bluegrasses have been grown only in the northern region
of the United States. They simply could not take the
heat down south. But, 'Thermal Blue' is new bluegrass
variety that thrives even south of the transition zone.
combines the heat tolerance of turf-type tall fescue
with the exceptional turf qualities of Kentucky Bluegrass.
Not only does Thermal Blue stand up to heat extremely
well, it shows outstanding shade hardiness, particularly
in the South.
is resistant to brown patch and other diseases, and
its aggressive rhizome development gives it remarkable
wear tolerance. With a fine leaf texture the grass produces
a beautiful appearance as good or better than any other
Bluegrass will remain green throughout the year, even
during the winter months.
Fall are the best times to plant Bluegrass seed because
the seed germinates when temperatures are between 60°F
Blue has shown excellent sun tolerance, here in Zone
8, we usually plant it in locations that will receive
afternoon shade or mostly shade. For best performance
it requires all day filtered light or 4-5 hours of direct
sunlight per day.
A well prepared
seedbed is essential for establishing the turf. The
site must be well-drained so attention should be given
to final grading of the site.
and some annual grasses are particularly troublesome
in Bluegrass turf. Steps should be taken prior to planting
to eliminate these undesirable grasses. Herbicides containing
glyphosphate, such as Roundup or Killzall, can be used
to eliminate bermudagrass prior to planting tall fescue.
testing during the summer at Auburn University showed
that Thermal Blue excelled at locations where bluegrasses
traditionally don't perform well - under any circumstance.
The research demonstrated that Scotts new Heat-Tolerant
Blue Grass Seed produces the best density and turf quality
of all the cool season grasses tested, even tall fescue.
Thermal Blue, featured in New Heat-Tolerant Blue also
outperformed tall fescue when exposed to other summer
challenges, including growing well in the shade and
a higher resistance to brown patch. Other university
studies, from Ohio State University to Kansas State
University, had similar results in tests showing Thermal
Blue’s ability to germinate, withstand heat and
disease and establish a thick root system.
should be mowed at a height no less than 2 1/2 inches
during the warm season for best performance and drought
tolerance. Keep your mower blades sharp for neat appearance
of turf. Mow as needed.
Bluegrass tolerates low fertility, it responds to fertilization,
particularly nitrogen. Fertilize in early spring with
a slow-release, high nitrogen fertilizer such as 27-4-6.
Fertilize again in mid-spring with 16-4-8 or a lawn
fertilizer with similar numbers. Apply 27-4-6 again
in fall. You may substitute these commercial grade fertilizers
with Milorganite all natural fertilizer.
Bluegrass has shown itself to be quite tolerant to drought
in our own yards. So, do not apply supplemental irrigation
until the grass shows signs of needing water (wilting
or rolling leaves). Then, apply enough water to wet
the soil to a depth of 3 to 4 inches. If runoff occurs
before the soil is moistened to a sufficient depth,
turn the sprinkler off and allow the water to percolate
into the soil. Then turn the sprinkler back on at a
later time. Repeat this cycle until the soil is sufficiently
no problems with pests or diseases. If we do, we'll
be sure to update here.
should not be required as Thermal Blue Bluegrass self-repairs
from spreading underground rhizomes.
if there is a need to reseed, start by mowing the lawn
to a height of 2 inches before broadcasting seed. Rake
the lawn to remove grass clippings and other debris.
Aerate with a core aerator making two to three passes
over the area to be reseeded. Apply seed at 1 pound
per 500 to 1,000 sq. ft, and then broadcast a starter
fertilizer. These steps are usually adequate to rejuvenate
the lawn. After seeding, keep the soil moist for 2 to