Tanis Cuff asked, "Jim, do you mean the native sedges & cordgrass, or the
planted/ invading reed canarygrass? I can confirm this technique works well
with the latter, except RCG seeds DO grow well on upland, anything but dry
sand in full sun. But, the seeds have fallen out of the seed-heads by the
time marsh freezes."
The grasses that I cut from the swamp were probably all native as they
grew in shallow standing water. All of the Reed Canary Grass I have seen
tends to in places where standing water is intermittent. Anyway, I
harvested it in November so all was sans seeds.