Reference

Feather Reed Grass / Calamagrostis x acutiflora

Feather Reed Grass 'Karl Foerster'
From High Country Gardens in spring 2018.

Photos

Expectations:
Cool season grass. Comb out dead strands or cut browned stalks but don't cut all the way to the ground, leave an evergreen mound at the base. 

I planted three in a line under the kitchen window in spring 2018. I like the very upright structural look of this grass.

Experiences:
It took a couple years to fill in, but it has done what I wanted, making a lovely upright line of feathery grasses with motion. The tawny seedheads catch the light beautifully.

But for the first 5 years the three little plants remained small and spindly. In 2022 only two bloomed and the third remained without any seedheads at all. They looked stunted.

In 2023 I started aggressively fertilizing them often and all summer long, and the reward was a beautiful stand of tall, blooming grasses.

2023

With irrigation now and with the growth in 2023, they should be sturdier plants in the future. 

2024
I cut back on fertilizing in 2024, and they were still full and flowered well, just not quite as tall as in 2023.

Isolated against the wall with sun hitting them, these upright narrow grasses shine. 

They stay golden and tall in winter, although we got a heavy snow early in the season and they collapsed and had to be cut down.