5-6"H    6" Blooms
 
mid-late season bloomer, with a long strong stems and puts on a showcase of blooms!  That is one plant in showing in the pix!  Even if you aren't into semi-cactus blooms, her colour and abundance will win you in.  
Side note...The breeder  of the Kenora series of dahlias grew up in Kenora, which is in North Western Ontario, not all that far from where I grew up.  Im searching out all the Kenora dahlias. Let me know if have any to trade/sell.