Cook pasta in about 3 quarts boiling water over high heat until tender to bite, about 10 minutes. Drain, immerse in cold water, and drain when cool, about 3 minutes.
In large bowl, mix lemon juice, oil, and pepper. Add pasta, feta, and cucumber. Mix and season to taste with salt. Add calendula petals and nasturtium blossoms; mix gently.
Line a platter or plates with nasturtium leaves. Spoon salad onto leaves.
Servings 0
* Percent Daily Values are based on a 2,000 calorie diet. Your daily value may be higher or lower depending on your calorie needs.