In article ,
tenplay wrote:

can weeds like dandelions reroot themselves if they are left on top
of the ground?

No, but each tiny piece of root left in the ground forms a new plant.
Many weeds are like that. It is safe to use weed killers if you apply
them directly to the weed so that there is not runoff or residue. Some
people use small paint brushes to paint concentrated weed killer
directly on the leaves of the weeds you want to kill. I prefer a
roundup type weed killer because it will kill the roots. Then you need
to reseed with grasses like fescues and perennial rye. Blue grass is
nice but is not environment friendly since it needs a well fertilized
limed soil. Both the fertilizer and lime would harm the lake.

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