When you want show-stopping plants with big flowers, nothing beats dinner plate dahlias. These tall, colorful, long-blooming plants feature flowerheads that can grow to more than 12 inches wide.

When you want show-stopping plants with big flowers, nothing beats dinner plate dahlias. These tall, colorful, long-blooming plants feature flower heads that can grow to more than 12 inches wide.

Science teacher Amandine Hall’s fascination with dahlias bloomed into an obsession. The result is a dazzling display of shapes, colors, and new varieties developed with a biologist’s eye.