Do you know what the GPM-4 in the ID of this hybrid comes from? I have 5 different variaegatum hybrids and all are labelled in a similar way: GPM-4, GPM-17, GPM-24 and so on...
Ramon, the best way to find out is to check with the grower, or the the breeder of this particular sowing. It could be the initals of the company, the grower, or any number of things. It sure is a pretty thing, isn't it.