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The purple lilac is the state flower of New Hampshire

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Purple lilacs symbolize spirituality

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Lilac plants do not need a lot of fertilizer. We recommend fertilizing your plant after the second year of planting. To promote blooming, fertilize your plant in the early spring with a general purpose 10-10-10 fertilizer.

https://plantaddicts.com/fertilizing-lilacs/

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Lilacs are known to be an easily cultivated flower. This low maintenance plant is great for gardeners who do not have a lot of time to garden.

Lilac plants do not need a lot of fertilizer. We recommend fertilizing your plant after the second year of planting. To promote blooming, fertilize your plant in the early spring with a general purpose 10-10-10 fertilizer.

How to Fertilize Lilacs

Lilacs grow the best in cool summer climates- zones 4-7. They are not recommended for hot, humid areas such as zones 8 or 9. Hot, humid weather can cause a powdery mildew to form on the leaf. Lilac plants do not need a lot of fertilizing or organic feeding. We recommend using a fertilizer that is low in nitrogen and high in phosphorus to promote flowering. Too much nitrogen in the soil can result in poor blooms. If the soil is low in fertility, you can mix cow manure into the soil to promote flowering. Bone meal is also a great fertilizer for lilac plants because it makes soil more alkaline. Bone meal is a natural plant food that is easy for the lilac to intake. Using Epsom salt once per month on your lilac plant can make the plant grow bushier and produce more flowers (2 tablespoons of Epsom salt per gallon of water).

Best Time To Fertilize Lilacs

Fertilizing your lilac plant does not need to be done until after the second year of planting. Apply a 10-10-10 general purpose fertilizer when active growth is just beginning. Lilacs shed their leaves annually, so early spring is when the canes begin to awaken. Do not fertilize your plant more than once a year. Lilacs will not bloom if they are over fertilized.

Best Fertilizer For Lilacs

Lilac plants do not need a lot of fertilizer or feeding. We recommend a 10-10-10 fertilizer mix applied annually in the early spring. (The numbers 10-10-10 represent the amounts of nitrogen, phosphorus, and potassium - or as they are commonly known, NPK - in the formula). Fertilizing lilacs with a high phosphorus formula in early spring promotes blooming.

Grass clippings and coffee grounds can be used as a good source of nitrogen. Use sparingly, as too much nitrogen in the soil will result in poor blooms. Lilacs grow best in slightly alkaline (6.5 to 7.0 pH), moist, well-drained soil. Adding bone meal to the soil can make it more alkaline. If you choose to feed your plant in the spring, you can use Miracle-Gro® Shake 'n Feed® Flowering Trees & Shrubs Plant Food. Lastly, Lilac plants do not like acidic soil. you can use Epsom salts during the dormant period to help promote blooming.

Lilac Fertilizing Tips

Feed you lilacs during the second year of growth

Fertilize in early spring before new growth

Apply a 10-10-10 fertilizer

Spread some fireplace ash around the drip line of your bush, for bigger and better blooms

Bone meal can make soil more alkaline

Epsom salt once per month can make plant grow bushier and produce more flowers

Warnings
-Always wear protective gloves and a face mask when handling chemical fertilizers.

-Closely follow all directions and storage guidelines that are on the fertilizer label.

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Lilacs are known to be an easily cultivated flower. This low maintenance plant is great for gardeners who do not have a lot of time to garden. Lilac plants do not need a lot of fertilizer. We recommend fertilizing your plant after the second year of planting.

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Lilacs are native to eastern Europe and temperate Asia, and several are widely cultivated.

https://www.britannica.com/plant/lilac

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Lilac | Description, Major Species, Varieties, & Facts

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Lilac, genus of about 25 species of fragrant and beautiful spring-flowering shrubs and small trees of the olive family (Oleaceae). Lilacs are native to eastern Europe and temperate Asia, and some species are widely cultivated. Learn about the physical characteristics and major species of lilacs.

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Here's the first rule of planting: lilacs need lots of space to grow. If you're planting a hedge, they'll need a spot at least seven to eight feet wide and ten feet wide for a shrub.

https://www.hgtv.com/outdoors/landscaping-and-hardscaping/how-to-plant-and-care-for-lilacs

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The experts at HGTV.com show how to select, plant, prune and propogate lilacs in your garden.

