Violet flower juice: Tightly pack 1 quart jar full of violet flowers. Fill the jar with boiling water, cover tightly and let steep overnight. Strain off juice. Discard flowers.
To 2 cups violet flower juice, add lemon juice and powdered pectin. Bring to a boil and add sugar all at once. Bring to boil again and boil hard for one minute. Skim off foam, ladle into jars and seal. place in boiling water bath for 5 minutes.