GMSgrowsanswered grow question 3 years ago They will amber, some strains just don't. So your correct to ask. Now if your waiting for the trichs to change just remember. The thc doesn't increase past the point when the trichs turn white or cloudy., its just the effects that change. I myself don't like couch lock weed, so I take my girls at the first sign of amber., or when most have turned white or cloudy. Cheers