I have been preparing for the West Kortwright Garden tour which is tomorrow, Sunday, and have been busy weeding, mowing, and hand watering; not much time for blogging! We finally got the hot weather and though I rarely ever water my perennial borders, ( a lot of rain and clay soil) I do put the sprinkler on the vegetable garden at this time of year. Some of the lawn has turned a sickly green/brown and so I have tried to save a few of those browning areas.
I can’t have enough of the color blue in my garden- especially with this heat!. Here are just a few of the blue flowering perennials I have in my garden. For a more in depth article please read –A Fan of the Blues. Let me know what blue flowering perennials you have in your garden. I am always looking for more. Stay Cool!
Aconitum Stainless Steel with Ninebark diabola shrub
Amsonia Blue Ice
Campanula Punctata Sarastro
Centaurea
Common sage
Geranium Brookside
Hosta Sieboldiana Elegans- One of the better blue leaf hosta!
Geranium Johnson’s Blue
Iris
Variegated Iris
Lupine and Geranium Johnson Blue
Wisteria Japonica
Salvia S. Caradona
Veronica longifolia -speedwell
Nepeta -Six Hills Giant
Rooting for Ideas 
I also love blues. How beautiful! Good luck with the tour tomorrow.
Wish you could be here!
You need a mandragora autumnialis, I think…
Don’t know Mandragora Autumnialis at all but I just looked it up- Beautiful Wonder if it’s hardy in zone 4-5?
Just received Logee’s Blue Rosemary from the greenhouse – I’m another blue flower fan
Jeanne Welcome to Rooting For Ideas. I will have to check that rosemary out. I am looking for late flowering blue flowers- August September . It seems most are in the early perennial flowering group- June July.