Critter put those pots back outside when evening temps are constantly 60 degrees at night. You will be in for a big surprise at the end of June or beginning of August. Depends on how hot it gets. Overwintering hardly seems worth the effort with such a short season until the foliage begins to emerge and the excitement begins. If you don't want to look at weeks of empty containers you can add them to big containers that already have Hosta or other plants. I find it easier to put my bulbs in black nursery pots and sink that into larger containers with other annuals, tropicals, and perennials then when I want to remove my tropicals or bulbs I just have to lift out the plastic pot. I started doing this because as I got older it has become more difficult for me to carry those big heavy pots to the basement. As your collection grows it can become a huge mess bringing all that in so much easier to just let them go dormant. I might add to be careful not to overwater in winter or you will rot the bulbs. Good luck & enjoy!