I went to go visit a client and her landscape yesterday to make sure everything was overwintering well and it all looked great, including the crocus bulbs coming up.
It is early February and in Central Oregon that is too early for even the early bulbs to be coming up. Even though it is really a lovely bright spot in her garden, she was concerned that she wouldn't have the beauty of the bulbs for later in the season.
For the bulbs that have already flowered or are budding, there is nothing to be done. There actually is not much to be done at all when unseasonally warm weather prompts bulbs to grow or trees to start budding out earlier than normal. The bulbs that have not budded should slow down with the return of the cold temperatures. Putting down some extra mulch to eliminate any light that the bulbs are getting might also slow their current growth down.
Meanwhile, enjoy those little spots of color and start thinking, planning and dreaming of this years gardening season!