Yes, you can just cut off the dried off bloomstalk, just continue watering the plant, while the leaves still green. It will continue nourishing the bulb for the next season. Eventually it will dry off on its own, and do its summer rest, then trim off the dried leaves. Keep it dry, it will return again in Fall. It may also make new bulblets below soil line as nourishment from the leaves continues before the leaves dries off, so by the time Fall comes around, you may have more.
