Why do some cannabis plants turn purple?

Why Do Some Cannabis Plants Turn Purple?

If you are a patient or caretaker of your loved one taking medical marijuana for their medical conditions, you might have come across purple cannabis. The purple cannabis flowers are delightful to look at. Due to the appealing purple color, many patients prefer cultivating them over green ones. In addition, some plants turn purple on their stems and stalks. There is some confusion about their characteristics due to the color difference. The growth times of marijuana plants vary based on their environment and the chemical changes. The article discusses the myths and facts about the marijuana plant that turns purple and related information about purple marijuana.

Why does some cannabis acquire the beautiful purple?

The high quantities of “Anthocyanins” in marijuana make it purple, and the purple hue varies based on the amount of this compound in the plant. Anthocyanins bring the varied colouration of purple and blue hues to the leaves and buds. The intensity of the colors gives the shade of dark green and black to the plant.

The environmental changes affect the production of anthocyanin in the plant. The difference in the environment includes pH levels, temperature and light.

Especially the colder environment breaks the chlorophyll pigment of the plant and brings out the hues present inside. In addition, plant genetics plays a significant role in bringing the purple hue. Plant genetics decides the number of Anthocyanins in the plant. Therefore, to bring the purple color throughout the plant, the amount of anthocyanin produced in the plant has to be higher.

Therefore, climatic conditions and plant genetics are considered crucial factors in bringing out the desirable purple cannabis.

As the plant matures, the purple hue of the plant pops out. However, in some plants, the purple color comes due to cross-breeding or processing.

Why do the stems and petioles turn purple?

Purpling of the stems and petioles are not due to the ‘Anthocyanin’ production of the plant. They are due to phosphorus and magnesium deficiency. If you expose the plant to intense UV light, it tries to protect the stems and petioles by turning them purple.

However, other reasons such as genetics, stress and nutrient deficiencies are considered significant reasons for purpling of stems and petioles.

What can you do to grow purple marijuana?

  1. Create a colder environment for the plant: The colder climate helps the plant break chlorophyll and bring out the purple hue. But maintaining the right temperature is essential to prevent the freezing of the plant.
  2. When should you set the colder environment for the plant? The plant has to fight to start sprouting and grow more buds. Therefore they require stable temperature while increasing. It also maintains the stress level of the plant. However, you can set the colder temperature before the harvest when they are matured.
  3. What is the best time to set a colder temperature, and what is the right temperature? Setting colder temperatures during the night or at darker times is effective. You can reduce the temperature gradually. It can be a room or a temperature-controllable place. Also, you should check the temperature is maintained at 50’F or 10’C. Taking a temperature below this could harm the plants.
  4. pH levels: Cannabis plants acquire purple because of Anthocyanins pigment in the plant. The pigment can be affected by varying pH levels. Therefore, the plant brings out various colors based on its exposure to different pH levels. This is because the stain reacts to the various pH levels. Thus if you expose the plant to a low to a higher pH level, the plant turns from red to blue-violet. Therefore you should maintain the pH level in moderation to achieve the purple hues.

What affects the potency of the marijuana plant?

Naturally, cannabis is dull green and categorized as male and female. The blossoms of the male plant are elongated and clustered along the leaves. The male flowers turn yellow before they die. At the same time, the female flowers are spike-like clusters and remain green for over a month after blossoming. In some cases, a plant has both male and female orientations.

The marijuana plants, obtained in the 1960s and 1970s, growing in Mexico have shown THC levels of about 0.4-1%. The levels are deficient compared to other marijuana grown in recent times. Recently, some specially developed marijuana plants show THC levels of 25%. The harvesting time and the type determine the potency of the marijuana plant. Patients are generally over-concerned about power. Therefore, consulting experienced doctors like KIFdoctors helps you go through the treatment without confusion.

Additionally, as the plant matures, the chemical composition of the plant also changes. In the younger plant, cannabidiol acid prevails in the plant. On growing, the acid is converted to produce the chemical cannabidiol. This cannabidiol gets converted to THC during the blossoming period.

The factors that affect the potency of marijuana plants are:

  • Growing climate and conditions
  • Genetics
  • Harvesting style and time
  • Type of the plant(male or female) and processing

How can you increase the THC content in your marijuana plant?

The THC of the plant cannot be increased, but you can get the maximum potential from the plant by growing them properly. The marijuana plant requires perfect environmental conditions for 70 days and then should be dried and cured to retain the THC. If you are worried about getting quality treatment, you should consult doctors from Kif Doctors. They help you get medical marijuana cards and recommend the best drugs for medical conditions.

What are the myths and facts about purple marijuana?

Marijuana plants have hundreds of chemicals, and only 109 are used for medical purposes. Growing the plant requires certain conditions to protect the chemical compounds. However, in making it purple, some people tend to carry out practices that harm the plant. Reading the below-mentioned myths about purple marijuana helps you come out of such practices.

Freezing turns cannabis into purple: Freezing of the plant increases the stresses of the plant and could lead to the death of the plant. Also, the strain should contain the purple gene to bring it out when exposed to the right temperature. Thus a theme without a purple gene doesn’t bring the purple hue when the temperature is too cold.

Also, treating the plants with ice-cold cooling or quick freezing procedures lowers the potency and can lead to the death of the plant.

Stressing the plant turns it purple: Any plant exposed to stress will not give results. They starve and die. Similarly, like any plant, marijuana also requires nutrients such as phosphorus, nitrogen and potassium for growth for desired growth.
Dying procedures help to turn them purple: this is against the planting method, and it might turn the exterior purple, but it doesn’t make sense.


You now know that the color of the plant doesn’t affect its potency of the plant. The next step is to get your medical marijuana card and initiate the treatment. You have to consult specialized doctors from Kif Doctors to ensure the best medical recommendation for your health condition. Kif Doctors are highly experienced in evaluating medical conditions and suggesting suitable consumption methods.

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