Someone actually asked me this just the other day!
Aside from how lovely they look I'm not a mega fan of coloured strains, just for the taste really.
Maybe it's psychological or something, we know through testing that the potency isn't affected at least on the couple of strains we had analysed that had a purple and green pheno,
I prefer One's that change with cooler temps from the fan leaves in like the sour stomper f1's , but the buds remain a neon green I like, but ones that purple from the inside to out through the buds.. I'm not so into thesedays.. just personal preference really.
But if we came across a KILLER purple strain...in a photoperiod, I might be tempted to have a play!
Today i've been out and done the following pollinations:
GG#4 x Ripley's OG
GG#4 x Grape Crinkle
Chem4d x chemdogging
Yeti OG x Triangle
Yeti OG x Bear OG
Casey's x SODK
Super Lemon Haze x SODK
Super Lemon Haze x SKywalker Auto
Fingers crossed we get some seeds to play with from all of those.
I'm also going to make ECSD x Sour Stomper, and ECSD x SODK, those cuts are indoors and been into 12/12 for about a week.
Cheers, mitch