AHS database lists it as a tetraploid. There are two registered children, but they are listed as diploids. Can someone advise on how this could be? Is Blue Venom really a tet?

Thanks!

Sounds like a mix up. Maybe contact Elizabeth Shooter?

It seems to be listed as a diploid by the hybridizers.
Marietta Gardens website http://www.mariettagardens.com... indicates:
BLUE VENOM
(Elizabeth O. Shooter, 2002)

28 ML Re VFr SE. #90-36A. 5 - 2 3/8 - 1 1/2. Diploid.

A shocking contrast is this wine red and blue with a 1 1/2" eyezone of blue lavender and a 2" center of chartreuse. Outer 1 1/2" of petals are wine red. Triangular form with all segments recurving. Very creped texture; excellent substance. Segments have a thread of chartreuse around edges. Magenta veins on petals and eye. A unique and appealing color combination. Top branched, 12-14 buds.