new to Hugelkultur: questions

I'd like to get some input from you guys and gals about hugelkultur. Is it worthwhile? It really seems like a lot of work to set up which is ok, but what I'd like to know is do I need to reform the mounds after some time or is it good to go forever? What happens once the trees are fully decomposed? Does it sink and does it retain its wicking capabilities?

I am still new to this, but everything I have read/watched on hugel says it really depends where you are and the types of wood used. Some will break down quickly, others really slowly. I think the experts here on permies could probably help more if you give some more info about your area, zone, rainfall etc.

It depends .

I've yet to see anyone make up a hugel bed and not be astounded by it, although there are some places where it gets dry enough that you still have to water them. Unless you dig a hole and bury the wood, it generally won't "collapse", although the pile becomes smaller. What's left underneath is topsoil though, which still holds a good deal of water. Depending on how big of a pile you make, its shape, and characteristics of your climate, you may or may not ever have to modify the piles after their creation. Usually it just means adding more wood and stuff on top.

I have built forty feet of hugelkultur since July - by hand - and think it not alot of work, but the perfect kind of work.