Blue Puff Grass

This big, gray grass grows up to 5 feet (1.5 meters) tall. The very thick stalks grow in thin clumps that are rigid.

When mature, the end of the stem eventually transforms into a medium-sized, bright blue puff.

During the early summer, it produces lots of pollen, but it does not cause any allergic reactions, and after flowering, it is left with a modest amount of giant grains.