Last year I planted this grass which was half the size with wispy leaves with light feathery seed heads later in the year. It was labelled as a Stipa Tenuissima, which it appeared to be. However this years growth is very different (See attached picture). The fresh leaves are about 3mm thick and have these large what look like seed heads about 5 cm from the tip. Are you able to advise what is happening here?
I would be most grateful