On Sat, 13 May 2006 00:43:01 -0500, sherwindu wrote:
Don't worry about the dandelion seeds blowing your way... you've already

got a 75 year supply or so in your soil, waiting to germinate.

That sound pretty scary, like a bomb ready to go off if I slip up on lawn
maintenance.

I don't know about scary, but here's a couple of articles on weed seed banks
(the technical term for the seeds in the soil already):
http://www.weeds.iastate.edu/mgmt/qtr00-1/seedfate.htm
http://newsroom.msu.edu/site/indexer/672/content.htm
http://amos.indiana.edu/library/scripts/seeds.html

And yes, slipping up on lawn maintenance does lead to weedy lawns. Lawns
as envisioned here in the US are these perfect green carpets with nary a
weed in sight... and they're terribly wasteful of time and energy and
typically propped up by fairly heavy chemical use and watering. Choosing
well-adapted grass species (like buffalo grass) reduces all those inputs
greatly. Here's a buffalo grass lawn, for instance:
http://www.ext.colostate.edu/ptlk/1912a.html

Kay

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