We grow three beautiful colours of (perennial) balloon flowers here at The Secret Garden - "blue" (which is really a purple), white (not pictured) and blush (not pictured).  This mix will include seed from all types as they were all grown in the same garden area so they may have been cross pollinated.  This mix will be much heavier on the purple than the other two colours.  Sow and be surprised!
 
Approx. 100 seeds/pkt.  Cold moist stratification is suggested to break seed dormancy but we have seen excellent germination rates without this treatment.