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Blueberry, a cannabis artwork that continues to evolve

Daniel John Short (DJ Short) is one of the longest living cannabis breeders in history. He began his career in the 70’s on the west coast of the USA, more specifically in Oregon, where he gathered some of the Landrace genetics that were starting to reach this country.

He was a big fan of the effect of sativas, especially from Thailand, but all the equatorial ones, so he worked with Thai Chocolate, Highland Thai, Colombian, Panamanian and Mexican among others. But those varieties had a problem in the latitude where he grew them, as they did not usually mature properly because the cold came before they finished their flowering cycle, except the Mexican ones that always ended perfectly.

For this reason he began to cross the Thai with the Mexican ones, and quickly found that the offspring in addition to maturing very well was better than the parents of the crossing separately, this is how a work of genetic handcraft began that still continues to improve nowadays.

✅ Genetics that make up the Blueberry variety

DJ Short’s favorite plant at the time was Oregon Purple Thai, which was a cross between Thai Chocolate and Highland Oaxaca Gold Mexican, which showed very striking purple colors and a spectacular effect. The powerful effect of the Highland Thai and its tropical fruity taste fascinated him too, but he had to find a way to bring those qualities together in a strain that could be grown without problems in his land, so he thought of crossing both with some fast flowering plant.

It was 1979 and at that time were acquiring much fame indica varieties, plants that brought the hippies from their travels through the Himalayas and were a revolution, as they finished flowering long before the sativas, were more homogeneous, produced more and were easier to grow.

Daniel John saw clearly, it was necessary to cross his precious sativas with these new varieties to get all the desirable features of each of them in plants that everyone could grow, and he set to work.

Image of young DJ Short holding an Oregon Purple Thai*

This is how the Oregon Blueberry was born

Initially, he crossed a male from Afghanistan with both the Oregon Purple Thai and the Highland Thai, which at that time had already changed its name to “Juicy Fruity Thai“. From the first crossing he took out a line that he called “Floral”, and among the offspring of this combination between Oregon Purple Thai and Afghani he found a new variety that has also gone down in history, the Flo.

This “Floral” line was crossed at F3 with the other combination between the Juicy Fruity Thai x Afghan, and from there came the Blueberry line, from which other great varieties would later come out, such as the Blue Moonshine.

Blueberry genetic line*

🔥 Seeds of the Blueberry variety

During the 80’s and early 90’s DJ Short refined both the “floral” and “Blueberry” lines. At the beginning he did not offer seeds of these genetics, at that time it was complicated to work quietly in the United States by its federal laws regarding cannabis. For these reasons he decided to emigrate to Europe in 1993, and take a chance in Holland, where the cannabis business was in its golden age.

He first worked for Sagarmatha Seed Company with Tony, another great breeder who offered to include some of his varieties in the catalogue, Flo, Blueberry and Blue Velvet. The idea was to germinate 25 seeds of each variety to select 2 good parents by genetics and from the cross of them get the seeds that would offer the bank. The problem was that he was not allowed to get too involved in the parental selection process, so DJ Short decided to change companies, and went to Dutch Passion together with Genk.

Dutch Passion’s Blueberry

In Europe they are certainly the best known Blueberry seeds, but that does not mean that they are the best. This time 50 seeds of each variety were grown, but just like in Sagarmatha, the DJ was excluded from the selection of parents, so he decided to leave as well.

The Blueberry contributed greatly to Dutch Passion’s international reputation. At that time the bank had copies of Skunk, Northern Lights and few others, but once the blue varieties were included in the catalogue sales shot up. Nowadays it is still one of the most demanded seeds of this Dutch brand.

Blueberry from Dutch Passion has been making a difference since the 70s, the golden age of cannabis, it stands out for its quality…

Partnership with Spice Of Life

Between 1999 and 2001 Mr. Short travelled several times from Holland to Switzerland, where the permissive cannabis laws had attracted great breeders like Shantibaba, Neville or Steve from Spice Of Life, and there he was amazed by the way they worked. Shortly afterwards he decided to move there to collaborate with Steve on a serious breeding project.

This was the first time he felt important in the old continent, he was able to make great selections and was given the responsibility he deserved as a father of the blue family. From this collaboration came varieties such as Blue Satellite, Moonshine Rocket Fuel or Rosebud, but unfortunately the Swiss laws became more complicated in 2002 and they had to leave the project in the Helvetic country.

