pcbrook
Newly Registered
Posts: 4
Joined: Mon Jul 03, 2006 4:56 pm
Location: Wisconsin

When will it start blooming?

I found this forum on Google Seach and was hoping to get some answers.

I have a Syringa vulgaris "President Grevy" that was planted about 4 years ago. It is about 5 feet tall and 3 feet wide. There has not been any blooms on it yet and was wondering why. It is in the full sun and I have used Miracle Grow on it. A friend of ours said it might need another bush in the area.

It has been getting bigger every year but no blooms yet. I still have the tag that was on it when we bought it. It says it is a french hybrid. We followed the directions when planting.

Any help would be appreciated. Thank you.

meesh
Cool Member
Posts: 62
Joined: Thu May 25, 2006 12:30 am
Location: hillsboro,or

Do you prune the shrub? What is the ph of your soil? And Miracle Grow probably isn't the best fertilizer for any shrub. Use a good rose and flower food twice a year.

Musad
Full Member
Posts: 14
Joined: Mon Jul 03, 2006 11:04 pm
Location: Ohio

I have found that if you don't trim your lilac bush it will bloom.
I only trim mine around the very bottom so my husband can mow properly around it. It has a lot of blooms and just the top of it is really in full sun.
He wants me to cut it back but I refuse to since the blooms are so beautiful. They say to trim one after blooming but I don't. Hope this helps.

pcbrook
Newly Registered
Posts: 4
Joined: Mon Jul 03, 2006 4:56 pm
Location: Wisconsin

meesh wrote:Do you prune the shrub? What is the ph of your soil? And Miracle Grow probably isn't the best fertilizer for any shrub. Use a good rose and flower food twice a year.
I have no idea what the ph is of our soil. Is there something I can buy to test it? And no, we have not pruned it. When is the best time to do this? In the fall? And how far down?

Sorry if I sound dumb, but honestly, I am. Especially when it comes to this kind of stuff. I do not really know that much about this.

I told my husband I was looking for answers on the internet. I told him I found one suggestion was lime or manure compost. He said he did that last year. I am going to go to the greenhouse and buy some rose and flower food as you suggest.

pcbrook
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Posts: 4
Joined: Mon Jul 03, 2006 4:56 pm
Location: Wisconsin

Musad wrote:I have found that if you don't trim your lilac bush it will bloom.
I only trim mine around the very bottom so my husband can mow properly around it. It has a lot of blooms and just the top of it is really in full sun.
He wants me to cut it back but I refuse to since the blooms are so beautiful. They say to trim one after blooming but I don't. Hope this helps.
Do you mean trim or prune? Or is that the same? :?

Musad
Full Member
Posts: 14
Joined: Mon Jul 03, 2006 11:04 pm
Location: Ohio

Pruning and trimming are the same. As the bush gets taller don't trim or try to shape it. Besides they look better in their natural shape. If you do haave to trim or prune do it after it should have bloomed. Look at neighbors' and then you will know when to do it. My bush is about 7 foot tall after only 10 years time so it is not too big and it is in a corner . Hope this helps I have never fertilized mine and we have heavy clay soil.
Darlene

pcbrook
Newly Registered
Posts: 4
Joined: Mon Jul 03, 2006 4:56 pm
Location: Wisconsin

Yes, that did help. I think there is hope for my Lilac bush. I think the soil around here is pretty much clay. Maybe I just need to let it work for itself and it will bloom eventually.

Thank you for all the replies. :)

Newt
Greener Thumb
Posts: 1868
Joined: Wed May 26, 2004 2:44 am
Location: Maryland zone 7

Using fertilizers high in nitrogen (the first number on the package) will result in lots of leafy growth and few blooms in lilacs. If a lilac is in a lawn and the lawn is fertilized, these lilacs often don't bloom well. Compost is great for lilacs and can be added to the planting bed when first planted or used as a topdressing to the soil under the mulch.

Lilacs set their buds for the following years flowers about two weeks after the finish of bloom, so if you are going to trim or prune it to control the height, it should be done right after bloom finishes. New sprouts can take 5 to 7 years before they are mature enough to bloom.

Lilacs prefer a more alkaline soil, so adding a cup of lime to the soil will help them bloom better. They also need full sun.

Here's some helpful sites about lilac.
https://www.helpfulgardener.com/lilacs/index.html
https://gardencenter.southernstates.com/lawn_garden_faq/lilactree.shtml
https://lilacs.freeservers.com//lilac_tips.html
https://spi.8m.com/care.htm

Pruning lilac:
https://www.gardenersnet.com/lilac/lilac02.htm
https://www.ipm.iastate.edu/ipm/hortnews/1993/2-10-1993/lilac.html

Newt

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