Help w/yellow lilac

maimieMay 23, 2013

My friend planted a yellow lilac 5-6 yrs. ago & while it is flourishing in terms of greenery it has never bloomed. It gets about 4-6 hrs of sun. Can anyone suggest anything? Thank you in advance.

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jel48(Z4 Michigan)

I was, just earlier this week, looking up fertilization recommendations for several plants that I have, including lilacs. We have several 2-4 years old, that have not bloomed yet so that is one thing that interested me.

Here is the information I found.

Use a low-nitrogen, high phosphorus fertilizer, such as a 5-10-10 or 5 -10-5 blend, around the drip line of the shrub in early spring. Use the least recommended amount from the label of the fertilzer. Till into 1-2 inches depth. Water immediately. Apply only after the old flowers have dried up.

Otherwise, I also heard 1 cup of epsom salts around the drip line once or twice a year, for lots of blooms.

OR, 1 gal water plus 2 oz Epsom salts and pour on lilacs when they are dormant (late fall to early spring).

Mulch around base to keep soil moist and cool.

Hope this helps!

    Bookmark   June 27, 2013 at 1:50PM
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Sometimes when a lilac doesn't bloom and it is getting enough sun it means it is planted too deep. I have known more than one person who has dug out and lifted their non-blooming lilac slightly higher than it was planted before and the next year it bloomed. This is hard to do, however, if your lilac is large.

    Bookmark   June 30, 2013 at 8:58AM
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