Blackwater Strain

Blackwater strain is a powerful medicinal strain that has become popular even as a recreational smoke.

This strain has immense medical powers and is among those indicas that should be used at night or on a day when you have nothing important planned and you need not operate any heavy machinery.

Blackwater is an almost pure indica that was bred out of Mendocino Purps, crossed with San Fernando Valley Kush.

This strain is a smoke that is recommended for the evening as it is a heavy sedative that might make you feel like you are stuck to the couch.

This indica is a real treat and is also very useful as a medicinal strain.

Blackwater is a powerful relaxant and can provide the even more strung out individual with a calm and soothed mood.

This strain was awarded the 3rd place in the indica category at the 2014 Los Angeles Cannabis Cup.

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Blackwater weed strain attributes:
ORIGINMendocino Purps mixed with SFV OG Kush
EFFECTSrelaxed – 10
sleepy – 7
happy – 5
euphoric – 4
energetic – 4
dry eyes – 4
dizzy – 4
headache – 3
paranoid – 1
FRAGRANCEearthy, grape, lemon, pine, sweet
FLAVORSearthy, woody, pungent, berry, pine, sweet, lemon
MEDICALpain – 10
stress – 10
insomnia – 7
muscle spasms – 6
lack of appetite – 6
FLOWERING TIME OUTDOORSlate September to early October
CBD %1%
INDICA / SATIVA %20% / 80%
OUTDOOR YIELD19oz/ plant
CLIMATEwarm and temperate outdoor climate
RESISTANCE TO DISEASEresistant to common molds and mildew

* 10 is the highest
* 1 is the lowest


Blackwater cannabis strain is an award-winning strain for many reasons.

This almost pure indica strain is potent and creates a high that is strong without being overwhelming. It is an effective sedative, that can leave you feeling relaxed, even on the most stressed out and consuming day.

We don’t currently sell Blackwater seeds. Check out other sativa dominant seeds in our marijuana seed bank.

This strain can make you feel sleepy, especially in higher doses.

Blackwater strain is recommended mainly for more experienced consumers, as it is stronger than your average, and is best enjoyed when you have a little knowledge and experience yourself.

Blackwater Effects

Blackwater is a happy smoke and can make you feel giggly and invigorated, and is fun even when you consume it on your own. It will make you feel euphoric, while slowing you down, but in smaller doses it can give you just the right boost of energy


Blackwater strain is very fragrant and its scent is not one that is easy to hide.

This strain smells earthy and like sweet grapes, enveloping you in a cloud of its aroma, from the moment it is near you. This strain also has hints of lemon and pine in its scent, adding to its appeal.


Blackwater tastes just as tantalizing as its aroma suggests. This indica contains traces of an earthy berry that is mixed in with lemon and pine. This strain can taste pungent on the exhale and is sure to leave a distinctly sweet and sour note on your tongue on the exhale.

Adverse Reaction

Blackwater strain can be very strong, meaning there is a good chance that it has some side effects that come with its high. This strain is likely to leave you feeling dehydrated and thirsty, a feeling that often occurs with dry and itchy eyes.

Blackwater Adverse Reaction

This strain may also make you feel dizzy, especially in higher doses.

Blackwater can leave you with a mild headache, which is often associated with the feeling of being dehydrated. This strain can in some rare cases make you feel paranoid, especially when it is consumed in higher doses.

Download my free marijuana grow guide and start growing Blackwater strain


Blackwater has a number of useful medical uses, and is popular everywhere as a powerful sedative. This indica can swiftly soothe symptoms of chronic pain, making you feel more relaxed physically, which adds to its pain-relieving properties.

We don’t currently sell Blackwater seeds. Check out other sativa dominant seeds in our marijuana seed bank.

This indica may also help long-time sufferers of chronic stress find some calm and balance within themselves, making it easier to treat their condition.

Blackwater can help alleviate feelings of dismay and frustration, allowing those who suffer from mental health issues such as depression to find solace.

Blackwater can also be an effective way of treating arthritis and other inflammation-related ailments. Muscle spasms and joint pain can be alleviated with the help of this useful strain. Cancer patients may restore their lost appetite with the use of this indica after undergoing chemical radiation treatments.


Blackwater has buds that grow with specs of deep purple, especially in the right conditions. This strain is easy even for novice growers to cultivate and can be expected to yield quite generously, especially in a sheltered yet well-lit outdoor environment.

Blackwater Growing

Flowering Time


Blackwater can be expected to take up to 9 weeks to flower and be ready for a harvest. This strain can yield an average of about 16 ounces of fresh bud per square meter planted during a hearty harvest.


This indica can be expected to yield an average of about 19 ounces of weed per plant cultivated. Blackwater should be ready for a harvest around late September to early October, as long as it is kept happy in a warm and dry space.


  1. Mendocino Purps
  2. SFV OG Kush

FAQ About Blackwater Strain

What is the Blackwater strain yield?

Blackwater yields 16 oz/ m2 indoors and 19 ounces per plant outdoors.

How much THC does Blackwater have?

19% THC.

What are the origins of the Blackwater strain?

Blackwater was created from a mix between Mendocino Purps mixed with SFV OG Kush.

Have you ever smoked or grown your own Blackwater? Please let me know what you think about this marijuana strain in the comments below.


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Mr Robert Bergman PhD


Robert Bergman is an Amsterdam-based marijuana grow expert who has years of experience from small grows to massive operations ... See profile

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4 comments on “Blackwater Strain”

  1. Just pulled off one in Maui. Everything said about it is true. But not a easy strain to grow, as the bugs love its flavor as well. Tight hearty nugs that knock your ass down. Finished in 9 weeks but Hermed on the bottom branches a couple days after it was raining for two days and there was hardly any light rendering me to think it was environmental and not genetical. I’m hoping they are feminized. One of the top three strains I grew.

  2. Amazing strain. Smells amazing on exhale. Best used in a vape. Make no plans. . You ain’t going anywhere.

  3. Old timers consider Blackwater to be “real” marijuana. Smells right, tastes right, knocks your socks off.

  4. This is the most powerful, best tasting couch lock weed I have ever smoked in my life.