1. A : I lightly prune verbena after each round of flowers. 2. It seems that lemon verbena 's time has finally come. 3. Remove lemon verbena leaves from strainer, and add to juice. 4. Blend on low speed and slowly drizzle in the verbena oil. 5. Take, for instance, prairie verbena ( Verbena bipinnatifida ). 6. Take, for instance, prairie verbena ( Verbena bipinnatifida ). 7. By late September, Sedum Autumn Joy blooms amidst Verbena bonaniensis. 8. 1 / 3 cup loosely packed lemon verbena leaves, washed 9. No _ he showed slides of bright yellow patrinia with lavender verbena ! 10. Red valerian, verbena , scabiosa, and salvias are other favorites.