Seeds from this Thunbergia alata Black Eyed Susan vine Spanish Eye. This annual vine grows very rapidly covering a trellis easily in a couple of months and is very easy to let just wander. The peach colored blossoms with a black center cover this plant from mid summer until late fall and always seem to have some flowers in blossom. These will self sow as you would many annuals and in the spring you will have as many as you would like and lots to share with your gardening friends. Zones 9 to 11.