added by empark
(14 months ago)
Blue oat grass (Helictotrichon sempervirens, zones 4 to 8) makes for a perfect steely blue sphere, like blue fescue but bigger. This grass may be a cool-season grower, but it does best with soil on the dry side and plenty of sun. Similarly hued flowers appear in early summer and fade to the namesake oat color by fall.