them.
Even when they are in bloom, the species that live in the wild above our subdivisions are not always among the stunning plants that are offered for sale at nurseries.
“I have an upright plant called oliganthus oliganthus, often known as hairy-leaf ceanothus. Those will be in flower on the hillside. According to Valerie Phillips, manager of the Escondido natives-only Las Pilitas Nursery, the white ones are known as verrucosus (wart-stemmed lilac).
“The issue with our native species is that, in order to survive throughout the summer, they drop the majority of their leaves. She claimed that throughout the summer they appear rather pitiful.
“People prefer the hybrids because they typically have a better year-round appearance for garden use around your home in an urban context,” Phillips added.
The large “Ray Hartman” tree can be pruned into a little tree but also creates a great screen.
“The size (low and wide) and foliage of “Yankee Point” (shrubs) are highly desired. The “Yankee Point” is not a particularly impressive or showy bloomer. It has a great evergreen structure, which is crucial for a landscaper seeking a tidy, uncluttered appearance, according to Phillips.
This attractive “Yankee Point at the San Diego Botanic Garden in Encinitas sprawls around close to the Hamilton Children’s Garden, but it’s the kind of sprawl that a supporter of wise growth would want (Yankees easily push 10 feet). Do consider the 1-gallon plants’ listed development potential seriously “infants in a nursery. Many native ceanothus will reach heights and widths of 6 to 8 feet. The “That can be readily doubled by Ray Hartman.
The phrase “Joyce Coulter, a hybrid ground cover:” is another possibility.
The flowers in “Joyce Coulter” are what make me like it. According to Phillips, it features beautiful, brilliant, and numerous fluorescent lights.
Gardeners can combine popular forms to create subtle variations: “Blue Jeans for sharp holly-style leaves and “L.T. Blue for smooth ones; “Dark Star for deep blue flowers and “Remote Blue for light blue, or add a white bloomer to the party.
Gardeners’ excitement over new plants can quickly turn to confusion when a specimen doesn’t thrive.
“When a client calls with worries about a lilac, Phillips said, “the first thing I ask them is how much are they watering it.” ” The majority of the time, overwatering is the problem.
When a ceanothus specimen enters the earth, it should get the soak it craves more than any other.
Another query for the client: “Where do you reside and where on your property is the lilac?
On a south-facing slope in Poway, a California lilac is probably not going to do well, according to Phillips.
“The majority of lilacs prefer east- or north-facing slopes or level ground, and many of them like a little afternoon shade, possibly from a tree that is nearby where they get a break from the heat, according to what we have discovered in San Diego, aside from those who are in immediately coastal areas.
Ceanothus are more susceptible to the environment than many of their relatives from California. A landscaper should initially allow local plants like sages and buckwheats to biologically repair the area before replacing a site that was previously covered with grass. Weeds are not dug up by California lilacs, and fertilizers and soil conditioners should not be used.
However, place the ceanothus properly and reassure them with some rocks and redwood mulch that has been finely shredded “usually flourish in neglect. After their third year, they only really prefer to be rinsed with (summer) water, according to Phillips.
Planting native plants will draw other natives, like bees and small insects.
“According to Phillips, wild lilacs entice local pollinators to the area where they will also discover the fruit trees of (gardeners).
Phillips said that birds consume the tiny seed capsules that develop after the blooms have finished blooming. They serve as hosts for the larvae of some butterfly species. Aphids and ants are the key pests to watch out for in terms of uninvited species, she said. It should work with a powerful water shot. Another option is insecticidal soap.
Even when a gardener follows all the necessary procedures, a lilac occasionally appears to be stuck in first gear (or even dies). It might simply be adjusting. If yellowing or fallen leaves cause you concern, take a deep breath, check the soil’s moisture level, and repress the temptation to soak the plant.
Do lilacs thrive in warm environments?
Lilacs have wonderful flowers, and for millennia, people have grown them for their delightful scent. They are common in gardens all across the nation. Plant hardiness zones 3A through 7A of the United States Department of Agriculture are suitable for the common lilac (Syringa vulgaris). You might believe you can’t cultivate lilacs if you reside in a region with mild winters. There are types that have been bred specifically for warmer climates, which is wonderful news.
Try one of the unique lilac varieties created for a warm environment if you are in a location with infrequent or no frosts. Some of the unique hot-summer cultivars created by the Descanso Gardens experts in California a little over 50 years ago can be beneficial in warmer regions. Some of these lilacs do lose some of their distinctively potent aroma, while others retain it and can withstand the warmer weather from Southern California to some areas of Florida. Several names to think about are Angel White, Blue Skies, Blue Boy, Dark Night, Chiffon, California Rose, and Lavender Lady. While some of the cooler-climate lilacs can reach tree size at 20 feet or more, the majority of these hybrid lilacs only reach heights of 6 to 12 feet.
- Lilacs have wonderful flowers, and for millennia, people have grown them for their delightful scent.
- Some of these lilacs do lose some of their distinctively potent aroma, while others retain it and can withstand the warmer weather from Southern California to some areas of Florida.
These lilacs will thrive with good drainage, sunlight, and neutral to slightly alkaline soil.
If you’re going to prune lilacs at all, do it immediately after flowering to promote growth for the blossoms that will appear the following year.
If plants become too large, prune back the interior branches gradually over time so that there are still plenty of new growth shoots to produce flowers the following year.
Your lilacs will put on a brilliant display in the spring. Remember to trim the flowers so you may bring them inside. The powerful scent will fill your home with the freshness of spring to go with the enormous, vibrant panicles of bloom.
Lilacs all have a rather brief flowering season. To extend the blooming season in your garden, try utilizing different types.