Answer: Normally in order to help rebuild the bulbs, you would trim off the flower stems once the flowers have passed, but it is possible that your plants have produced seed if you did not do that. It is usually best to plant fresh seed as soon as it is mature. (Plant it lightly in dampened soilless mix, cover with plastic wrap and set in a bright location out of direct sun.) The resulting bulbs may flower in a few years.
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