Hi, I live in South Texas and we have a variety of white argemone (prickly poppy), that grows wild in the countryside. Occasionally, you'll find a pocket of yellow, or purple flowered ones. I have tried without success to germinate the seeds of these colored mutations. Do the colored varieties produce sterile seed? Or is there a seed treatment you could recommend? I've grown argemone mexicana from T& M without problem and it reseeds without any special treatment. Any suggestions? Charles Edelman South Texas Run007CB@aol.com