"RCW" .@. wrote in message ...

"Rob Barrett" wrote in message
...
I seeded some new perennial rye grass lawn areas (previously overgrown
flowerbeds) about a year ago and they've done quite well. But they turn
quite yellow in cool, wet weather like we're having now (I'm in Durham).
The old lawn areas seem to love this environment and go lush green, while
the new lawn slows its growth and yellows. I noticed this pattern during
some similar spells earlier in the year.

Any thoughts or suggestions?

BTW, it may be a red herring, but it's green and growing better around
the
edges where it's up against paving. My soil is generally mildly
alkaline.

Bring the pH up to slightly acidic and feed with some nitrate fertiliser

to my uneducated guess it sounds likely to be lack of nitrogen if you don't
fertilise spring n autumn. A feed of fertiliser is the prognosis for that.
Take you pick of fertilisers, a good organic fix of nitrogen is blood and
bone (which also adds phosphorous) or one of the synthetic fertilisers that
also has phosphorous and potassium.

also try giving it a regular mow if not done already and mulch the grass
back in to the lawn if your mower will allow. This will cycle nitrogen from
the grass back in to your lawn.

rob