You can enjoy the rich aroma and dense flower clusters twice a year thanks to reblooming lilacs (Syringa penda), like “Bloomerang, which flower in the spring and then send out a smaller flush of flowers later in the summer. Reblooming cultivars, like the majority of lilacs, thrive best in USDA plant hardiness zones 4 to 7, while they can also grow in USDA zone 8 in western coastal locations where summers are mild and winters are mild. Deadheading can help boost subsequent flowering and remove the unsightly seed pods that develop after blooming. Deadheading also helps increase future flowering.
Find the highest group of leaves beneath a cluster of withered flowers. You can cut off the entire stem if there are no leaves between the flower cluster and the branch the stem meets.
After the first spring flowering time, deadhead the lilacs and discard all the blooms that were taken. After the summer blooming time, repeat the process. After each flower cycle, deadheading promotes healthy flowering for the following summer or spring cycle.
After flowering, when you are taking away the old flowers, trim out any dead or damaged branches and leaves. At this time, trim any overgrown branches back to just 1/4 inch before a leaf set. In the weeks following blooming, lilacs produce new flower buds, thus trimming out old wood during deadheading avoids cutting out future blossoms.
Sun and shade
Bloomerang lilac trees need at least six hours of direct sunlight each day to grow and flourish. Although they can withstand little shade, they won’t grow as many blossoms.
Soil
Trees prefer alkaline, well-drained soil that is wet. Their roots may being damaged by wet soil. The right amount of moisture can be retained and the Bloomerang can be shielded from temperature changes by a thin layer of mulch.
Watering
The blooming season is when bloomerang lilac trees will require the most water. From spring through the end of bloom season, right before the first frost, water once every ten to two weeks. Two inches of water are required for your tree to receive moist soil that is down to 12 inches.
Water during prolonged dry spells the remainder of the year if the top three inches of the soil begin to totally dry up and if the leaves begin to wilt.
Fertilizing
Beginning the second year after planting, you can fertilize your Bloomerang lilac tree in the first few weeks of spring. Apply a lilac-specific fertilizer to your plants. These often contain more phosphate and potassium and less nitrogen. A good NPK value is 5-10-10.
Pruning
You don’t need to prune your Bloomerang lilac tree. Your tree will blossom once more regardless of whether it encourages new growth. If you choose to prune your tree, do it as soon as it blooms. The flower buds will be severed if it is done in the fall, winter, or before the first bloom. Trimming will cause the rebloom to happen a few weeks later.
How are lilacs made to bloom twice?
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 called “Bloomerang” actually rebloom.
Outstanding reblooming lilacs, bloomerang lilacs have magnificent bloom clusters in the spring and again from midsummer until the first frost. These blooms have a beautiful scent. The plants maintain a height of under six feet and grow in a naturally rounded manner. These dwarf lilacs can also be grown in pots and are considerably smaller than regular lilacs. Bloomerang lilacs are disease- and deer-resistant and draw butterflies and other pollinators. They can withstand the cold. They are advised for zone 3, zone 4, zone 5, zone 6, and zone 7 cultivation.
How should a Bloomerang dark purple lilac be cared for?
Light is necessary.
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NOTES ON USE:
a traditional addition to mixed borders and foundation plantings. Learn more about bloomerang lilacs, which are a favorite choice for growing in attractive containers.
Notes on Maintenance:
Lilacs need full light and soil that drains properly; they cannot survive in damp, soggy circumstances.
After its spring bloom, the Bloomerang lilac plant produces new growth, which is when it reblooms. The plant must grow vigorously in the late spring and early summer for the finest rebloom. To achieve this, maintain it well-watered, mulched, and in direct sunlight (six hours a day at least). It is possible to fertilize it in the early spring after the ground has thawed and once more in the late spring after it has bloomed.
If you wish to prune a Bloomerang lilac, do it as soon as it finishes blooming in the spring. Never trim it back in the late winter or early spring because doing so will destroy the buds for the upcoming flowers. The Bloomerang lilac does not require pruning in order to bloom again. Although some people dislike the way they appear on the plant, giving it a light trim after flowering does eliminate the developing seed heads, giving the plant a neater appearance and stimulating more new growth for reblooming. Compared to an untrimmed Bloomerang lilac, trimming after flowering causes the rebloom to be postponed by a few weeks.
