Briza maxima

Common Name(s): Big Quaking Grass; Blowfly Grass; Large Quaking Grass; Quaking Oats; Rattlesnake Grass

This summer grass needs well-drained soil and does best in poor soil. It is good for dried arrangements. This plant has open, puffy, overlapping, scale- like seeds and is reddish-brown or tan, touched with green. This plant may be confused with Briza Minor although it is easily distinguishable because Briza Minor is smaller in size.

Here’s another description: An easy to grow, tuft forming, arching grass with long, flat, thin, green leaves. Thin, loose spikes bearing heart shaped flowers clusters of pale yellow hearts in summer. A good grass for flower arranging. Dig compost in to the soil before planting.

Good web link here

P.