Today we have thousands of different genetics to choose from and we may also want to ask our favorite plant that in addition to a good production, flavor and smell, we cheer the view with unusual colors, leaving behind the green tones to move to different shades gradually, while disappearing the green pigments of chlorophyll, will go from the usual color to purple and even red, pink or orange.
The origins of the purple plants are not very clear, different stories are told, such as when Sam the Skunkman was in the 70's in California trying to shorten the flowering of sativa landraces, a phenotype emerged by mistake, so to speak, ended up being purple and from there came Purple Haze #1, a strain from Positronics bank that is a legend and is still grown today, especially by lovers of Sativas. If you are interested in more information, we leave you the link to the story of this strain clicking here .
But let's get back to our business. Why do certain types of cannabis genetics have the ability to change color and the vast majority do not?
Well, it has a relatively easy explanation, but we have to get into the field of molecular genetics.
If you study the genetic code of cannabis, you will see that it contains a certain volume of flavonoids, here is the key, since these are water-soluble pigmentation molecules, called anthocyanins.
These pigment molecules are mainly found in fruits, but depending on the strain you can even find them distributed throughout the plant, from roots to leaves. Anthocyanins are responsible for the change of colour of the vegetation in autumn as well as for the protection against ultraviolet rays or deterrence of predators attracted by the green of the plants.
Now that we know the cause of the coloration, let's see how we can help the anthocyanins which, depending on the cannabis strain, will develop more or less progressively, reaching their maximum splendor at the end of flowering and showing a purple color with the depth we expect.
There are strains such as Pakistan Chitral Kush, which already have purple leaves and bracts of reddish seeds. In most cases low temperatures influence the color at the end of the flowering of the plant, but this do not happen in all genetics. It should also clear that making the plant suffer by lowering the temperature too much can serve to reduce, in a directly proportional way, the production, which we assume will not interest any grower.
The nutrients also affect the color of the plant, so with a lack of phosphorus or nitrogen the stems of the leaves will turn purple, just like the veins of the leaves with the lack of sulfur.
Keep in mind that this only serves certain genetics, and depending on the phenotype, it may not have been inherited, and in the same package of seeds, some plants will change color and others will remain green as we are accustomed.
The Shiskaberry strain of Barney´s Farm is an 100% indica born from the crossing of a Blueberry with an Afghan, with THC levels of up to 26% with a very balanced effect. It has a robust and compact structure that develops a plant that grows wider than higher, is very adaptable and is therefore quite simple to cultivate. It produces up to two kilos per plant outdoors and is harvested one week before the summer. Its taste is of humid soil with a background of forest fruits, honoring its genetics.
To taste a sativa purple of very good quality we can offer you the Shaman of the Dutch Passion seed bank. This genetics comes from the crossing of a Purple #1 male and a first class Skunk female. This flowering plant of 7 to 8 weeks has a very high production and is designed for outdoor and especially greenhouse because it is incredibly resistant to mites as well as mold and rotten buds.
If you prefer to try an autoflowering, Fast Buds' LSD 25 looks spectacular. This genetics coming directly from the United States has a 20% THC, which as we already know, is a barbabrity for a specimen not dependent on the photoperiod. It is very compact and its production is up to a quarter of a kilo outdoors and half a kilo per square meter indoors ready to harvest between 56 and 63 days. Its flavor is spicy, with diesel notes and its high is quite psychoactive.