Blueberry Kush x AK-47 Strain Review: THC, Effects, Flowering Time & Yield

Blueberry Kush x AK-47 is an original QCS strain: a feminized hybrid cross of Blueberry Kush and AK-47 with up to 23% THC, 8 to 9 weeks of flowering and a late September to early October outdoor harvest. This Blueberry Kush x AK-47 strain review combines our own specs, the real customer reviews and what growers commonly report, so you can decide whether it deserves a place in your garden.

Blueberry Kush x AK-47 strain at a glance

What is the Blueberry Kush x AK-47 strain?

Blueberry Kush x AK-47 is an original QCS strain: Quebec Cannabis Seeds is its original breeder, and these are our own genetics, bred in Quebec since 2015 by a grower with more than 35 years of experience.

The Blueberry Kush x AK-47 strain is a QCS original cross of two well-known names: a berry-scented Kush on one side and the famously easygoing AK-47 on the other. The result, according to our product page, is a squat, bushy plant with dense, resin-heavy buds, a moderate berry-and-spice aroma and an effect that begins stimulating and ends relaxing.

Both parents have long histories. AK-47 has been a bestseller for decades, usually described as a hybrid with a mellow, steady effect that is easier to grow than its fierce name suggests. Blueberry-Kush lines inherit the fruity, jammy side of the classic Blueberry together with the earthy depth of a Kush. Breeders often combine the two for flavour and balance, and several breeders sell Blueberry-AK style crosses.

Remember that several seed companies sell their own Blueberry AK or similar crosses, with different parents and numbers. Other seed companies' versions may differ; the numbers on this page are for the QCS version only.

Is Blueberry Kush x AK-47 indica or sativa?

QCS lists this cross simply as a hybrid and does not publish an indica/sativa percentage. The product page describes an indica-style structure (squat and bushy) with a balanced effect. That is a fair summary of how a Kush parent and an AK-47 parent usually combine: a plant that stays compact and dense, with a head-and-body effect rather than a purely sedating one.

Buyers who want a pure indica profile should read our guide to what indica does to you, and those after something more energetic can browse our sativa-dominant range. This cross sits in the middle, which makes it a flexible choice.

Smell and flavour

QCS lists the taste as berry, earthy, spice and floral. The aroma is moderate rather than overpowering, with fruity, earthy and spicy notes and a sweet berry impression on the inhale. Reviewers back this up: one called the smell fruity but not overpowering, another reported a strong sweet blueberry and gassy smell, and a third found the smell slightly weak. Smell varies from plant to plant, as it does with any seed-grown strain.

This is a good fit for growers who want some flavour without the louder, skunkier profiles. As always, a slow dry and a proper cure bring out far more of the berry and floral notes.

Blueberry Kush x AK-47 effects

QCS describes the effect as euphoric and mentally stimulating first (the AK-47 side), then relaxing (the Blueberry Kush side), strong but balanced. One reviewer called it a great all-day smoke, and another who grew it beside a Gorilla Glue plant preferred it and called it underrated with a great high.

How it feels still depends on the person and the dose, and nothing here is medical advice. At up to 23% THC, a newer user should start low and wait before taking more.

How strong is Blueberry Kush x AK-47? THC content

QCS lists the strain at up to 23% THC, with no CBD listed on the page. That is in the strong range, enough for most experienced consumers without being as extreme as the very top of our catalogue. If you want to go higher, browse our THC over 25% seeds.

"Up to" is a ceiling, not a promise. Actual potency depends on the phenotype, the growing conditions and the dry and cure.

Growing Blueberry Kush x AK-47: flowering time and yield

Our product page calls this strain relatively easy and suitable for both beginners and experienced growers. Indoors it flowers in 8 to 9 weeks and yields 450 to 600 g/m². Outdoors it is usually ready in late September to early October, with 450 to 700 g per plant. Those are ranges, not guarantees.

The plant is squat and bushy, so a short canopy with dense, resin-heavy flowers is what you should plan for. Topping and low-stress training spread the plant and let light into the lower branches. Keep airflow up around the dense buds and watch humidity late in flower. Our page notes that "mold resistant" means mold tolerant, and that no strain is fully resistant.

One reviewer found the plant unhappy at 68 to 70 degrees Fahrenheit (about 20 to 21 degrees Celsius) and suggested keeping the room a few degrees warmer. The same grower used a 48-hour dark period and would not repeat it, and noticed rusty orange stigmas that did not affect flavour or potency. A different grower ran a seven-month veg indoors under a trellis net and harvested 3.8 ounces from one plant. These are individual experiences, not averages.

What customers report

Our page lists 19 reviews with an average of 4.6 out of 5, and ten are shown. Many reviewers received this strain as a free seed with an order. Here is what they say.

• A favourite after years of growing: a customer who has grown several QCS strains for years called it his best, both indoors and outdoors.
• Better than a big name: a grower who ran it next to Gorilla Glue preferred it, called it underrated and bought more.
• Fast and dense: a grower in a new room saw plants grow fast and tall with fat, resin-packed buds and a fruity but not overpowering smell.
• Colour: a grower reported purple, dark and light green nuggets with orange hairs, plus a strong sweet blueberry and gassy smell.
• First grow: a first-time grower was very happy and would buy again, noting a strong smell and strong effects.
• The honest comments: one reviewer grew a short plant with about ten large buds and found the smell slightly weak. Another received it as a gift and said it was not quite as good as he hoped, though the taste and buzz were very good and he plans to try again. Temperature seems to matter, as noted above.

Is Blueberry Kush x AK-47 right for you?

Choose Blueberry Kush x AK-47 if you want a balanced, reasonably forgiving hybrid with berry flavour, a squat shape and good yields. It suits growers with limited height, outdoor growers in Quebec, Ontario and the Maritimes who need a September-to-early-October finish, and anyone who wants an all-day-friendly effect. It is probably not the right pick if you need a very high-THC strain or a very strong smell.

Looking for more? Browse our feminized seeds or the all seeds collection, or read our review of Black Cherry OG, another indica-leaning QCS original.

Blueberry Kush x AK-47: frequently asked questions

A note on the numbers in this article: harvest dates, flowering times and yields are ranges, not promises. They vary depending on growing conditions: the grower, the method and the season's weather. No strain is 100% mold resistant. How we set these numbers →

View Blueberry Kush x AK-47 seeds →