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On average, it takes one week for common purple lilacs to go from first bloom to full bloom, but the timing will vary with the location and the weather. This lilac is a long-lived shrub, often living up to 50 years. Shrub stems can grow from 5 cm – 30 cm (2 – 12 in.) in length, per year.

https://plantwatch.naturealberta.ca/choose-your-plants/common-purple-lilac/index.html#:~:text=On%20average%2C%20it%20takes%20one,in%20length%2C%20per%20year.

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Syringa vulgaris - Common purple lilac was one of the plants most commonly brought to Canada by homesick settlers. Bushes still can be seen thriving near abandoned pioneer homesteads.

Other names

Taxonomy

OLEACEAE (Olive family)

Description

The lilac belongs to the olive family (Oleaceae), which is distinguished by having plants with flower parts in multiples of twos. This family includes olive trees, forsythia and jasmine. There are many varieties of lilacs grown in gardens all over the world, with numerous flower colours including white, pink, blue and purples varying from pale to reddish to very dark. The common purple lilac described below, known and loved in much of the world for its beauty and fragrance, has been used extensively as an indicator species for phenology studies like Plantwatch.

Shrub: Growing in ideal conditions, the common purple lilac can reach a height of 4 m (13 ft.), and have a spread of 7 m (23 ft.). This species of lilac produces suckers - new shoots that sprout from the base of the shrub, or from the roots. Without regular pruning, yearly growth of suckers will make the shrub very dense.

Flowers: The flowers grow in clusters 10 cm - 20 cm (4 - 8 in.) long. Flower colour varies from pale purple to medium purple. The tiny individual flowers (florets) are 0.5 cm to 1 cm (1/5 - 2/5 in.) in diameter, and each has a tube-shaped base with four spreading petal lobes.

Seeds: The flowers later become dry capsules containing two-winged seeds.

Leaves: The leaves are dark green, heat-shaped and hairless. They occur opposite each other on the stem. Each pair of leaves is arranged at right angles to the pair above and below. The erect branches also grow opposite each other.

It is important to observe only the early-blooming common purple lilac, not a later-blooming lilac species, so choose your specimen carefully! Flower colour should normally be pale to medium purple. The young winter twigs of common purple lilac are relatively unspotted, a good clue to finding the correct variety. The twig tips of some later-flowering lilacs have obvious, raised, white spots called lenticels (please do not report on these types of lilac). The common purple lilac has leaves that are smooth and heart-shaped.

If you are unsure whether you have selected the correct type of lilac, just ask us! Clip a stem with some leaves and a small cluster of flowers, and dry it by pressing it flat between newspaper sheets underneath heavy books. When it is dry, tape the stem to some cardboard and mail it to our office in a padded envelope with a copy of the flowering dates reported.

Distribution

This plant is native to the rocky slopes of the central Balkans in southeastern Europe in mountainous parts of Romania, Bulgaria, Serbia and Macedonia. Even today the subspecies Syringa vulgaris var. purpurea can be found growing wild in these areas. Lilac found its way from peasant gardens in Romania to the royal courts in Europe and Asia. It was introduced to North America by early settlers and now can be found in gardens all across the continent. Although there are hundreds of cultivars of lilac, the common purple lilac is probably the most widely distributed form. Because this lilac is so widespread as a garden shrub, we have not included a distribution map.

Habitat

In its native habitat, the common purple lilac usually grows on dry, rocky (often limestone) slopes in colder climates. In North American gardens, it is a very hardy shrub. This lilac can withstand severely cold winters (even -35°C [-31°F]) and does not grow well in areas without significant frost in the wintertime. However, it cannot tolerate poorly drained (wet) soils and doesn't grow well if it is shaded or crowded by other shrubs and trees.

Importance as a Key Indicator Plant

The common purple lilac is one of two non-native or introduced plants in the Plantwatch program (the other is dandelion). Lilac was selected because it is well known to act as a biological weather instrument. It has been used for over a century in Europe to study plant phenology. Studies similar to Plantwatch began in the United States in the 1950s, in which the public reported bloom times for lilac and honeysuckle to the Agriculture department. From these studies, information is available on how much accumulated heat (growing degree summation) is needed for flowering.

