Posted: 02/12/2014 at 13:09
I grew both the red and yellow forms from seed. The yellow is by far the best plant, very tall and covered with large flowers in its season (at the moment it's dropping its leaves all over the place!). The red ones have disappointing small flowers and only grow to a couple of feet. So probably worth only buying in flower to make sure you get a good one.
I've got plenty of seeds of the yellow form, send me a PM if you want a few.