In article .com, La
puce writes

cineman wrote:
My advice would be not to put ivy shreddings straight onto your bed as even
a small piece of stem can throw off roots , and as i said before you would
have the perfect groundcover. Keep in black plastic bags under a bush or
hedge for a few weeks just to start the rotting process.

What about holly?! I'm having my holly tree professionaly pruned. I was
offered the shreddings as they bring a machine with them. I accepted
thinking it would be a fabulous mulch but now I'm wondering if it's not
too acid? Maybe only for the paths ... but even though, am I making a
mistake?

Please can someone with botanical and chemical knowledge explain this
thing about leaves being acid? I know that peat bogs are acid, but could
someone please explain the process by which pine needles. holly etc
render the soil acid?
--
Kay
"Do not insult the crocodile until you have crossed the river"