The bloom time of common purple lilac can be used to predict the best time for certain farming activities. In Montana, alfalfa is usually ready for its first cut one month after common purple lilac start to flower. To get rid of alfalfa weevil, some Montana farmers do an early cut of alfalfa hay within 10 days of the first common purple lilac bloom, eliminating weevil eggs before they hatch. In Southern Alberta, the saying is, "Be ready to cut hay 40 days after the lilacs flower." When common purple lilacs are in full bloom, it is the best time to treat birch leaf miner, gypsy moth larvae and lilac borer.

The Calgary Horticultural Society's Liesbeth Leatherbarrow recommends using common purple lilac as a natural calendar for your vegetable garden. "The leafing out of the lilac is a signal to sow cool-season vegetables such as lettuce, peas and spinach. When the lilacs bloom, it's time to fertilize the lawn and plant warm-season crops such as bush or runner beans and corn. Conventional wisdom has it that lilacs do not bloom until the risk of frost has passed, therefore it should also be safe at this time to plant out tomatoes, peppers and tender annuals. When the lilac flowers fade it should be warm enough to plant out squash and cucumbers, which are best started indoors in the short Calgary growing season."

Others feel the best time to plant corn is even earlier, when the common purple lilac leaves are 4 cm (1 1/2 inches) long.

The common purple lilac does not seem to respond to the amount of daylight; that is, photoperiod does not affect the timing of its growth. Temperature in spring is the main driver for bud development and flowering. The triggering factors for dormancy and reaction to spring temperature are located in the branch tips (buds). To see the effect of temperature, watch a lilac branch growing close to a warm, south-facing wall - spring flowering on this branch will be much earlier than on branches of the same plant which are farther away from the wall. This is why it is very important to find a lilac to observe whose branches are at least 3 m (10 ft.) away from a building.

Common purple lilac buds are formed in summer for the next spring, but "chilling" is needed before normal growth occurs in spring. In areas where winters are warm (e.g., southwest Arizona, southern California), the buds do not receive the chilling needed and thus their spring growth and flowering are delayed. In these areas, the common purple lilac is not a useful indicator plant for phenology studies.

How to Observe

1. Select a healthy, well-established common purple lilac that will likely remain in its position for many years. It should be in an open, unshaded area away from buildings, trees or other obstructions. Mark the plant with a tag (metal, plastic, or just tape) for future identification.

2. When flower buds become visible in spring, start checking the shrub every two to three days.

3. Record the dates: when the shrub first blooms and when it reaches full bloom. These dates can be defined as follows:

First bloom: when the first florets are open on the observed shrub (in 3 different places).

Mid bloom: when 50% of the florets are open on the observed shrub.

Leafing: when the first leaves push out of the bud and unfold completely (in 3 different places).

Note! The maturity of the plant may slightly affect the timing of bloom. Smaller, younger plants flower earlier than older, taller plants. If you suspect your lilac is more than 20 years old, use a flexible measuring tape to check the circumference of the largest live stem or trunk at a height of about 25 cm (10 in.) above the soil. Note the stem circumference under "Comments" on your data form.

Life Cycle

Common purple lilacs flower mid-May through June on the previous year's growth. The buds require some weeks of winter frost to set them well for blooming. After the leaves appear, the flower buds grow larger. If springtime temperatures are very warm, the flowers will appear earlier than usual but will remain in bloom for a shorter period of time. On average, it takes one week for common purple lilacs to go from first bloom to full bloom, but the timing will vary with the location and the weather.

This lilac is a long-lived shrub, often living up to 50 years. Shrub stems can grow from 5 cm - 30 cm (2 - 12 in.) in length, per year.

Human Uses

Common purple lilac was one of the plants most commonly brought from the "Old Country" by homesick settlers and planted around their homes in the New World. Apart from the beauty and fragrance of the flowers in spring, this plant also had a practical use - its dense shrubbery helped shelter a prairie home from wind. Common purple lilac bushes can still be seen thriving near abandoned pioneer homesteads. In the city or the country, the lilac hedge is a favourite place for birds because the dense foliage provides good nesting and hiding habitat. A strong lilac branch is a good place for your bird feeder!

