PlantFiles: Common Cosmos, Mexican Aster
Cosmos bipinnatus 'Psycho'

I share the same view with the others, this plant is often called 'Psyche White'. I have read quite a lot of seed catalogs and have never found any entry for 'Psycho White'.

The plant blooms on the late side, but is more resitant to rots than the species. The flowers are large, pure white, and semi-doubled. One unusual attribute to this Cosmo, is that as the plant ages the "ruff" (the semi-doubleness) around the center of the flower dissapears!

A lovely, easy to grow flower, somewhat larger (and to me more attractive) than the singles. The seeds I received were labeled "Psyche White". Not to start an argument over the name, but it seems to me that Psyche (who was a beautiful maiden in Greek mythology, beloved by Eros-or Cupid in Roman mythology) would be more appropriate than Psycho, although I found many references using both names. Interestingly, there is another entry in the PF for "Psyche Mix" Cosmos.

I love this cosmos. Very showy and nice cut flower.
Not sure where first poster got the name "psyche" but if you google it under both "psyche" & "psycho" more listing come up for the last than the first name.

The semi-double flowers are more graceful to my eye than the singles of "Sensation" or "Gazebo". Select Seeds offers the all-white selection from the Psyche mix. That's Psyche, not Psycho -- I wonder what the original poster thought the name signified?