According to Darke, Calamagrostis brachytricha can be propagated by seed or division, so it must produce viable seed. It self-sows modestly in shady moist situations.

My C. brachytricha is blooming strong now and is beautiful! Great grass in a large and attractive container. Most enjoyable.

Mine are also blooming now. I started them from seed last year and had no difficulty at all. In my zone I don't believe the plumes will ever mature enough to produce viable seed but that's all right with me.

Thank you. I am collecting seed as it falls from the plumes. I will give it a try come spring.
Fingers crossed.
Grancru

This is fantastic news! I planted C. brachytricha last fall and mine is now blooming also. I am really loving this gorgeous grass and thrilled at the thought of growing more from seed!

Grancru, I have had great success w/winter sowing orn. grass, give it a try if you haven't already!

If any of you would like to trade some of your C. brachytricha seed, I have quite a few different OG seeds, and would love to try yours.

I would love to trade but my seed at this point is very limited. I hope to get this small amount to produce some nice grass come spring.

I did some winter sowing last year and will try again this year to see what kind of results I can get. Last year was Blue Fescue. Would like to try some Fountain Grass 'Cassian,' 'Hamelin,' 'Little Bunny', or 'Little Honey'.