I tried stinging
nettles this year from seed, and so far, not too many seedlings and not in the places I expected.
I put them on a hugelbed, in a pot, compacted soils, uncompacted soils, lots of sun, less sun and moderate sun.
I have only noticed a few seedings so far, I am hoping more will come soon.
I have heard - I think on Paul's
video -- that it is a "nitrogen hog'
Maybe soil here is low in that, or other conditions for sprouting aren't right.
I found one, under a giant tomato plant bareley wedged under a big stump.
I let more sun in to help it -- I think it preferred the shade cause it died (it could have been the
urine i applied liberally -- for nitrogen?)
I had hoped and assumed they would be gangbusters already -- ?!
It seems to have sprouted on disturbed soil on my little plot -- maybe someone can speak to that?