🎯 Blueberry Sativa on its way back to America

Daniel John Short decided to return to the American continent after his experience in Europe. This time he went to Canada to collaborate with breeders like Chimera or Red from Legend Seeds, who used a very special Blueberry sativa male to pollinate many of the great clones that were around at the time.

From the breeder’s own point of view, Blueberry Sativa is the best expression of the hybrid he imagined when he started breeding his favourite plants. You could say that he had found his holy grail, but that doesn’t mean he gave up the Blueberry cannabic breeding at that time, absolutely not…

Image of a Blueberry sativa at the end of the flowering period

Blueberry F5, DJ Short Blueberry, F-13 and Vanilluna

Nowadays DJ Short continues his journey with the Blueberry, right now sharing a job with his son (JD Short) at the Old World Genetics seed bank. Among the genetics they offer, the Blueberry F5 and the Original Blueberry stand out, although the Vanilluna (a cross between two different Blueberries) and especially the F-13, the breeder’s own favourite strain, are also succeeding.

Catalogue image of the Old World Genetics seed bank*

👾 Growing the Blueberry indoors and outdoors

Crossing and backcrossing both on the same genetic line has caused some inbreeding degeneration in some of the Blueberry seeds offered nowadays. Dutch Passion’s Blueberry, which is the most widely sold in Europe, tends to grow slowly, it is difficult to root and usually produces deformed phenotypes.

In indoor cultivation it is a good variety to apply the SOG method, placing about 16 plants/3x3ft in 2.9 US gal (11 liter) pots with about 3 weeks of growth. During the pre-flowering usually doubles its size and the resin begins to appear from the third or fourth week of this cycle. It does not like excess moisture in the substrate, so it is good to wait for it to dry out before watering again, and admits average doses of fertilizers, which it prefers to be of organic origin.

Outdoors it behaves better, adapting to different environments without problems. Ideally, it should be planted in the ground, but if not, at least it should have more than 6.6 US gal (25 litres) of quality substrate. Grown with the help of the sun it performs better with several prunings and it can assimilate greater amounts of nutrients. When night temperatures drop below 50º F (15º C.) the Blueberry shows beautiful dark tones, reds, purples, magenta, etc. Being one of the most photogenic cannabis strains in history.

Blueberry from PEV Seeds, offers you a high quality effect, an exquisite taste, and the most striking colors you can imagine in a cannabis genetics…

Blueberry variety flowering time

Generally the flowering cycle of the Blueberry is between 9 and 10 weeks, although some specimens may come out faster, as some plants may need a few extra days. It also depends on the conditions of the crop and the hand of the grower, because when it has no limiting factors usually finishes earlier.

Outdoors or in a greenhouse it is cut throughout October in the northern hemisphere, and during the month of April in the southern hemisphere. You can delay or advance the harvest of the Blueberry to adjust the kind of power to your preferences, since being an indica/sativa polyhybrid the effect varies depending on its ripeness, the more mature it is the more sedative it will be.

Indoor and outdoor performance

It must be said that production is not the Blueberry’s strongest point, but it is also true that it compensates for this with the quality of the final product. In indoor cultivation you can get around 15.8 oz per 3x3ft (450 grams/m2), a bit more if you are an experienced grower, but it will never be the yield of a Skunk or Haze hybrid.

On the other hand, each Blueberry harvested outdoors can give you more than 35.3 oz (1 kilo) of weed, as long as they are planted in early spring and cultivated without restrictions of any kind.

Blueberry THC level

Very high, above 20% in some cases. This trait is inherited from the Thai plants, and is now very common, but 20 years ago it was unusual to find an indica shaped cannabis plant with such THC levels. This, combined with its unique terpenic profile, gives it a quality of effect that is highly valued by both medical and recreational cannabis users.

This is a special weed to enjoy at night, because it calms, brings peace, happiness and well-being but not too much laid-back.. The perfect company to watch a movie or chat with friends, enjoy a good book or listen to music.

Characteristics marijuana plant variety Blueberry

🧐 The Blueberry lineage, quality genes in all its crosses

Many cannabis breeders have used Blueberry genes to improve the qualities of other plants. The seed banks where DJ Short worked have continued to cross this plant with many others, and even nowadays there are many companies in the industry that offer this variety or mixtures of it in their catalogues. Let’s take a look at some of the best Blueberry crosses in history:

  • Blue Dream: Blueberry x Super Silver Haze
  • Blue Cheese: Blueberry x Exodus Cheese
  • Blue Widow: Blueberry x White Widow
  • Blueberry Cookies: Blueberry x Girl Scout Cookies
  • Blueberry Kush: Blueberry x OG Kush

⚠️ So, what’s the best Blueberry?

