What Makes Cannabis Purple

cannabis color genetics explanation

Cannabis turns purple due to anthocyanins, water-soluble pigments in the flavonoid group. These compounds—like cyanidin and delphinidin—create the purples, blues, and reds in cannabis flowers. Both genetics and the plant's environment influence this coloration. Factors like cold weather trigger purple shades, with strains like Grandaddy Purple naturally inclined towards these tones. Cyanidin gives red and violet hues, while delphinidin contributes to purple shades. Different ratios of these compounds result in varying shades of purple. Genetic predisposition, environmental conditions, and the plant's genetics all play a part in the vibrant coloration of cannabis flowers.

Key Takeaways

  • Anthocyanins, like cyanidin and delphinidin, create purple hues in cannabis.
  • Genetic predisposition determines purple color expression in specific strains.
  • Cold temperatures trigger purple pigmentation in combination with genetics.
  • Cyanidin produces red and violet hues, while delphinidin contributes to purple shades.
  • Environmental conditions, like light exposure and pH levels, impact purple intensity.

Anthocyanins: The Purple Pigment Explained

Anthocyanins, as water-soluble pigments within the flavonoid group, are the key compounds responsible for producing the striking purple, blue, and red hues observed in cannabis flowers. These pigments, specifically cyanidin and delphinidin, play an essential role in the coloration of purple cannabis strains.

The presence and levels of anthocyanins in cannabis plants are influenced by a combination of genetics and environmental factors. These compounds not only contribute to the aesthetic appeal of the plant but also provide antioxidant properties.

Moreover, the coloration of cannabis flowers can change based on the pH levels of the environment, highlighting the intricate interplay between genetics, environment, and pigmentation in determining the vibrant hues seen in various cannabis strains.

Genetic Factors Influencing Cannabis Coloration

Genetic factors intricately dictate the vibrant coloration of cannabis flowers, particularly influencing the expression of purple hues in certain strains. The presence of anthocyanins, unique to specific cannabis strains, is vital for the development of purple coloration. Strains like Grandaddy Purple possess a genetic predisposition to exhibit these purple tones. The interplay between cannabinoids, terpenes, and genetic factors contributes to the distinctive colors seen in cannabis flowers. Environmental conditions, such as cold temperatures, can trigger a color change in plants with the right genetic makeup. Understanding the genetic basis of purple coloration in cannabis strains sheds light on the intricate processes that govern the plant's appearance.

Genetic FactorsInfluence on Cannabis Coloration
AnthocyaninsEssential for purple hues
Genetic PredispositionDetermines color expression
Purple ColorationResult of specific strains
Color ChangeTriggered by environmental conditions
Grandaddy PurpleNaturally predisposed to purple tones

Environmental Conditions and Cannabis Hue

Cold temperatures play a significant role in inducing the striking purple hues seen in cannabis plants, particularly during the flowering stage of growth. While genetic predisposition is a factor, gradual temperature reduction before harvest is vital for enhancing the purple pigmentation.

Environmental factors, like light exposure and pH levels, also impact the intensity of the purple color in cannabis plants. During the flowering stage, the plant's metabolic processes are altered by the colder temperatures, leading to the production of anthocyanins responsible for the purple hues.

Ensuring the right balance of environmental conditions is essential for maximizing the expression of purple pigmentation in cannabis plants. By manipulating these factors, growers can influence the vibrancy and extent of the purple coloration in their crops.

Role of Cyanidin and Delphinidin in Color

Cyanidin and delphinidin, as common anthocyanins found in plants, are essential components responsible for producing the distinctive red and violet pigments observed in various botanical species. In cannabis strains, these pigments play an important role in the purple color seen in cannabis flowers. The varying shades of purple in cannabis plants are a result of the different ratios of cyanidin and delphinidin present. Understanding how these anthocyanins work helps explain the specific coloration of purple cannabis varieties. The table below highlights the significance of cyanidin and delphinidin in determining the purple color of cannabis flowers:

AnthocyaninRole in Coloration
CyanidinProduces red and violet hues
DelphinidinContributes to purple shades

Factors Determining Purple Cannabis Strains

In the study of cannabis cultivation, the factors influencing the development of purple strains are pivotal and interconnected. Anthocyanin pigments, water-soluble compounds found in marijuana plants, are primarily responsible for the purple hues. Genetic factors play a crucial role in determining the presence and concentration of these pigments, influencing the intensity of the purple color in cannabis flowers.

Environmental conditions, such as temperature fluctuations and light exposure, can also affect anthocyanin levels, leading to variations in the shades of purple strains. Purple cannabis strains exhibit higher levels of antioxidants due to anthocyanins, providing potential health benefits.

While color doesn't impact potency or effects significantly, terpenes and cannabinoids remain the key players in determining the overall characteristics of the strain. Climate change may further alter the expression of these compounds, influencing the color profile of purple cannabis varieties.

Does Adding Cannabis Stems to Tea Change the Color of the Cannabis?

Yes, adding cannabis stems to your tea can definitely change the color of the cannabis stem tea recipe. The stems contain cannabinoids and chlorophyll, which can infuse the tea with a green tint. It’s a great way to use every part of the cannabis plant for consumption.

Frequently Asked Questions

What Causes Cannabis to Go Purple?

Genetic mutation, anthocyanin production, environmental factors, temperature variations, nutrient imbalance, light exposure, pH levels, stress response, growing techniques, and harvest timing all influence cannabis coloration. These factors interact to create the purple hues in cannabis plants.

What Deficiency Causes Cannabis Leaves to Turn Purple?

Nutrient imbalance, environmental stress, genetics, and anthocyanin presence contribute to cannabis leaf discoloration. pH levels, light exposure, temperature fluctuations, water deficiency, and soil composition impact color changes. Understanding these factors is essential in managing purple hues.

What Cannabis Strain Is Purple?

Purple Haze, Granddaddy Purple, Purple Kush, Purple Punch, Purple Dream, Purple Urkle, Purple Diesel, Purple Skunk, Purple Widow, and Purple Frostbite are strains with varying purple hues, influenced by genetics and environmental factors, offering unique aesthetic qualities.

What Temp Does Cannabis Turn Purple?

Maintaining consistent cool temperatures during the flowering stage can enhance purple color development. Sudden temperature drops may stress plants, affecting purple coloration. Lower temperatures trigger anthocyanin production leading to purple hues intensifying as harvest approaches. Environmental factors play a significant role in color pigmentation.


To sum up, the purple coloration of cannabis is primarily attributed to the presence of anthocyanins, a group of pigments responsible for the purple hues in plants. Genetic factors, environmental conditions, and the specific presence of cyanidin and delphinidin also play significant roles in determining the color of cannabis strains.

Understanding these factors can help breeders and growers manipulate the coloration of cannabis for desired effects and aesthetics.