I am told by an English seed merchant that a number of grasses grown in the
UK are from seed produced in the USA ........ the summer climate in some
parts of the USA are not overly different from the UK.......(he purchases
seeds direct from the USA).......the typical watering requirement in the USA
is an inch of water per week with an increase in the hotter
weather........(the only fools I know over here that water every day are
those that think a daily five minute sprinling/watering is
successful).......the less frequent watering forces the roots to go deeper
and is a preventative measure........the most common/popular/desirable lawn
grass seeds in the USA turn brown in the summer's heat when cut too short
but remain green with a higher cut and using the same amount of water per
week........the once per week and twice per week in the real warm weather
gives a beautiful looking turf when cut high enough but very often results
in a brown one when cut too short..........did not many a home lawn in the
UK turn brown in the past year or so due to the hottish dry weather and
continued "bowling green length mowing?......HW

US grass is almost certainly very different to English grass (unless you
are so
dumb as to try and grow an English cultivar and smother it in water to
keep it
alive). Grasses adapted to hot summer continental climates are different.
Even
within England there are a huge choice of grasses and turf qualities
depending
on whether you want a perfect bowling green, football pitch or a rough and
tumble play area.

There is a huge range of grass species - they are one of the most
successful
plant forms on the planet.

Japanese wild grasses are actually brown for the entire dry cool winter
season.
And so are their lawns.

Regards,
Martin Brown