That’s very difficult to say, since everyone has their own particular preferences. From our point of view it is the Original Blueberry, although we have tried old selections from the 90s of the Blueberry from Dutch Passion that are very good too. For the breeder the best one is the F-13, even if it is not exactly Blueberry, but the many variations of this genetic line have created a wide range of possibilities that allow him/her to succeed with all kinds of users, so everyone would have a favorite Blueberry.

Who could have imagined that more than 40 years after he started crossing his favourite plants, DJ Short would continue to work on them? Probably no one, but they are still there, and what is clear is that he has left a legacy that will never die, especially the great Blueberry.

In this post we review the history, breeding, characteristics and all the information you need to know about the muse of the breeder DJ Short…

8 Tips for Growing Blueberry Cannabis

Blueberry marijuana is one of those strains that lives up to its name. It’s sweet and tastes just like blueberries! However, growing the Blueberry marijuana strain has particular issues that some growers don’t quite know how to master. These include long flowering times, peculiarities regarding nutrients, and the training techniques necessary to make sure the plant thrives.

The difficulty in ensuring you get a yield is well worth it, however. Blueberry is a strain with history, flavor and massive potential for making great bud. Let’s take a look at eight tips to make sure you grow Blueberry the right way.

Tip #1: Strain Review – Understand Blueberry’s Genetics

Blueberry is a West Coast staple strain, created by American breeder DJ Short. DJ Short was working with an exciting mix of landrace strains. These are indigenously grown strains such as Afghani from Afghanistan or Purple Thai from Thailand. Though previously limited to their local area, DJ Short helped bring them to the worldwide stage. He utilized a myriad of breeding projects to create his ideal strain. And thus, Blueberry was born.

Blueberry is admired not just for its high THC content, but for its excellent blueberry flavor as well.

Blueberry has a distinct taste and smell of fresh blueberries. Users commonly take Blueberry as a nightcap, or in preparation for relaxation. It is famous for its dreamy indica effects.

Too many indicas have an unfortunate reputation for causing couch lock, but Blueberry doesn’t have any of that kind of nonsense. Instead, you get a calm, peaceful euphoria that leaves you feeling ready to have a great night’s sleep. It is used as a pain reliever or a relaxant by many individuals. Read our in-depth Blueberry strain review by following the link below.

Everything you need to know ab…

Tip #2: Growing Difficulty – How Hard Is Blueberry to Cultivate?

Blueberry is a straightforward strain to grow. There are some mild quirks, such as the exact quantity and type of nutrients required. There are also a few special pruning techniques you can perform to make the yield as high as possible. However, Blueberry is ideal if you want to grow a strain with minimal effort and not worry about yield.

On the other hand, you must master a few tricks to maximize the yield. These methods could also increase the overall quality of the bud.

Tip #3: Growing Techniques

Blueberry is a strain that you must commit to growing in the open sun, as it really shines outdoors. However, it can get a bit weak at the start of the growth period. Therefore, it is wise to start it in your greenhouse early, and then plant outside once the last frost is gone.

Something special you can do to help increase your yield is to work on “topping” your plants. This means you trim away at the tops of the plant as it grows. The goal is to sculpt the growing Blueberry plant into a bush shape. If it grows into this structure, the plant puts more effort and resources into developing more buds. It may also take up less space than if it is trying to grow taller.

Additionally, regular pruning of the plant will help prevent powdery mildew. This annoying affliction loves to focus on top-heavy plants. To keep them happy, make sure they’re pruned regularly and given sufficient nutrients to ensure a high yield and a fertile plant.

Tip #4: Increasing Blueberry’s Yield

Blueberry cannabis has a pleasant reputation for incredibly high yields compared to other strains. A considerable part of this is the aforementioned bushy shape.

Indoors, it can provide up to 18 ounces of bud per square meter planted. Outdoors, you could benefit from a yield of up to 25 ounces per plant.

Through careful, regular pruning and cultivation, you can sculpt Blueberry into a bush shape. If you do it correctly, your plants may produce far more bud than they would normally. This high yield is often surprising for first-time growers. However, getting such a high return is dependent on several factors, aside from pruning. You also need to feed this strain properly.

