Signs of Spring

Even an arctic front and two snow storms in one week can't stop spring from coming.  As the snow melts all the signs of spring are returning to our backyard.

The daffodils and irises continue to grow unscathed by the snow

The sleet and snow knocked over the crocus, but the flowers are still bright and yellow

The forsythia branches are budding 

The crocus are still growing

We've had so much rain and snow that the backyard behind the garage is now a swampy lake

Georgia reluctantly wades through the swampy puddles

New periwinkle flowers are blooming

Does anyone know the name of these little flowers?