Why don't my hydrangeas flower?
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Did you prune them last year or did the frost kill the buds. That's what happened to mine this year.
https://www.gardeningknowhow.com/ornamental/shrubs/hydrangea/hydrangea-not-blooming.htm
use a 4 tined garden fork and just dig in a poke the area where the roots are. this will wake up the roots and may make the plant work . i had same problem and this worked for me
Thanks. I have the same problem. Beautiful bushes...no blooms.
The most common reason for hydrangeas failing to bloom is winter injury. Other reasons may be too much shade, poor fertility and too much nitrogen fertilizer.
See if you don't find this informative:
http://www.clemson.edu/extension/hgic/plants/landscape/shrubs/hgic1067.html
I use Epsom salt to feed my hydrangeas I have started my plants from cuttings that were thrown away left in plastpic garbage bags all winter under the open shop area. They were to be burned in fall. They were forgotten so when spring came we were going to burn but found that the cuttings had new buds & ready to be planted
so we cut the stems that had several buds forming cut off old dried out parts around them & stuck in ground, nothing but Epsom salt was used in hole covered up with dirt liget epsom salt on top watered just enough to wet dirt. I had blooms the first summer & they are 3yrs old now & gorgeous. For winter to protect roots I got large pine needs from friends house that were dried put Epsom salt around each plant & a thick layer of pine needles DO NOT! Put pine needles or Epsom salt next to plant just about inche or two away. I did not have to anything to start roots I just put in ground after cuttings.
Don't prune them in the fall, your hydrangea blooms on old stems. Mine was the same last year cause I pruned in the fall, this year it's full of blooms on the old branches that I didnt touch
I had 6 plants along the North/shady side of our garage and they grew but didn't bloom for years. I pulled up the mulch and landscape fabric in an effort to clean up the bed and that year they bloomed. They needed unrestricted watering. They grew, bloomed and filled the bed, I never did remulch them. Also, I think if you have a plant that was forced to bloom ahead of the season it can take some time for it to get it's cycle in sync with the actual seasons.
https://thistlewoodfarms.com/how-to-make-your-hydrangeas-bloom/
https://www.gardenguides.com/84033-make-hydrangeas-bloom.html
http://www.millionplants.com/advice/wont-hydrangea-bloom/
https://www.thisoldhouse.com/ideas/5-tips-growing-gorgeous-hydrangeas