Bluegrass

This colossal, blue or caramel grass grows up to 24 feet (7.3 meters) tall. The wide stalks grow in large clumps that are robust.

When mature, the end of the stem eventually transforms into a giant, lime tuft.

During the mid-summer, it produces copious amounts of pollen; it does not cause any allergic reactions, and after flowering, it is left with a few giant grains.