Thanks for the suggestion! I grew a few outdoor when i was younger. Unfortunatley here in south texas the soil is extremely alkaline. Id also be worried about importing a potential bug problem as well. Not much "woods" left down here anymore either. Sad to sayG&B is OK.
One option is to just hike into the woods, find some soil that smells right,
and carry some home.
Then add a small amount of supplements.