Consider the herbs and flowers of summer in your locale and how you might include them in your Midsummer celebrations:
Gather culinary herbs and steep them in boiling water to make magical teas.
Dry fragrant herbs and flowers (for instance, mint and rose petals, lavender and artemisia) and sew them into dream pillows or velvet pouches to wear as charms.
Make a wreath and hang it on your front door or wear it in your hair
Throw dried flowers or herbs you've collected over the year into the Midsummer bonfire.
Scatter rose petals in your bath water.
Decorate your doors and windows with greenery.
Serve a salad embellished with edible flowers.
Give your lover a potted plant with love notes tied to the branches.