Got it solo. Horse Chestnut deal helped.
Scrapped counter team and put in 5* debuff.
Able to give Kerria minimum support required to outlast 45% with Burning Bush.
Soapwort and Alpinia need a full 70% to outlast.
Team 4 is what I had left, just enough
Kerria, Soapwort, Alpinia, and Paedaria all survived

I did what I set out to do...time for them to put in harder stuff..