In a large serving bowl, gently mix together the fresh blueberries, diced peaches, sliced cucumbers, and crumbled feta.

In a jar with a lid or measuring cup, combine the fresh lemon juice, dijon mustard, honey, olive oil, chopped basil, kosher salt, and black pepper.

Close the jar or grab a whisk, and mix your vinaigrette until it’s well combined.

Pour the luscious vinaigrette over the salad and gently toss everything together.

You can serve the salad right away, or if you prefer a chilled option, cover it and refrigerate until ready to serve.