Answer: There are a number of reasons that peonies fail to bloom. They need some time to adjust to their surroundings and sometimes won't bloom for 2-3 years after being transplanted. If planted too deeply, peonies may refuse to bloom at all, ever. Finally, peonies need a pronounced winter chill in order to bloom well. In your mild winter growing season, peonies may not perform well at all. I'd give them another year to become fully established. If they don't bloom by next summer, you may want to replace your peonies with something that will bloom reliably in your southern California garden.
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