Growing Cannabis In Canada

Can You Clone an Autoflower? The Honest Answer for Growers

Meta Title: Can You Clone an Autoflower? Why It Rarely Works (And What to Do Instead) Meta Description: Can you clone an autoflower plant? Technically yes, but practically it's rarely worth it. Here's why autoflower cloning fails and what to do instead.

If you've grown photoperiod cannabis before, you already know the magic of cloning: take a cutting, root it, veg it out, and you've got a genetic replica of your favorite plant — for free. It's one of the most satisfying skills a grower can learn.

So it's natural to wonder: can you clone an autoflower the same way?

The short answer is technically yes, you can take a cutting from an autoflowering plant. The real answer is that doing so is almost always a waste of time, and there's a fundamental biological reason why. This guide breaks down exactly what happens when you try, why experienced growers rarely bother, and what you should do instead if you want to keep a strain going.

How Autoflowers Differ From Photoperiod Strains

To understand why cloning autoflowers is problematic, you first need to understand what makes them different from traditional photoperiod cannabis. Montreal Cannabis Seeds has a detailed comparison of photoperiod, autoflower, and fast version strains that covers this in depth, but here's the core distinction.

Photoperiod strains flower based on light cycle changes. As long as you keep them on 18+ hours of light per day, they stay in vegetative growth indefinitely — which means you can keep a mother plant alive for years, taking cuttings whenever you want. Each cutting is essentially a fresh start on the veg clock.

Autoflowers operate on a completely different schedule. They flower based on age, not light. If you're new to the concept, MCS's explainer on what an autoflower marijuana strain actually is is worth a read. Most autos begin flowering automatically around 3–4 weeks after sprouting, regardless of the light cycle you give them. There's no "keep them in veg" option — once that internal clock trips, the plant transitions to flower whether you're ready or not.

This single difference is the entire reason cloning autoflowers doesn't work the way growers expect.

So, Can You Clone an Autoflower?

Yes — technically. You can take a cutting from an autoflowering plant, dip it in rooting hormone, place it in a clone dome, and under the right conditions it will root and grow.

But here's the catch that ruins the whole exercise:

An autoflower clone is the same biological age as the mother plant it came from.

When you take a cutting from a 4-week-old autoflower that has just started flowering, the clone doesn't reset to day one. It carries the same genetic "age" as the donor plant. So while the cutting is busy trying to root — a process that typically takes 7–14 days — it's also continuing to flower.

By the time the clone develops roots and can actually support itself, the donor plant is already weeks into flower. The clone has been flowering the entire time, but without a root system to feed it. The result is a stunted, tiny plant that yields next to nothing — if it survives at all.

Montreal Cannabis Seeds' ultimate guide to feminized, regular, and autoflowering seeds addresses this directly in their FAQ: yes, autoflowering seeds can technically produce clones, but those clones will autoflower based on the mother plant's age, which sharply limits their usefulness.

Why Photoperiod Cloning Works (And Autoflower Cloning Doesn't)

That table tells the whole story. Photoperiod clones work because you control the timeline — keep the light cycle in veg, and the clone has all the time it needs to root and grow before you flip it to flower. With autos, you have no such control. The clock is already running, and it doesn't pause for the cloning process.

The Exceptions: When Autoflower Cloning Might Be Worth It

There are a handful of edge cases where experienced growers do clone autos, usually for reasons other than yield:

• Preserving rare genetics — if you have a phenotype you want to keep for breeding, a clone can keep the genetics alive long enough to collect pollen or take further cuttings
• Research and experimentation — some growers clone autos purely to study the process, not for production
• Tissue culture work — commercial breeders use tissue culture rather than traditional cuttings to preserve auto genetics long-term

For the average home grower looking to produce bud, none of these apply. If you want a harvest, plant more seeds.

What to Do Instead of Cloning an Autoflower

If cloning isn't the answer, what is? Here's how to get the same benefits — repeated harvests, predictable results, strain preservation — without fighting biology.

1. Just Plant More Seeds

This is the simplest and most honest answer. Autoflower seeds are affordable, fast to grow, and reliable. Instead of spending weeks trying to clone a plant that will yield almost nothing, pop a fresh seed. You'll have a healthy, full-size plant in roughly the same timeframe — and far less headache. The full autoflower seed collection at Montreal Cannabis Seeds has plenty of beginner-friendly options that germinate reliably and finish on schedule.

2. Stagger Your Plantings

Want a continuous harvest without cloning? Stagger your seed plantings by 2–4 weeks. By the time your first plant is finishing flower, your second is mid-way through, and your third is just starting. This gives you a rolling harvest cycle without ever needing a mother plant. MCS's guide on 10 proven tips to increase yield covers staggered planting and other techniques for getting more out of each cycle.

3. Switch to Photoperiod Strains If You Want to Clone

If cloning is genuinely important to you — whether for cost savings, strain preservation, or the satisfaction of mastering the skill — switch to photoperiod genetics. You'll need to manage light cycles, but you gain full control over the veg-to-flower transition, which makes cloning practical and rewarding. The feminized seeds catalog at Montreal Cannabis Seeds is the place to browse for photoperiod strains suited to cloning.

4. Try Feminized Seeds for Predictable Results

If male plants are your concern (the reason many growers avoid regular seeds), feminized photoperiod seeds give you the best of both worlds: guaranteed female plants AND the ability to clone them indefinitely. It's the setup most experienced growers eventually settle on. MCS's overview of why you should grow your own cannabis walks through the trade-offs between auto and photoperiod setups in more detail.

Common Myths About Cloning Autoflowers

A few misconceptions circulate in grower forums worth addressing:

Myth: "If you take the cutting early enough, it'll reset." No. Autoflower age is tied to the plant's genetics, not its size. A cutting taken from a 2-week-old plant still carries the same flowering countdown.

Myth: "You can revert an auto clone to veg with 24 hours of light." Not reliably. Some growers report limited success reverting autos, but results are inconsistent and yields suffer. The plant's internal clock isn't easily overridden by light alone.

Myth: "Autoflower clones yield just as much as seed plants." They don't. Without adequate rooting time before flowering kicks in, the clone simply can't develop the structure or buds to support a real harvest.

If you're still weighing up which seed type suits your goals, MCS's guide to buying cannabis seeds in Canada includes a helpful section on selecting the right strain by experience level and growing environment.

The Bottom Line

Can you clone an autoflower? Technically, yes. Should you? For almost every home grower, the answer is no.

Autoflowers are bred for speed, simplicity, and a set-it-and-forget-it growth cycle. They're the perfect choice for beginners and growers who want fast results without managing light cycles — but that same design makes them poor candidates for cloning. The biological clock that makes them so convenient also makes traditional cloning pointless.

If you want to clone, grow photoperiod strains. If you want the speed and simplicity of autos, plant fresh seeds each cycle. Trying to force autoflowers into a cloning workflow fights the very genetics that make them valuable.

Choose the right tool for the job, and your grows will be simpler, more productive, and far less frustrating.

Looking for reliable autoflower seeds that germinate consistently and finish fast? Browse the autoflower collection at Montreal Cannabis Seeds and skip the cloning headache entirely.