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Questions tagged [lilac]

Genus Syringa, flowering woody plants native to SE Europe to E.Asia

"Lilac" is the common name for genus Syringa in the Oleaceae family. The lilacs consist of about 20-25 species and are native to woodland and scrub from SE Europe through to E. Asia. They are widely cultivated in temperate climates around the World.

Lilacs are flowering deciduous plants that grow as shrubs or small trees. Flowers are typically purple (often light purple - hence the name 'lilac') but also white, pale yellow, burgundy, and pink are known.

Lilacs are closely related to Ligustrum (privet) and both are classified in the Oleeae tribe.

Lilacs are popular shrubs for both parks and gardens due to their flowers and tolerance of soil types. A range of different cultivars of different flower colors are available.

Use this tag for all questions about growing lilacs.

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spiny growths on lilac bush (Colorado)

I have a lilac bush which this year did not seem to come in as full as the past couple of years. In addition, I see some of the branches have these spiny growths on them. Does anyone know what that is?
JoeMcG
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What are these white powdery patches on these lilac leafs?

A lilac bush was destined for removal and I separated as many cohesive root and shoot bunches as I could. I planted some immediately and potted others, almost all of which are doing well. I notice one in particular has a white powdery substance on…
cr0
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What are these spots on my lilac bush?

New to the landscaping game. Planted a small lilac in my yard about a month ago and I am starting to see these spots on a majority of the leaves. Is this due to lack of water or nutrition?
Gryphoenix
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What is wrong with my lilac? Strange leaf pattern

would someone be able to help me figure out what's wrong with my lilac? I see leaves that are very bright yellow in between the veins, however they are in clusters not all over the plant. I can also see very tiny reddish brown spots. There is a…
user3846169
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Lilac Bush - A parasite of some sort? How to treat?

This is related to this post, I'm having the same issue: spiny growths on lilac bush (Colorado) There is something growing from my Lilac Bush that isn't the Lilac itself. It grows directly out of the branches of the Lilac, so no separate branches.…
Justin Wade
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Lilac tree has branches without flowers

My parents have had a lilac tree in their backyard for about 25 years. It came from saplings given by a neighbour. Over the years, some secondary shoots ("suckers", I think?) were removed as they broke under the weight of snow. Up until a year or…
isanae
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Will Lilac do well in soil with a high concentration of clay?

I would like to plant some Lilac but may be cursed with Missouri clay. Will Lilac generally do OK if planted in clay-rich soil? What is a good way to start a new planting?
Gryphoenix
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Lilac disease/fungus diagnosis

I have 5 Syringa meyeri cvs all with leaves curling upwards, in on themselves also. yellow with brown/black edges and spots on the leaves. Is this just drought stress or something more serious. If it is a fungal diseease any help identifying it…
BPB
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How to save lilac bushes?

We planted a bunch of lilac bushes from Home Depot about two weeks ago but they seem to be dying. See the picture below. Our dirt around here seems pretty poor so we added a few shovels of organic dirt from Home Depot and a shovel full of rabbit…
Dan Anderson
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What type of lilac is this?

I live in zone 3 in Wyoming. It is a bold purple. The fragrance is amazing. The plant is about 10-12' tall and about 8-10' wide. I am moving and want to take it with me.
Jamie Mather
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Will lilacs make a decent winter privacy hedge?

I'm looking for the ideal plant for a privacy hedge to block our land from the road. I'm hoping I can make lilacs work, because we have a free source from a friend and I really like the plant. Plus, they're deer-resistant, a huge plus. The planting…
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Shriveling lilac blooms

Tall lilac about 10' was doing fine starting to bloom. We put new top soil, sprinkled alyssum seeds on top of lilac root area and put brick border and black rubber soil guard around same area. Now the lilac leaves and baby blooms are shriveling and…
RSz
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How do I encourage my potted Lilac Palibin to grow more leaves and flowers?

I live in Munich, Germany, and have had my Lilac Palibin bush for nearly a year. It has grown well in its pot on my south-east-facing balcony. However, now spring has arrived it has few leaves up the branches and only tiny bunches of buds at the…
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