JE>  Deeper roots; varieties that have developed over time ...
 DD> That's for real, eh?  Doesn't the grass, which has been there a long 
 DD> time, fit into the same category as the weeds...just curious.
     It would, if the lawn seed that we bought at the store were
     seeds that were specifically from varieties brought up locally - 
     which they aren't, in most cases.
     There are some excellent turf specialists in the area. Its
     fascinating to talk to them about the many, many varieties of
     grass available for shady, full-sun, acidic, etc. areas.
     Usually, when a lawn is re-seeded, though, it is seed from
     a larger company, generally based not only out of town, but
     out-of-province at times. Very rare to find original grasses
     anymore. I am talking of grasses that have been in an area
     for hundreds of years, by the way. If you dig up a native
     dandelion, by contrast, you will notice that the roots are
     thick, and hairy, and reach down many inches. These are well
     able to stand up to most weather conditions. The usual lawn
     grasses have much more shallow roots, and depending upon
     the original gardener, may or may not be at all suited for
     your place. Many lawns even now are from Kentucky grasses,
     which is fine for Kentucky, but not totally compatible with
     our own weather patterns and soils.
     What kind of lawn do you have now?
... ......
--- Blue Wave v2.12
1:153/831)
---------------