Answer: Although it sounds odd, I think the reason one of your plants is not flowering is because it was started from a cutting that came from a non-flowering plant. It's been my experience in greenhouse propagation that, since cuttings produce an exact duplicate of the parent plant, the cuttings should be taken from a perfect specimen. However, when cuttings are taken, the plants are not in flower so it's difficult to know!
This is a good reason for only purchasing plants that are flowering or have flower buds on them - at least there will be no surprises!
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