The foliage will die soon after blooming. Do not remove it until it is all but dead, since it is still feeding the bulbs in the soil. You can easily transplant the tulips in your outside garden and they will reappear year after year. If you want to keep them in a pot, remember that the bulbe are multiplying underground and need room to grow. Repot to a larger pot if necessary. Also remember that tulips need to undergo a cold weather dormant period or they will not grow the next year. You can set the pot in an unheated garage over the winter. Do not let the pot get bone dry for an extended period of time. The bulbs are alive and will need a little bit of moisture to survive.
The foliage will die soon after blooming. Do not remove it until it is all but dead, since it is still feeding the bulbs in the soil. You can easily transplant the tulips in your outside garden and they will reappear year after year. If you want to keep them in a pot, remember that the bulbe are multiplying underground and need room to grow. Repot to a larger pot if necessary. Also remember that tulips need to undergo a cold weather dormant period or they will not grow the next year. You can set the pot in an unheated garage over the winter. Do not let the pot get bone dry for an extended period of time. The bulbs are alive and will need a little bit of moisture to survive.
Good luck with your tulips.