Window Box of Tulips

My husband absolutely LOVES tulips. Living in Michigan everyone knows their bloom doesn't last long. He said he wants them year around. So I went to my happy place and made these & some crocuses, set them in grout in a window box and gave them to him for his birthday in FEBRUARY, two years ago. Since then he comes downstairs to admire the during winter and on st Patrick's day he brings them up to sit on the table all summer long!!!