Original sentence: The show's title, according to Kohan, refers "to a lot of things", including marijuana and widow's weeds - which she said were hats made of weeds worn by widows in mourning) - but mainly to "hardy plants struggling to survive
Edited sentence: The show's title, according to Kohan, refers "to a lot of things", including marijuana and widow's weeds (which she thought meant hats made of weeds worn by widows in mourning), but mainly to "hardy plants struggling to survive