Answer: The most common reasons for non-blooming are not enough sunshine; too much nitrogen fertilizer; pruning at the wrong time of year; or immaturity of the plant. If all else is equal in your garden, the non-blooming bottlebrush may not be quite old enough to bloom - even if they are exactly the same size as the bloomers. Give them another year to establish their root systems and mature enough to burst into bloom. I'm sure they will!
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