The Latin name for lilac, Syringa, originates from the Greek " syrinx", meaning "hollow stem" or "pipe." One of the first common names for Syringa vulgaris in English was "pipe tree," because the straight stems made excellent pipes. The stem was used by ancient Greek doctors to inject medications into their patients. Syrinx also appears in Greek legend as a nymph pursued by the god Pan and eventually turned into a hollow reed from which he made his first flute or pan-pipe. At one time, Syringa was the name used for what we now call Mock Orange ( Philadelphus); this name is still common in parts of the United States.

Horticulture (Use in the Garden)

If you like lilacs, visit gardens! Some botanic gardens have extensive lilac collections. Here you can see the amazing diversity of colour and flower shapes in different cultivars. In southern Ontario, visit the Royal Botanical Gardens in Burlington around May 18-25, the average time of peak bloom. In central Alberta, go to the Devonian Botanic Garden in late May or early June.

If you wish to plant lilacs to observe in your own garden, you may be able to transplant a sucker from a friend's common purple lilac - it will not be mature enough to bloom for a few years, however. Otherwise, a recommended cultivar for Plantwatch observers is Syringa vulgaris 'Charles Joly', developed in 1896 in France. The flowers of this species are slightly redder in colour than most common purple lilacs but are suitable for Plantwatch because they are early blooming. This cultivar is usually very easy to find at nurseries. Lilacs are easy to grow.

References

Caprio, J.M. 1957. Phenology of lilac bloom in Montana. Science 126 (3287):1344-1345.

________. 1966. Pattern of plant development in the western United States. Montana Agricultural Experimental Station Bulletin 607:1-42.

________. 1993. Flowering dates, potential evapotranspiration and water use efficiency of Syringa vulgaris L. at different elevations in the western United States of America. Agricultural and Forest Meteorology 63(1-2):55-71.

Dubé, P.A., L.P. Perry and M.T.Vittum.1984. Instructions for phenological observations: lilac and honeysuckle. Vermont Agricultural Experimental Station Bulletin 692. University of Vermont, Burlington, Vermont.

Fiala, J.L. 1988. Lilacs - the genus Syringa. Timber Press, Portland, Oregon.

Hopp, R.J. 1974. Plant phenology observation networks. In Phenology and seasonality modeling. Ecological studies: analysis and synthesis, Vol. 8. pp. 25-43. Ed. H. Lieth. Springer-Verlag, New York.

Huxley, A. 1984. Green Inheritance. The World Wildlife Fund book of plants. Gaia Books Ltd., London, England.

Orton, D.A. 1989. Coincide, the Orton system of pest management. Plantsmen's Publications. Flossmoor, Illinois, U.S.A.
Thanks for editing and contributions to Michael Hickman and Roger Vick, Devonian Botanic Garden, and Freek Vrugtman of the Royal Botanical Gardens in Burlington, Ontario.

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Syringa vulgaris - Common purple lilac was one of the plants most commonly brought to Canada by homesick settlers. Bushes still can be seen thriving near abandoned pioneer homesteads. OLEACEAE (Olive family) The lilac belongs to the olive family (Oleaceae), which is distinguished by having plants with flower parts in multiples of twos.

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The optimum amount of sun or shade each plant needs to thrive: Full Sun (6+ hours), Part Sun (4-6 hours), Full Shade (up to 4 hours).

https://www.provenwinners.com/plants/syringa/bloomerang-purple-reblooming-lilac-syringa-x

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The optimum amount of sun or shade each plant needs to thrive: Full Sun (6+ hours), Part Sun (4-6 hours), Full Shade (up to 4 hours).

Features

We're sorry but this plant is no longer available; the information on this page is for reference only.

Don't settle for lilacs that bloom just once a year - get Bloomerang lilac and enjoy months of blooms instead of just weeks.

Bloomerang Purple lilac is the original reblooming lilac. It blooms in spring along with other lilacs, takes a brief rest to put on new growth, then blooms again from mid-summer through fall. A bit smaller than other lilacs, Bloomerang also has a nice, rounded shape that looks great anywhere you plant it in the landscape. Star-like flowers are a beautiful shade of classic lilac purple and are sweetly scented.

Bloomerang lilacs are also noted for their exceptional disease resistance - no worries about ugly white or brown foliage to spoil the floral show. And like other lilacs, it is sun-loving and deer resistant, so it makes an easy care choice for years of beauty.

Top reasons to grow Bloomerang lilac:

- It's reblooming! It doesn't only bloom once in spring - it also blooms summer through fall.

