How do the green buds go purple? Purple is actually the second most common color for cannabis and can be achieved easily by a seasoned breeder with a cursory knowledge of genetics.
The purple color usually appears upon maturation in strains that have the initial genetic ability to generate anthocyanin pigments. This substance is the main factor for coloration, however, without the needed conditions, the purple color might not even show.
The Hindu and Colombian Kush can easily develop anthocyanin pigments in the end of the production cycle. Certain environmental conditions must be met to get that purple color, such as low night temperatures. Another cannabis strain, known as Purple Orangutan, is the winner in colorization. This sort has some of the strongest tones of blue and purple.
Another important factor can’t be missed, namely the right temperature. It influences the chlorophyll and prevents it from consuming the other pigments. The perfect time for this process to take places is late in the season, when chlorophyll breaks down easily to free the stage for other colors.
Most of the other colors that show up on weed are presented by a single pigment – carotenoid. Brown, yellow, orange and red can be widely seen in marijuana, but mostly on the leaves and calyxes of the plant. Again the green chlorophyll starts to fade just to be replaced with other pigments. Most of the time, the colors are created from various genetic combinations. For instance, the gold color develops from orange and yellow pigments. Red strains are actually reddish brown, because the mix of anthocyanin and carotenoid. Some of these pigments can be almost red in color as they appear in the petioles in ripe flowers.