Lilac Bush Care
and Growing Tips
A healthy lilac garden is easier that you may think
Lilacs are low-maintenance shrubs. They offer good summer
shade after they have reached several feet tall and they provide
privacy to neighboring properties. With just a little care
and maintenance, and the knowledge of how to replenish the
old wood with new shoots, the shrubs will last a lifetime.
Moisture considerations
Lilacs do not like to get their feet (the roots) wet for a
prolonged period of time. They do best on hillsides, slightly
elevated areas, or level ground where there is good drainage.
Their roots run deep. If you have an extended dry period of
drought, water infrequently but thoroughly. Lilacs do not
grow well in lowlands where water tends to collect for prolonged
periods of time.
Weeding
Weed around your lilac bush
to maintain a clean, aesthetic look. Pile mulch high to retain
some soil moisture and to keep weeds down, but not so thick
that new shoots are hampered from sprouting and developing.
Two to four inches will do nicely. Lilacs will tolerate almost
any kind of soil, from clay to sand, with a pH of 6.0 to 7.0.
Like any plants, lilacs will benefit from compost and humus
worked into the soil to help retain water during dry spells
and to provide additional nutrients.
Fertilizer
You do not need to provide frequent fertilizer or organic
feeding for your lilacs. Use a general-purpose fertilizer
in early spring or one high in phosphorus to promote blooming.
Too much nitrogen in the soil will result in poor blooming.
Repeat the use of a general-purpose fertilizer after the flowers
have died off. An old stand-by from Grandfather’s day
was to spread your fireplace ash around the drip line of your
bush for bigger, better blooms.
Pests and Diseases of Lilacs
- Insects
Lilacs are fairly hardy plants. Most insect pests do not
bother them to any serious degree. For occasional insect
problems, such as aphids or borers, treat with an insecticidal
soap.
- Pests
Mice and moles are one of the biggest pests of lilacs. During
hard winters, rodents will chew on the bark of the stems
at or near ground level and can kill a plant. They harbor
under the mulch you amply provided and feed on your plant,
especially in the harshest of winters. Try to pull the mulch
away from the base of your plants, most lilacs are rock-hard
plants that don’t mind the cold. That mulch that warms
the roots is also a nice warm condo with a full refrigerator
for mice or voles.
- Disease
Lilacs are susceptible to a couple of plant diseases.
Most common is powdery mildew. Powdery mildew occurs
most frequently during hot and humid weather. Treat any
outbreak early. For a green solution mix a half a cup of
milk in a gallon of water and spray your plants. Repeat
as necessary. This is known in the plant world as biological
counter-culture. The lactobacillus that sours milk colonizes
the leaves and leaves no room for mildew spores! Good medicine
from Mother Nature! For majorly destructive outbreaks, trim
away infected branches and dispose of them. Do not add to
the compost heap. While this disease can cause major problems
with many tender fruits, flowers and vegetables, it will
generally not cause long term serious problems for your
bush. Powdery mildew’s unsightly appearance is the
biggest negative for lilacs, but it’s so easily remedied.
Propagating Lilacs
Most of the lilacs we’ve discussed are clump forming
colonizers that sucker freely from the base and this can be
a source of new lilacs to grow and give to friends and family.
Simply find shoots growing out from the main clump and dig
down to expose the roots for those canes and sever between
the mother plant and your new clone. Plant it in the same
soil it came out of with some compost or humus added and water
regularly until it starts to take off. You’ll know what
I mean. Lilacs are not hesitant growers and you’ll see
your plant grow quickly.
If you want to be the next Father Fiala and breed lilacs
you need to wait until one is in bloom, pollinate it with
the pollen from a different lilac, bag the blossom so other
pollen can’t contaminate our cross, wait months for
the seed to mature, give the seeds a winter vernalization…
or you could dig up the clonal clump and knock two years off
the timetable; you be the judge.
Growing lilacs is easy
Despite all the dire pronouncements, lilacs are really very
easy to grow. Just follow these few tips, and the worst that
Mother Nature can throw at your plants will roll right off
them. The lilacs are some of the most durable, fragrant, beautiful
flowers in the world. These old fashioned plants may have
been Grandma’s favorite, but they will certainly find
a place in the gardens of the future.

Tree Lilac
Price: 9.80
Nature Hills Nursery, Inc. The Tree Lilac, Syringa reticulata, 'Ivory Silk' is a heavily flowering
tree, covered by large plumes of small white flowers in the beginning of
summer. It?s dark green leaves blending with it?s fragr...Read
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Lilac - Common purple
Price: 9.00
Nature Hills Nursery, Inc.
The Common Purple Lilac, Syringa Vulgaris, is well-known and loved by gardeners all over the world for its beauty and fragrance; one of the most powerful fragrances emitted by a plant. This deciduous ...Read More
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Lilac - Korean
Price: 13.00
Nature Hills Nursery, Inc.
The Dwarf Korean Lilac, Syringa meyeri 'palibin', is known as a compact
but spreading, small-foliaged Lilac with showy late May lavender-purple
flowers that are spread over the entire shrub canopy.Thi...Read
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Lilac - Miss Canada
Price: 12.45
Nature Hills Nursery, Inc. The Miss Canada Lilac,Syringa x prestoniae, is a spreading, graceful shrub
with arching branches, reaching 6 to 9 feet in height, 5 to 8 feet
spread. Foliage is dark green with a beautiful yellow green...Read
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Lilac - Persian
Price: 9.60
Nature Hills Nursery, Inc.
The Persian Lilac, Syringa x persica, is a spreading, graceful shrub with
arching branches, reaching 4 to 8 feet in height, 5 to 10 feet
spread. This deciduous shrub has dark green foliage. The pale ...Read
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Lilac - White Persian
Price: 9.60
Nature Hills Nursery, Inc. The White Persian Lilac, Syringa x persica 'alba', is a spreading, graceful
shrub with arching branches, reaching 4 to 8 feet in height, 5 to 10 feet
spread. This deciduous shrub has dark green foliag...Read
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Related Links
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Save by purchasing a collection of lilacs for your garden. Gardeners Supply
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