Goal is mostly weed supression and cleaning up a soft down slope which is mostly glacial till and not soil enough to support anything but random weeds.
I get the basic idea hugelkultur well enough, but what I am unsure about is the ratio of greens to mix in with the wood and branches, and how much soil I should cap the thing with. Will I need to supply some type of ventilation?
Basic plan is to do a buried hugelkultur, in tiers, so I can maintain the existing down slope away from the back of the lawn and have a soil fit to grow siberian iris in front and tiger lillies behind with maybe some other short stuff scattered about, topped off with bark mulch.
Am trying to figure out how deep of a trench I need to dig, which basically comes down to how much soil do I need to cap the thing off with.
Basic plan is to lay in some 2” - 4” 'logs' with some of the pile of last years grass clippings I still have and some semi-active compost. Lay in some sticks and branches over that with some more coffee grounds, scraps, last years grass clippings and some semi-active compost, cover it with the remains of the lillies, iris and hostas that came out of the front garden last fall and cap it with a mix if garden soil, compost and some of the glacial till which is really sandy.
So, any suggestions on how much soil to cap the thing with?