Français Painkiller XL is an original QCS strain: a feminized, CBD-rich autoflower that is 75% sativa with 9% THC, 8 to 9 weeks of flowering and 500 to 550 g/m² indoors. On our site the product is listed as CBD Painkiller XL Autoflower. This review covers the specs, the sweet citrus flavour, the balanced effects and how to grow it.
Painkiller XL strain at a glance
| Genetics | Original QCS genetics (parent lines not published on the product page) |
| Type | Autoflower, feminized, 75% sativa / 25% indica |
| THC | 9% |
| CBD | High (no exact figure listed) |
| Flowering time | 8 to 9 weeks indoors |
| Outdoor harvest | Late August |
| Yield | 500 to 550 g/m² indoors, up to 500 to 550 g per plant outdoors |
| Height | 60 to 100 cm |
| Flavour | Sweet candy, citrus, earthy, floral |
| Pack | 5 feminized autoflowering seeds |
| Breeder | Quebec Cannabis Seeds (original QCS genetics) |
What is the Painkiller XL strain?
Painkiller XL is an original QCS strain: Quebec Cannabis Seeds is its original breeder, and these are our own genetics bred in Quebec.
Painkiller XL is the name of a CBD-rich autoflowering strain bred by Quebec Cannabis Seeds from original QCS genetics. On our website it appears as CBD Painkiller XL Autoflower Cannabis Seeds Feminized, and that is the only Painkiller XL version we sell. The product page does not publish the parent lines, so we will not guess at them.
An important note on the name: "Painkiller" is only a product name. QCS makes no medical claims, and no plant can guarantee a specific effect. What the page does say is that this is a feminized autoflower with 75% sativa and 25% indica genetics, high in CBD (no exact figure is given) and low in THC at 9%.
Other seed companies sell strains with similar names, and their versions may differ. Other seed companies sell strains with the same or a similar name, and their versions may differ, so the numbers on this page are for the QCS version only.
Is Painkiller XL indica or sativa?
QCS lists the balance at 75% sativa and 25% indica, so it is clearly sativa dominant. A sativa lean usually means a taller, more open plant, but this one stays at a manageable 60 to 100 cm and carries a compact, balcony-friendly badge. If you are curious about the indica share, see what indica does to you.
Smell and flavour: sweet candy, citrus and earth
QCS lists the taste as sweet candy, citrus, earthy and floral, with another section on the page giving candy, citrus, earthy and fruity. The aroma is noticeable, so the page recommends odour control.
If you are used to loud, gassy high-THC strains, expect something softer and fruitier here.
Painkiller XL effects
QCS describes the effect as balanced and relaxing, lighter than the high-THC strains in the catalog. With only 9% THC and a high CBD content, it is aimed at people who want a gentler, clearer experience rather than a heavy one.
Effects vary from person to person and with growing and curing conditions. This is not medical advice and QCS makes no therapeutic claims. If you have health questions, speak to a qualified professional. If you are new to cannabis, start low and go slow.
How strong is Painkiller XL? THC and CBD content
QCS lists 9% THC, which is low compared with most strains in our catalog. CBD is described as high, but the page does not give an exact figure, so we do not show one. If you are looking for much stronger options, see our THC over 25% collection.
Remember that CBD-rich plants may be regulated differently from high-THC ones in some places, so check local rules before planting.
Growing Painkiller XL: flowering time and yield
Painkiller XL is a feminized autoflower, so no 12/12 light change is needed. It flowers in 8 to 9 weeks and stays at 60 to 100 cm. Outdoors, QCS lists a harvest in late August, which makes it a very early finisher for a Quebec garden.
Yield is listed at 500 to 550 g/m² indoors and up to 500 to 550 g per plant outdoors. The About section calls the outdoor figure a best case in a large container with full sun, so treat both as ranges and not guarantees.
Planting tips from the product page: sow straight into the final pot because autoflowers dislike transplanting, keep the medium damp but not wet at about 22 to 25 C until emergence, and harvest by trichome development rather than by the calendar. Our autoflower guide covers the full method.
What customers report
The product page currently shows no customer reviews. The About text mentions one customer who received free Painkiller seeds with an order and said all of them germinated, but that is a single data point and not a promise, and we are not treating it as a review.
If you grow it, tell us how it went, complaints included. Every pack is covered by our 80% germination guarantee with replacements.
Is Painkiller XL right for you?
Choose Painkiller XL if you want a CBD-rich, low-THC autoflower with a sweet candy and citrus profile, a balanced and gentle effect and a short, easy season. If you want much more THC, browse high-THC seeds or all autoflower seeds.
Why grow Painkiller XL from Quebec Cannabis Seeds?
- Bred in Quebec by the original breeder. Quebec Cannabis Seeds (QCS) is the original breeder of Painkiller XL, one of our own QCS Originals, bred here since 2015 by a grower with 35+ years of experience.
- Guaranteed. 80% germination guarantee with replacements, and delivery guaranteed. If a pack under-performs, email us and we make it right.
- Free seeds with every order, and free shipping on orders over $200.
- Fast, discreet shipping. Ships from Quebec within 24 hours Monday to Friday in plain, unbranded packaging, to Canada (Canada Post) and to the USA (1–2 business days by Express).
- Real support. Every email answered within 24 hours.
Buy Painkiller XL seeds → Canada delivery Shipping to the USA
Painkiller XL: frequently asked questions
What is the Painkiller XL strain?
Painkiller XL is an original QCS CBD-rich autoflower, listed on our site as CBD Painkiller XL Autoflower. It is 75% sativa and 25% indica with 9% THC. The name is a product name and QCS makes no medical claims.
Is Painkiller XL indica or sativa?
It is sativa dominant: 75% sativa and 25% indica according to the QCS product page.
How strong is Painkiller XL?
QCS lists 9% THC with a high CBD content (no exact CBD figure is given). It is lighter than the high-THC strains in the catalog.
How long does Painkiller XL take to flower?
About 8 to 9 weeks of flowering indoors. Outdoors it is ready in late August. These are ranges, not promises.
How much does Painkiller XL yield?
500 to 550 g/m² indoors and up to 500 to 550 g per plant outdoors under ideal conditions, as ranges rather than guarantees.
Is Painkiller XL easy to grow?
It is an autoflower, so no light-cycle change is needed, and it stays at 60 to 100 cm. QCS does not give a numeric difficulty rating.
What does Painkiller XL taste and smell like?
QCS lists sweet candy, citrus, earthy and floral, with a noticeable aroma.
Where can I buy Painkiller XL seeds in Canada and the USA?
Quebec Cannabis Seeds sells feminized CBD Painkiller XL autoflower seeds in packs of 5, 10 and 20. We ship across Canada in 3 to 7 days (2 to 3 days Express) and to the USA in 1 to 2 business days by Express, with free shipping over $200 and an 80% germination guarantee.
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 →
About this article
Published by the Quebec Cannabis Seeds team. QCS was founded in 2015 by Trent LaPierre, a Quebec breeder with more than 35 years of hands-on growing experience. Genetics we bred ourselves are described from our own breeding work; when a strain comes from another breeder, we say so and credit them. How we work. Last updated: November 6, 2026.
Sources and further reading: Cannabis Act (Justice Laws, Government of Canada) · Cannabis Regulations (SOR/2018-144). Rules on cannabis seeds differ by province and state; check your local regulations before ordering.
