Quote:
Originally Posted by Michael G.
How much does irrigation water effect St Augustine turf over rain water?
It seems when I run my irrigation system when the brown spots show on my lawn, it
doesn't seem to matter.
But if we get natural rain, those spots green up instantly. 
And did you ever notice when your having your lawn treated by these company's,
and you ask about the brown spots, it's always the homeowners fault.
Your watering to much, your not watering enough.
Good Grief  |
One contributing factor to the green up after a rain could be the nitrogen released from lightning. The lightning would need to be close by but the additional nitrogen released will have a positive impact on your grass color.