Nick Christians
November 27, 2013
I have been experimenting with tall fescue in various
situations. In the fall of 2012,
following the serious drought that we had that year, I planted tall fescue in
various parts of my lawn where I had lost Kentucky bluegrass during the
drought. This included areas on my
septic mound where the soil was thin and on an area above my buried propane
tank.
I had mixed results with that experiment. We had another drought in 2013 that lasted
from late June to October. I went a full
90 days without mowing non-irrigated areas.
While some of the tall fescue did survive on the septic mound, some of
it did not. On the thin soil over the
propane tank, I lost the tall fescue late in the 2013 season. In a few other drought affected areas in my
lawn, the tall fescue did survive the drought.
Tall fescue clearly stays green longer in droughts than does
either Kentucky bluegrass or perennial ryegrass. The picture below was taken at the research
station in August of 2013 during the peak of this year’s drought. The foreground is dormant Kentucky
bluegrass. The tall fescue is in the
background and it remained green through much of the drought.
In this picture, there is tall fescue surrounding our
perennial ryegrass cultivar study. All
of the ryegrass is nearly dormant, whereas the tall fescue around the outer edge of the trial remained green weeks
longer.
I have also been noticing something else interesting about
tall fescue late this fall. While
seedling tall fescue has remained green well into the fall, mature tall fescue
has gone off color earlier that either the Kentucky bluegrass or the perennial
ryegrass at the research station. I have
also noticed this on other mature tall fescue areas around Ames. HaS anyone else noticed the tall fescue going
off-color earlier than usual this year?
The light brown area on the right is tall fescue and the green areas surrounding the tall fescue are Kentucky bluegrass.
