g'day tifbee,

at first all i can suggest is a bit of KISS keep it simple, for me i see no issues in mulching on top of teh leech trenches and planting above ground producing food crops annuals, also below the leech field say around 5 meters below plant food trees.

for me i don't pay too much heed to zones, the important one is zone 0 or 00 in the head, if we get it right there then the rest is academic, and for the main most don't have enough land to formalise zoning. all that is important outside is that the herb garden be very near the kitchen door.

the important factor missed by many is the aspect of the land and the aspecting and orientation of the house on that land, much more important than a view or in real estate terms more important than "location; location; location".

keep us informed i usually only visit this forum once a week but while there is live chat i will pay more visits.

see our eco' home essay:

len

Here is a link that might be useful: lens eco' home essay

Thanks Len! I think I just need to go sit and observe a little longer, and make small adjustments. Usually the big picture will turn out if I work with a small space/issue at a time. I was thinking annuals as well since the root system isn't permanent, and the perennials in pots.
Thanks, Tif