Most plants can handle a few 90 degree days but not 9 of them in a row in the spring. The heat is stunting the vegetables in the garden and singeing the leaves on my perennials even those that are somewhat heat resistant.
The rhubarb is wilting and I am not sure I am going to be able to grow cucumbers this year. The young plants and seeds in my straw bale garden got cooked. These plants can handle the heat and some of them grow better because of it but it came too early. The young plants have not developed the root systems that they will need to survive and thrive in 90+ degree heat.
The plants that grow in containers are doing just fine partly because I am able to move them into areas that are at least partly shaded.
It is going to be a tough year for gardening and growing crops too.