Any idea why Pink, Orange, and Purple Roses aren't producing more?

[nintendofan61]

I have black and blue, they produce 1 or 2 each day. But for some reason, my pink, orange, and purple will not. I'm doing the same thing. One day, my orange produced yellow! >_< and one day my pink produced black! Any idea why there not producing like black and blue?

 

[talisheo]

It is just luck, and if you tt you decrease your odds of getting good hybrids.

 

[Punchyleaf]

It depends on the genes of the flowers too ._.

I can't go into depth with explaining because there is no 100% full proof way to breed successfully
But I've noticed trouble with pink tulips and pink cosmos breeding and my purple tulips as well. It's confusing and weird lol