Answer: Yuccas tend to blossom when they reach a certain stage of maturity, so you may be seeing a variation in that. It is possible one of the divisions included older portions of the parent plant, or older offsets, than the other. It may also be that the blooming plant is in a sunnier or otherwise more favorable location than the nonbloomer. You may also find that the original blooming center of the plant has died out and that new portions are coming along to replace it. Sometimes the transplanting can disrupt the root system enough that it takes a little longer for one to fully recover than the other. I hope this helps you trouble shoot. Also, I am sorry it has taken us so long to respond.
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