Dear Susan, thank you for your kind comments. I used to used to plant thousands of Canna's when I was on the Parks Department as a mere Apprentice. They were used as "Dot plants" in the summer bedding. Of course the colour had to be careful done to match the colours of the carpet bedding, so that was always a worry. I bought a cheap packet of mixed Canna seed from Thompson & Morgan last year. It had twenty seeds in and after sandpapering them a bit on the seed coat I soaked them for 24 hours. I managed to get 16 nice plants from the packet which I was quite pleased with.
I bring them into the cold Greenhouse in the winter as I have to put the winter bedding in and you cannot do that with them resting underneath the soil.
I found this wallflower growing out of some rubble, so here is a picture of it for you.
Regards from England.
Neil.