I have never really been successful with growing petunias or other bedding plants from seed, usually because I leave it too late as I don't heat my greenhouse.
This year though, I decided for the first time, to buy some mini plug plants that were very cheap from T & M. They were a special offer of red, white and blue petunias. When they arrived they really were tiny, though they did have really good roots. I potted them up and now have many trays full of big petunia plants. I didn't lose any of them..
Petunia seeds are quite expensive to buy and it also costs quite a bit to buy plants fully grown from garden centres. For those of you who haven't tried the mini plugs, I really recommend them. My only question now is where to plant them all. :-\ ;D ;D
Quite agree with all you have said Pauline. This is the only year I haven't bought any although I have mainly bought busy lizzies to fill the 110 holes Charlie made in the water butt. I had gift voucher Mother's Day for Delfland Nurseries so this year I will use those.