Genetics be damned; I went through and set all 28 values to “2”. That got me a rather unremarkable squat black thing that grew multicolored squarish flowers. I then set all the values to “8”.
I recommend Plant Eight. It makes an excellent stock with which to combine any of your various creations for delightful results.
ETA: Plant Nine does appear to be, as might be expected, from Outer Space. Sadly, it does not differ enough from Plant Eight to be interesting in its own right.