
The fastest flowering cannabis seeds in Canada finish flowering in 7 to 8 weeks, and autoflower versions go seed to harvest in as little as 8 to 10 weeks total, comfortably ahead of fall frost.
Last updated: September 2026 · Picks drawn from real sales and review data in our catalogue.
When September rain and early frost set your deadline, flowering speed is the spec that matters most. The fastest flowering cannabis seeds in Canada below finish soonest in our catalogue, based on the timelines published on each strain page and confirmed by customer harvest reports.
Two routes get you there: fast version photoperiod strains that shave one to two weeks off flowering while keeping full-size yields, and quick autoflowers that finish on a fixed clock. Both are covered here; browse the full fast version seeds category or the autoflower range.
The 8 fastest flowering cannabis seeds in Canada for 2026

1. Northern Lights Feminized
Indica-dominant8 weeks to flowerUp to 600 g/plantFrom $65
The quickest finisher in the store for short-season regions. Northern Lights is one of the well-loved strains around the world because of its quality. It is good for growing outdoors because it can reach up to 5 feet in height. Rated 5.0 out of 5 by 6 verified customers.

2. Bruce Banner 2.0 Feminized
Sativa-dominant8 weeks to flowerFrom $65
Fast flowering with a classic, dependable structure. More About Bruce Banner 2.0 Feminized Sweet Kerosene For Calm and Relaxation Designed from the original Bruce Banner strain, the sequel offers an enhanced version, boasting better potency and overall experience. Leaning closer to Sativa genetics, this strain promotes invigoration and a cerebral high, including psychedelic effects.

3. Blue Cheese Autoflower
Indica-dominantTHC up to 18%8 weeks to flowerUp to 500 g/plantFrom $65
Finishes early without giving up yield. More About Blue Cheese Autoflowering Feminized A lot of attempts were made to cross Cheese and Blueberry marijuana strains. Both are high quality and have names of their own in the marijuana industry. Rated 4.7 out of 5 by 3 verified customers.

4. Auto Solomatic CBD (1:20)
Indica-dominantTHC up to 1%8 weeks to flowerUp to 475 g/plantFrom $35
A quick indica that beats the September rain. Due to its genetic lineage, the Auto Solomatic CBD (1:20) marijuana strain is famous for its rare and delightful aromas and flavor. This Indica-Dominant marijuana strain emits a fresh scent that smells like walking in a piney forest with damp soil. Rated 4.0 out of 5 by 4 verified customers.

5. CBD Elixir Regular
Balanced hybridTHC up to 20%8 weeks to flowerFrom $35
Fast, compact and easy to keep discreet. Opening a bag of this strain will fill the room with pungent earthiness and floral scents. But it gets even more enjoyable when one lights its buds as that earthy flavour blends with notes of woodiness and flowers.

6. 3 Kings Autoflower
Sativa-dominantTHC up to 16%8 weeks to flowerFrom $65
Photoperiod quality on an accelerated schedule. Its all-natural scent makes the 3 Kings autoflower very alluring cannabis. It is so inviting that once you light it up, that same natural scent of pungent earthiness greets your tongue with hints of pine. Rated 5.0 out of 5 by 1 verified customer.

7. CB Dream Feminized
Indica-dominantTHC up to 6%8 weeks to flowerFrom $35
A speedy hybrid with strong effects. You should expect hints of delicious citrus and pine flavors that CB Dream Feminized marijuana strain releases, which will leave you feeling focused and clear-headed. The plants are pretty enough to appeal to people who aren’t hunting for a solid stone. Rated 4.5 out of 5 by 2 verified customers.

8. Purple Dream Feminized Fast Version
Indica-dominantTHC up to 24%8 weeks to flowerUp to 700 g/plantFrom $65
Reliable in the north, where every week counts. Purple Dream Feminized Fast Version marijuana buds smell like fruity grapes and berries, refreshing. This refreshing scent is combined with the pleasant earthiness that most marijuana plants are known for it.
Quick comparison
| # | Strain | Type | THC | Flowering | From |
|---|---|---|---|---|---|
| 1 | Northern Lights Feminized | Indica-dominant | – | 8 wks | $65 |
| 2 | Bruce Banner 2.0 Feminized | Sativa-dominant | – | 8 wks | $65 |
| 3 | Blue Cheese Autoflower | Indica-dominant | 18% | 8 wks | $65 |
| 4 | Auto Solomatic CBD (1:20) | Indica-dominant | 1% | 8 wks | $35 |
| 5 | CBD Elixir Regular | Balanced hybrid | 20% | 8 wks | $35 |
| 6 | 3 Kings Autoflower | Sativa-dominant | 16% | 8 wks | $65 |
| 7 | CB Dream Feminized | Indica-dominant | 6% | 8 wks | $35 |
| 8 | Purple Dream Feminized Fast Version | Indica-dominant | 24% | 8 wks | $65 |
How to choose fast flowering seeds
Match the finish date to your region. Coastal BC can afford 9 week strains; the Prairies and the Atlantic provinces want 8 weeks or less, or an autoflower. Indica-dominant genetics finish fastest, and fast version crosses keep photoperiod yields while cutting time. If you are racing frost outdoors, an autoflower planted in early June is the safest bet of all.
Beating the frost in Canada
- Start seeds indoors in April so plants go outside with a head start.
- Choose spots with morning sun to dry dew fast and prevent bud rot.
- Cover plants on cold nights in September; a frost blanket buys two weeks.
- Harvest a few days early rather than lose a crop to a hard freeze.
- Fast autoflowers can go in as late as early July and still finish.
How we chose
Every pick comes from our own catalogue data: real sales volumes, verified customer reviews and the strain specs published on each product page. No sponsored placements. Prices are the smallest pack at time of writing, every order carries our 80 percent germination guarantee, ships discreetly from Vancouver in 3 to 7 days, and every 10 and 25 seed pack is buy one get one free.
Frequently asked questions
What counts as a fast flowering strain?
Anything finishing flowering in 8 weeks or less. Indica-dominant genetics and fast version crosses lead this range.
Fast version or autoflower for speed?
Autoflowers win on total calendar time. Fast versions win on yield: photoperiod-sized harvests arriving one to two weeks early.
When do fast strains come down outdoors in Canada?
Typically early to mid September, comfortably before hard frost in most provinces.
Do fast strains yield less?
Fast version strains keep photoperiod yields. Autoflowers yield less per plant but allow two crops a season.
Can I speed up a normal strain?
Slightly, by switching to 12/12 light early indoors, but genetics set the ceiling; a fast strain is the reliable answer.
Which fast strain is best for the Prairies?
A quick autoflower planted in June; it finishes in August regardless of light hours.