Is Hügelkultur a bad idea in a wooden raised bed?

It's about 6 feet from home with 1 foot or so raised concrete floating slab foundation.   4' x 4' raised bed with 4 x 4 posts & 2 x 4 sides.   Wood would be less than 5" diameter.. bunch of branches and I can split the old unused firewood to about 2-3" diameter.

Just concerned about any potential termites.. perhaps the untreated pine/fir raised bed wouldn't last as long if I did this?   Just trying to save on some soil expense as they are 17" raised beds.

Jennifer Lowery wrote:It's about 6 feet from home with 1 foot or so raised concrete floating slab foundation.   4' x 4' raised bed with 4 x 4 posts & 2 x 4 sides.   Wood would be less than 5" diameter.. bunch of branches and I can split the old unused firewood to about 2-3" diameter.

Just concerned about any potential termites.. perhaps the untreated pine/fir raised bed wouldn't last as long if I did this?   Just trying to save on some soil expense as they are 17" raised beds.

Sure, get a tarp for any any grass or whatever in area designated.  Did down at least about 12 inches (soil on tarp),  throw in all the natural wood in new hole.  Then take everything on tarp and cover your new hugelkultur mini

You can walk around home and monitor for any termite tubes going up to your home.

I’ve done hugels in similar situations and never had termite problems. I do wonder if wood frames on any raised bed wick moisture like wood sticking out of a hugel bed. I’d imagine it would be less problematic since the wood on the exterior frame is not embedded in the middle and therefore isn’t pulling as directly from the wettest place, but I imagine it still has some effect. If this does not work well for you, I would blame the concrete not the wood though!