Muscari Paradoxum has been a spring-garden mainstay since the late 1800s. Dense flower heads, vibrant deep blue color, sturdy 7- to 8-inch stalks are the qualities that have made it a favorite. The bulbs naturalize effortlessly. Bloom time is April/May when many tulips, daffs, and hyacinths are in bloom which makes Paradoxum well-suited for mixed bulb beds. It is easy to grow in planters for portable spring color to take indoors.