August perennial flowers

We have no blooms left in our part shade garden 4B zone. Amended clay soil. We need some perennials that bloom in August. Can you help?    …

wisteria

I planted a four year old wisteria last year. It is now August and blooms are developing and opening. My previous wisteria always bloomed in spring. This spring was especially hot and this summer is hot and dry. My present…