Yes, leave the flowers in the garden and allow to dry on the stalks, then cut the flowers for indoor arrangements. of if(MSFPhover) { MSFPnav6n=MSFPpreload("_derived/Interactions with other species.htm_cmp_Water110_hbtn.gif"); MSFPnav6h=MSFPpreload("_derived/Interactions with other species.htm_cmp_Water110_hbtn_a.gif"); } gallant.kirk@students.uwlax.edu. // --> . Members of the Allium genus, including the common annual onion (Allium cepa), often live in the vegetable garden. The flowers are frequently borne in spherical flower clusters and produce black seeds in dry capsule fruits. // -->