Evelyn, they aren't hard to grow. I have done it before, and it is fun. You don't know what you will get. Last year, I had self-sowers that made it to be full sized plants for some reason because in the past, the self-sown plants never had enough time to grow big. The most fun seedlings I grew were from seed collected from named cultivars. Some came pretty close to true and some were duds.
This plant I kept alive for a couple of years - Mighty Mosaic and it can be grown from seed. I am tempted to try it one day but if I find a plant again, I will buy it instead - unless the price of coleus plants keeps going up. This plant I bought on clearance for $2. It was small. This is after overwintering it for at least a year, maybe more. It is gone now.
