Purple Cannabis: Top 10 Strains

Growing potent and tasty marijuana plants is the goal of many growers, but for a lot of home growers there's another big factor: looks. Purple cannabis strains have been around forever, but this type of Purple genetics is becoming more and more popular. In fact, you'll find more and more crosses with this trait in seed bank catalogs.

At Bulk Genetics, we walk you through the traits of purple cannabis plants and explain how to encourage purple colors in the buds of your plants. Finally, we offer you a list of the best Purple cannabis plants available in the Bulk Genetics seed catalog.

Why are some cannabis strains purple?

For a marijuana strain to turn purple, it will have to be written into its genetics. The purple color results from the accumulation of anthocyanins, so for the Purple color to develop during maturation, the genetics must have the genetically controlled metabolic potential to produce anthocyanins.

The intense green of chlorophyll often masks the color of secondary pigments. Therefore, for purple colors to appear, growing conditions will also have to allow for this, including cool temperatures during the night periods. The chlorophyll will begin to lose its color at the end of the season to reveal the lilac colors present in the plant tissue.

Purple colors can appear on all parts of the cannabis plant. From the leaves to the main stem and branches, but also in the buds, of course. Now there are a large number of purple cannabis strains, with a wide selection in the Bulk Genetics catalog at the best price.

However, some genetics, even applying all the conditions that can encourage color, will not be able to show colors other than the classic green of marijuana strains.

How can you encourage the appearance of purple colors in your cannabis plants?

To enhance the purple colors in purple cannabis strains, many experienced growers recommend organic fertilizers. Flushing the plants well and making sure the plant uses all the nitrogen in the soil will encourage purple colors in the plants. It is important to avoid adding nitrogen too late in the crop to ensure that the plant has time to use up all the nitrogen. Flushing the roots is crucial, and you can use plain water or a flushing solution from your local hydro store.

A large temperature difference between night and day is very important for the development of purple colors. A difference of about 18 °F is more than enough. So if your tent runs at 77 °F with the lights on, aim for around 59 °F with the lights off. Note that all growing conditions must be well controlled to avoid problems. This will help bring out the purple trait in strains that carry it.

What are the effects of purple cannabis?

When a genetics offers both green and purple phenotypes, you'll notice in most cases that the purple cannabis phenotypes will be less potent. This is not always the case, and some purple marijuana genetics are particularly potent, as is the case with modern hybrids from the United States (Purple Punch, Girl Scout Cookies...).

What are the best purple cannabis strains?

Here we offer you a list of the best purple cannabis strains available in the Bulk Genetics cannabis seed catalog. Purple feminized and autoflowering cannabis strains for the most beautiful lilac colors in your grow, indoors or outdoors, at a cheap price.

5 feminized purple cannabis strains

You probably already know a few of the photoperiod purple strains below, and no wonder: they're all productive, tasty and incredibly beautiful.

Mendocino Purple Kush

It represents the meeting of several American genetics. It's easy to grow and handles the usual problems well that can arise during cannabis cultivation, both indoors and outdoors, which is why it is one of the best-selling feminized bulk seeds in our catalog. The buds of Mendocino Purple Kush are large and very compact, covered with a thick layer of resin. The purple colors make Mendocino Purple Kush buds really irresistible.

New York Diesel

One of the best purple sativa marijuana strains available on the market, it is also very easy to grow and offers very high yields. The flavors of New York Diesel are easy to recognize, with hints of diesel for the uplifting and energetic effects typical of the best sativas.

Purple Kush

A classic purple cannabis strain. Easy to grow, it has a very relaxing feel, ideal for unwinding after a long day. The sensations are very potent and are best consumed at night, with nothing planned afterwards. The harvest of Purple Kush is spectacular, with compact and extremely resinous buds that are also bulky and rock hard.

Purple Punch

A modern cannabis strain, very popular in the US, that has been used in many crosses to add the purple trait. Purple Punch is very easy to grow and hardy, and is equally at home outdoors. Harvest is fast and especially abundant.

Red California Orange Fast Version

Extremely fast, can be harvested in 50-55 days, and requires no special care. Use a carbon filter, though: its high terpene content makes for very pungent buds. The Tangie heritage of the Red California Orange Fast Version comes through with sweet and fruity flavors accompanied by intense purple colors.

Purple Haze 

Perhaps the most popular Purple cannabis strain available in the Bulk Genetics catalog at the best price. A classic in cannabis breeding, despite its Sativa heritage, Purple Haze offers fast flowering for very potent harvests that are suitable for any time of day.

5 autoflowering purple cannabis strains

If you are a lover of autoflowering bulk seeds and you like purple strains, don't miss these 5 autoflowering marijuana strains.

Banana Purple Punch Auto

A modern American strain, combining Banana OG and Purple Punch. With exceptional vigor, it grows very fast and offers a particularly large yield for an autoflowering plant. Banana Purple Punch Auto retains a typical Indica size, producing compact and very tasty buds.

Blueberry Auto

One of the most classic purple cannabis plants in autoflowering format so that all growers can grow it, available at the best price in the Bulk Genetics catalog. Blueberry Auto is the result of DJ Short's famous cross to produce purple harvests with intense flavor.

Blue Kush Auto

A cross between a Blueberry and an OG Kush, Blue Kush Auto produces compact, bulky buds for very high yields. The effects are potent and mostly cerebral, with a surge of energy for happy and uplifting sensations.

Red Skunk Auto

An autoflowering plant that remains compact and discreet, despite its intense purple colors. Red Skunk Auto is an indica dominant strain that can be enjoyed by both novice and experienced growers. The effects are energetic and creative, and provide a very relaxing sensation.

Red Cherry CBD Auto

Finally, for fans of CBD-rich marijuana strains who also want to enjoy beautiful purple colors in their grow, Red Cherry CBD Auto is a good choice. With THC concentrations of less than 0.5%, it won't get you high. This doesn't stop it from offering very smooth and sweet flavors. The consumer can enjoy berry, earthy and fresh flavors.