Spruzenhugel

I heard something about spruce not being suitable for hugel kultur because of some antifungi stuff?

Is it the same with old logs or do they get better? I have some 7 year old spruce logs of 20' in diameter laying around. Will these be ok to use in a hugel bed?

Your solution is dilution.

..wiki says; "Because this species has no insect or decay resistance qualities after logging, it is generally recommended for construction purposes as indoor use only (ex. indoor drywall framing). Spruce wood, when left outside can not be expected to last more than 12–18 months depending on the type of climate it is exposed to."

Remember, most anti-biotics and anti fungals that we use as humans came from soil.
If they can deal with those, a little cellulose turpentine isn't going to slow em down....

Use whatever wood you have handy, even hard woods work because roots like the space between bark and base the best.

Sounds like I'll take my chances, and like Harper said, dilution is solution. The spruce won't be more than 50%.


Are there any other pros and cons for making a keyhole hugel, than for making a regular one?

Whould logs transport water better if places vertically?