two part question for you Doc
I just finished a grow that was 50% used and 50% fresh brix soil.
It will most likely sit until next spring before being used again.
I also have a current grow with the same 50/50 soil that will be added to that batch when done.
1. Other than tossing in the trim leaves and Roots, should I add anything?
Sling a bit of wormcastings in that bin if you've got 'em.
On the current grow, I only have enough recharge for one plant of the three.
2. Could I add some 6/5/3 or some powdered nutes? Or go a bit heavier on the drenches?
You could add 6-5-3, but going heavy on the drenches won't make too much difference if there's no minerals in the soil.
And this is a pic of my HB Mystery Nirvana that got evicted from the flower room for being so slow at bud formation.
She was top dressed with a 1/4 cup Happy Frog and has only had rain water and tap water for just over 4 weeks now. She shows no signs of any deficiency.