Leave Fennel to Flower 🌱🌼🐝 Even though Florence fennel is generally grown for its bulbs and harvests as an annual, with herb fennel being grown as a perennial, I always leave a few Florence fennel plants in the ground, usually at the edges or corners of beds, to flower and then set seed. 😊🌼 The flowers are loved by many pollinators and beneficial insects such as bees, butterflies, hoverflys, parasitic wasp and lady birds, that help maintain a balanced vegetable garden and reduce pest number