- Disease resistant. Doesn't get ugly from fungus and bacteria like older lilacs can.

- Neat, rounded shape looks good in the landscape or garden.

Plant Needs

A classic addition to foundation plantings and mixed borders. Bloomerang lilac is also a popular choice for planting in decorative containers - learn more here.

Plant only in full sun and well-drained soil; lilacs cannot tolerate soggy, wet conditions.

The rebloom of Bloomerang lilac occurs on the new growth the plant creates after its spring bloom. For the best rebloom, it's vital that the plant grows vigorously during late spring and early summer. Do this by keeping it well-watered and mulched and in plenty of sun (six hours a day at least). If you wish to fertilize it, you may do so in early spring, once the ground has thawed, and again in late spring, after it blooms.

If you want to prune Bloomerang lilac, do so immediately after its spring bloom. Never cut it back in fall, winter, or early spring - doing so will remove the spring flower buds. It is not necessary to prune Bloomerang lilac in order for it to rebloom. However, giving it a light trim after blooming does remove the developing seed heads (they look like green bananas, and some people don't care for the way they look on the plant), providing a neater look, and encourages more new growth for reblooming. Trimming after blooming will delay the rebloom by a few weeks compared to an untrimmed Bloomerang lilac.

Like nearly all lilacs, Bloomerang lilac actually requires a period of cold weather in order to bloom well. This is why lilacs are not typically suited to warmer climates. However, they are very, very cold tolerant and thrive in climates as cold as USDA zone 3.

The botanical name of lilac, Syringa (suh-RIN-gah), is from the Greek word syrinx, which means tube. This is because the stems of lilac contain a spongy pith which can be remove, leaving a hollow tube that has traditionally been used to create pan-pipes.

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bloomerang® purple - reblooming lilac - syringa x

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Bloomerang® Purple Reblooming Lilac Syringa x

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The optimum amount of sun or shade each plant needs to thrive: Full Sun (6+ hours), Part Sun (4-6 hours), Full Shade (up to 4 hours). We're sorry but this plant is no longer available; the information on this page is for reference only.

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A newly planted lilac shrub can be watered as needed to keep the soil evenly moist but not soggy. Water your plant whenever the top inch of the soil is dry (once or twice a week). Young plants can get drought stress, so avoid dry soil during this time. Once established, watering once every 10-14 days is recommended. Too much water can result in wilted, pale, or yellowing leaves.

https://plantaddicts.com/watering-lilacs/

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Syringa vulgaris

https://www.naturewatch.ca/plantwatch/common-purple-lilac/

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Common Purple Lilac (Syringa vulgaris)

Bloom time: May - June

Additional photos:

General: A non-native garden shrub, brought to Canada from Europe, it can grow up to 4 m high and 7 m wide.

Leaves & Twigs: Heart-shaped leaves are smooth and appear before the flowers bloom.

Flowers & Fruits:

Small fragrant flowers (florets) grow in clusters 10-20 cm long.

Flowers of common purple lilac can vary in colour (depending on the variety).

Habitat: Lilac bushes grow where they have been planted, such as in parks and gardens; but this introduced plant does not grow successfully in the arctic.

PlantWatch Pointers: If possible, select a lilac bush that has pale to medium purple flower buds. Choose a location at least 10 m away from a building or obstacle, and tag a typical shrub for observation.
Distribution Map:
To Observe:

First bloom: when the first florets are open on the observed shrub (3 places).

Mid bloom: when 50% of the florets are open on the observed shrub.

Leafing: when the first leaves push out of the bud and unfold completely (3 places).

This species is monitored in:

Alberta

British Columbia

Manitoba

New Brunswick

Newfoundland and Labrador

Northwest Territories

Nova Scotia

Ontario

Prince Edward Island

Quebec

Saskatchewan

Yukon

Common purple lilac was one of the plants most commonly brought to Canada by homesick settlers. Bushes still can be seen thriving near abandoned pioneer homesteads.

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Common Purple Lilac (Syringa vulgaris) Bloom time: May - June Additional photos: Syringa vulgaris after mid bloomcredit: Elisabeth Beaubien Syringa vulgaris just before first leafcredit: Elisabeth Beaubien General: A non-native garden shrub, brought to Canada from Europe, it can grow...