BV wrote What about potting the plants, and burying the pots? Then at
least, with a
shovel you can cut anything that has jumped the pot, pull the pot out,
and
work from there?

That would be a good idea for the next frog bog
but alas nothing short of a stick of dynamite will
budge the cattails in there now. Youngest son is
an offensive tackle, big, strong kid, and he can't get them
to budge.
But we did get enough space clear for the next batch of
frogs this year.
Now the worry is with the drought out here to keep enough
water in it.
(If it's not one thing it's another...)

kathy :-)