Tip #5: Feeding Blueberry

Blueberry is a strain you should start in your greenhouse before moving outside. As such, you have a unique opportunity to prepare your soil in advance. Before you progress to outdoor growing, enrich the soil with the necessary nutrients.

Blueberry requires a decent amount of nitrogen compared to other strains. This fact becomes even more critical when you move a plant from inside a greenhouse to the outside. There is a change from a constant temperature to fluctuations outdoors. Therefore, your plants will use a lot of nutrients, especially as they strive to grow taller.

Make sure your plants are rooted firmly into the ground. After they begin to flower, try and litter the top of the soil with worm castings. Though that might sound strange to the uninitiated, try and take a look at the earth behind the trail of an earthworm. As it eats through dirt and compost, it leaves behind a nutrient-rich waste product which we call worm casting. This is naturally aerated because it passed through the worm’s digestive system.

You can ensure the plants are as nutrient-rich as possible by adding bat guano to the soil after the worm casting. This is, of course, another animal’s waste, but this time from bats! Bat guano is naturally high in phosphates and nitrogen due to the excess nutrients consumed by the winged creatures. It might smell strongly of animals and gunpowder, but your Blueberry plants will love it.

Don’t worry about any weird smells or anything else affecting the quality or taste of your buds. Blueberry is a vigorous plant and it’ll create the same pleasant taste regardless of what you feed it.

Tip #6: Growing Outdoors/Indoors

Blueberry is a remarkably versatile strain, able to handle surprisingly cold temperatures compared to what you might expect. It’s a perfect plant for planting in northern climates, such as the northeast of the USA or the frighteningly cold Midwest.

Blueberry is a strain best grown outside, thanks to its love of the natural sun and abundance of nutrients. Also, the quality and quantity of buds won’t be anywhere near as amazing if you grow it entirely indoors. Therefore, you should put it outside and enjoy some of the best buds you can imagine.

Most people opt for soil as the growing medium, whether you grow inside or outside. ‘Super soil’ purchased from stores contains a wide variety of nutrients for your Blueberry plants. Greensand is becoming a popular addition to marijuana plant soil. It is mineral glauconite, sourced by mining the ocean floor.

This greenish-blue product contains phosphorus, potassium, silica, iron, and a horde of trace minerals. It is best to add it to top-dressing and the weed’s root zone at the beginning of the growing season. This is because it takes a while to become bioavailable. It offers nutrients to help your plant’s immune systems and metabolic functions.

Tip #7: Blueberry Flowering Time

Blueberry cannabis has a pretty decent flowering time at 7-9 weeks on average. You can expect to see fresh Blueberry buds in less than two months, in some cases. This strain is remarkable for several reasons, but its quick flowering time amps up its excellent reputation. Not only do you get fantastic tasting, calm-inducing weed, but you get it relatively quickly as well.

Tip #8 Climate for Growing the Blueberry Strain

Blueberry is a strain that prefers a milder climate than others. Its perfect temperature range is between 65 and 80 Fahrenheit, though it’s surprisingly adept at withstanding colder temperatures.

This ability to resist the discomfort of colder nighttime temperatures makes Blueberry a favorite for those living in the American Midwest or the northeast.

The minimum recommendation is 65 degrees. However, it could briefly withstand temperatures as low as 45 degrees Fahrenheit without it affecting the bud yield significantly.

Just make sure it won’t face those kinds of temperatures for more than a couple nights in a row. Even the hardiest plant can’t survive freezing temperatures for long without dying or producing a low yield.

Final Thoughts on Growing Blueberry Marijuana

Blueberry Cannabis is a strain that is dependable, reliable and hardy. It offers a surprisingly high yield that will leave you with more buds than you know what to do with.

It’s a pretty easy strain to manage yourself. Perhaps the trickiest issue involves finding a greenhouse, to begin with. If you can find such a space, the next step is to move it outside to flourish under the natural sun.

With some surprisingly specific feeding requirements, Blueberry is a perfect strain for those looking to grow their own weed. Ideally, you will have the land necessary to produce it. The best yields are obtained by cultivating it both outdoors and in a general, bush shaped pattern rather than as a regular tall plant. You need lots of space to get the best out of your Blueberry strain.

Blueberry offers high yields, a wide temperature range, and the opportunity to play around with both worm and bat excrement. Once harvested, the Blueberry strain will have you relaxing and feeling euphoric in no time.

Our complete grower's guide to Blueberry marijuana strain including indoors vs. outdoors, nutrients, flowering times, and more.