Bupleurum rotundifolium 
This flower is very unique.  It was love at first sight for me and bupleurum!
It is a fabulous filler for and early summer bouquet.  Plus, its roots are incredible medicine!  It self seeds wonderfully, so make sure you let a few plants do their natural dance and you will get to enjoy them year after year.
 
Plant Type:  Cold Hardy Annual
Plant:  Warmer Climates- late Summer or early Fall || Cooler Climates- early Spring
Germination:  14-21 days at 55-65 F
Height:  2-3ft
Light Preference:  Full Sun/Part Shade         
                                                                                                                                                                          
 GROWING INSTRUCTIONS
Direct sow in the fall in warm climates or in early spring. Cover lightly with soil as light is needed for germination.
Plant Spacing: 9"-12"   
Seeds per packet: Approx 25