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Double Jack Autoflower Cannabis Seeds Feminized
$50.00
5 Seeds Per Pack
Strain at a Glance
A balanced 50/50 autoflower with 22% THC and an earthy, woody, skunky flavour. Original QCS genetics, bred by Quebec Cannabis Seeds in Quebec, Canada.
Genetic Balance
balance
Key Information
- THC22%
- Genetics(Jack Herer × Northern Lights #5) × Ruderalis
- TasteEarthy • Woody • Skunk • Pine
- Indoor flowering time9–10 weeks
Specifications
| Strain | Double Jack |
|---|---|
| Seed type | Autoflower, feminized |
| Genetics | (Jack Herer × Northern Lights #5) × Ruderalis |
| Genetic balance | Autoflower, 50% indica, 50% sativa |
| THC | 22% |
| Taste | Earthy, Woody, Skunk, Pine |
| Indoor flowering time | 9–10 weeks |
| Yield | 350–400 g/m² indoors, up to 200 g per plant outdoors |
| Pack size | 5 Seeds Per Pack |
These figures are ranges, not promises. Flowering time, harvest date and yield vary depending on growing conditions: the grower, the method and the season's weather. "Mold resistant" means mold tolerant: less prone to mold and slower to be affected. No strain is 100% mold resistant. How we set these numbers →
Taste & Aroma Profile
Earthy and woody with skunky undertones — the Northern Lights sweetness under Jack Herer’s pine and spice — and “already very good taste after three days of cure”, which bodes well for a proper cure.
About Double Jack
Genetics & strain profile
Double Jack Autoflower is bred by Quebec Cannabis Seeds from Jack Herer and Northern Lights #5, combined with Ruderalis to make it an autoflower — two of the most reliable strains of the 1990s in one plant that needs no light schedule. It is an equal 50% indica, 50% sativa blend with 22% THC, and it carries three of our badges: bred by QCS, beginner-friendly and compact, balcony-friendly. It has one review so far, a four-star one from a Quebec grower that says what matters: “very big producer, enormous heads, resistant to mould with enough airflow, already very good taste after three days of cure”. If you grow it, a review helps the next person. Our seeds are guaranteed.
How Double Jack Autoflower grows
Because it is an autoflower, it flowers on its own schedule without a change in light hours. The plant stays relatively compact and easy to manage — a 15 to 20-litre pot on a balcony is enough — and its robust genetics cope well with different environments: Northern Lights brought the hardiness and the mould resistance the reviewer noticed, Jack Herer the vigour and the big heads. It flowers in 9 to 10 weeks, with 350 to 400 g/m² indoors and up to 200 g per plant outdoors; the reviewer calls it a “very big producer”, so give it a full-size pot and light. Plant it in its final container, keep the light on 18 to 20 hours indoors, feed at half strength and keep training to the low-stress kind. The one condition the reviewer attached to its mould resistance was “enough airflow”: the heads are big and dense, so space plants and run a fan in the last three weeks.
Taste, aroma and effect
Earthy and woody with skunky undertones — the Northern Lights sweetness under Jack Herer’s pine and spice — and “already very good taste after three days of cure”, which bodes well for a proper cure. The effect ranges from euphoric and uplifting to deeply relaxing, as a true 50/50 should: a clear, happy Jack opening that slides into the Northern Lights calm, and at 22% THC strong enough to start small. For the parents, see Jack Herer and Northern Lights; for a bigger photoperiod Jack cross, Big Jack; for another QCS autoflower, Double OG Kush Autoflower.
Frequently Asked Questions
How long does Double Jack Autoflower take to flower?
9 to 10 weeks. No change in light hours is needed.
How much does Double Jack Autoflower yield?
350 to 400 g/m² indoors and up to 200 g per plant outdoors. The reviewer calls it a very big producer.
How strong is Double Jack Autoflower?
22% THC — a clear, euphoric opening that settles into deep relaxation.
Is Double Jack Autoflower easy to grow?
Yes. It is a compact, robust, beginner-friendly autoflower.
Is Double Jack Autoflower mould resistant?
The reviewer found it resistant to mould with enough airflow. The heads are dense, so run a fan in the last weeks.
How tall does Double Jack Autoflower get?
Relatively compact; a 15 to 20-litre pot on a balcony is enough.
What does Double Jack Autoflower taste like?
Earthy and woody with skunky undertones, pine and spice.
What are the parents of Double Jack Autoflower?
Jack Herer and Northern Lights #5, crossed with Ruderalis. Bred by Quebec Cannabis Seeds.
Where can I buy Double Jack seeds in Canada?
Right here at Quebec Cannabis Seeds. Orders ship from Quebec within 24 hours on business days, in plain packaging, across Canada and to the USA, with a germination guarantee.
Order with confidence
- Germination guarantee. If fewer than 80% of your seeds germinate, we send replacement seeds.
- Delivery guarantee. We guarantee delivery of your order.
- Discreet packaging. Plain, unbranded packaging with no logos and no mention of the contents. No signature is required.
- Shipped from Quebec within 24 hours. Orders usually ship the same day or within 24 hours of payment, Monday to Friday. Canada: 3 to 7 days, or 2 to 3 days by Express. USA: 1 to 2 business days by Express. Free shipping on orders over $200.
- Your privacy. We do not sell or share your information with third parties.
- Free seeds with every order, and real people to help: 514-805-2741, Monday to Friday, 11 AM to 6 PM EST.
Details: Shipping · Return policy · FAQs · Privacy policy
- Availability: In Stock
- Model: Q.C.S.
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Manufacturer:
19/04/2025
Très gros producteur énormes têtes résistant à moisissure avec suffisamment d'aération très bon au goût déjà avec trois jour de cure