In article ,
"Crimson Castle" wrote:

I'm curious. Does growing potatoes actually help to break up clay soil?

Yes, but it doesn't really *rejuvenate* the soil -- the mulch you apply to the
spuds does that. The potato roots travel into thhe clay and allow the passage
of moisture, thus breaking up the clay.

BUT...

Potat roots don't travel down. They travel outwards from the stem.
Therefore, to break up teh clay, you need to plant the spuds IN it, not just
ON it. You might find that a no-dig garden is easier, particularly in heavy
clay, especially as it results in a raised bed.

--
Chookie -- Sydney, Australia
(Replace "foulspambegone" with "optushome" to reply)

"Life is like a cigarette -- smoke it to the butt." -- Harvie Krumpet