I like growing purple strains,  as I don't smoke it's hard for me to say anything about the taste lol. The smell of them I can say I really like how different some of them are.   
Talking about Black Rose well my soil has to much nitrogen in it as it's reused soil, and it's caused a problem. I do think purples take less nitrogen. 
 
Everyone of the black rose has/had  a banana showing so I chopped them.  
As for the lambs bread doesn't look like any seeds are growing after all.  :(