Lorraine, I would plant the seeds after they start making roots. As Rad mentioned, you need to cut a little ways into the seed with a file or dremel, etc. Put the seed in a container oif water and put it in a sunny warm place. You should be ready to plant the new plant within 3 or 4 weeks, so I would estimate putting the seed in water about 3 weeks before warm weather in your area. Also, if a seed floats, chances are it is not viable. Seeds should be plump and sink in water. They will also be hybrids and not the same as plant as the mother plant. They will be a cross from it.