The Bloomerang lilac, like almost all lilacs, truly needs a spell of cold weather to bloom successfully. Lilacs are not often suited to warmer areas because of this. However, they are extremely resilient to cold and may survive in USDA zone 3 climates.
Fancy facts
Syringa, the scientific name for lilacs, comes from the Greek word syrinx, which means tube. The reason for this is because lilac stems have a spongy pith that can be removed to reveal a hollow tube that has historically been used to make pan-pipes.
When should lilac plants be pruned?
All lilacs should generally be clipped right away in the spring after they have finished blooming. Lilacs set their flower buds for the following year immediately after the current year’s flowers have faded, therefore trimming later in the summer or fall will result in the removal of most or all of the blossoms for the following year. The larger common lilacs as well as the shorter or more “shrub like” cultivars are all subject to this timing guideline. While the “when” of lilac trimming is rather simple, the “how” is a little more difficult. For the time being, we’ll refer to lilac pruning as either maintenance pruning or rejuvenation pruning to keep things simple.
How can I make my lilac bush produce more flowers?
Lilacs often bloom quite consistently, although occasionally they don’t. To ensure that yours grows, follow these suggestions:
- Usually, the issue is a lack of sunlight. Each day, the sun should be exposed for at least six hours.
- Nitrogen in excess might be problematic. Lilacs are frequently cultivated in lawns, and nitrogen-rich fertilizers are utilized to make lawns greener. This results in lovely green foliage on the lilac but minimal blossom. Avoid using nitrogen-rich fertilizers.
- Make sure to prune when the season is perfect. Remove any dead or damaged timber in the early spring. However, avoid performing any significant pruning because you can just remove the dormant flower buds. It’s acceptable to perform more significant trimming after the flowers have faded, such as reshaping or rejuvenating an elderly bush. The old flowers can be taken out as well. Just be sure you finish it before the middle of the summer. A few of the flowers from the upcoming season may be lost if you wait too late.
Visit the Lilac Planting and Care page for a comprehensive guide to lilac planting and care.
How can I make sure that my lilac bush blooms?
- Keep the grass from growing around lilacs to enhance blossoming. The grass will be kept down by placing a 16- to 24-inch circle of landscape fabric around the bushes and covering it with bark or stone.
- Cut lilac branches should be forced into a winter bouquet. The cut ends should be bruised and placed in water. The branches need frequent spraying. When they bloom, keep them in a cool location; after that, move them to a warmer location to show.
- When Abraham Lincoln passed away, poet Walt Whitman had lilacs in mind:
I cried and will continue to cry as spring keeps coming back as the lilacs in the dooryard bloomed for the last time.
- Lilacs are said to represent youthful enthusiasm. Discover more about floral symbolism here.
How are lilac Fullers made?
Cutting off the tops of stems that have grown out of control is frequently insufficient when pruning lilacs. It is typically preferable to remove the entire stem. The best way to trim lilacs is with clippers. To avoid spreading and promote later blooms, remove spent blossoms right down to the stems. Three-quarters of the branches should be pruned. Remove any shoots that are emerging from the main trunk and are growing close to the ground. Lilacs within the inner branches may need to be trimmed in order to increase air flow or let more light through.
However, it may be essential to prune the entire bush or tree to approximately 6 or 8 inches (15-20 cm) above the ground if lilac shrubs are already too big or starting to look unpleasant. Remember that it takes around three years for flowers to grow after the entire bush has been removed, so you might have to wait.
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.
What causes lilacs to bloom again?
We received a text message from a listener in area code 651 asking, “What would cause lilacs to bloom in September?”
When mild fall weather arrives following a cool down or after a strenuous summer, lilacs and other spring blooming plants may occasionally be persuaded to rebloom.
There may be fewer blossoms the next spring if you do have fall blooms.