So my S. miltiorrhizas are in their second year.
First year they died back and went dormant in fall after the first freeze.
This year they flowered, after they stopped flowering I cut the developing seed heads off so theyd have more energy left to save for winter.
But now, with the weather still around 104°F, five of six have fully died back to the ground and the remaining one isnt looking good.
I read these critters are supposed to be perennial, not biennial. Did they die, or do they just go dormant right after seeding or in warm weather?