Answer: Tuberose usually bloom from September to November. Bring the pot indoors as they may yet bloom. Water moderately. You're correct that tuberose bulbs are usually discarded after they flower.
If you want to try again next year, start new bulbs indoors 5-6 weeks before it's time to set them out (about the same time that it's safe for tomato transplants). Harden them off before leaving them out overnight. Good luck!
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