Spring Dreams :: A welcome burst of post-winter color comes courtesy of early-season flowers. Not all plants in a flower garden need be in the ground; here, the pretty blooms of Endless Summer hydrangeas fill a row of containers. A short row of boxwood, planted in the middle of a flowering bed, offers visual relief. Plant in waves of color when designing a flowerbed. These pink and yellow tulips provide a first, early burst of blooms in the spring.