I have has a dead large tree removed, the grinder came this morning and
ground it out. Now I need to get rid of all the grindings. I intend
putting it on a large compost heap, which already contains grass
cuttings and weeds. How long can I expect it to take for them to become
usable as mulching/compost? It is a large heap about a cubic meter.

"Broadback" wrote

I have has a dead large tree removed, the grinder came this morning and
ground it out. Now I need to get rid of all the grindings. I intend putting
it on a large compost heap, which already contains grass cuttings and
weeds. How long can I expect it to take for them to become usable as
mulching/compost? It is a large heap about a cubic meter.

Sawdust only took about a year to become usable for us. We are on clay and
rotted sawdust/manure seems to break up the clay and keep the soil open more
than normal straw/manure.
--
Regards. Bob Hobden.
Posted to this Newsgroup from the W of London, UK

On 16/01/2014 16:59, Bob Hobden wrote:
"Broadback" wrote

I have has a dead large tree removed, the grinder came this morning
and ground it out. Now I need to get rid of all the grindings. I
intend putting it on a large compost heap, which already contains
grass cuttings and weeds. How long can I expect it to take for them to
become usable as mulching/compost? It is a large heap about a cubic
meter.

Sawdust only took about a year to become usable for us. We are on clay
and rotted sawdust/manure seems to break up the clay and keep the soil
open more than normal straw/manure.

Depends on the type of tree, Oak will take years where as a softwood
will break down in a year or so.
The harder the wood the slower to rot

On Thu, 16 Jan 2014 13:55:39 +0000, Broadback
wrote:

I have has a dead large tree removed, the grinder came this morning and
ground it out. Now I need to get rid of all the grindings. I intend
putting it on a large compost heap, which already contains grass
cuttings and weeds. How long can I expect it to take for them to become
usable as mulching/compost? It is a large heap about a cubic meter.

Don't just put it *on* the compost heap or it will congeal into a
lump. You need to mix it in well with the softer stuff like grass.
That's particularly important if the wood is hard.
And apply plenty of accelerator - recycled beer is ideal.