Am I over watering these ? Is it too much sun? They get sun in the afternoon starting with around 2-3PM till around 7PM in July. Very hot weather this year but I remember having the same issue last year. On the other side I have hostas in the front of the house and they start showing burnings as well during the summer
From what you describe, they are likely getting too much sun. They prefer mostly shade, with a moist but not overwet soil, preferably rich in organic material. Mulching helps conserve moisture. Hot afternoon sun is not ideal for them. They should be on the north side of the house, or under trees.