The Autoflower Calendar: Seed to Harvest in eleven Weeks

Along the rivers in southern Siberia there is a scrawny little cannabis plant that nobody bothered to cultivate for most of history. It flowers whether the days are long or short, because in its home climate the summer is too brief to wait for a signal from the sun. That plant is Cannabis ruderalis, and nearly every autoflower seed sold today carries its stubborn internal clock to it. Breeders folded ruderalis into potent indica and sativa lines, and after a few decades of selection the result is a seed that completes its whole life on a preset schedule. Shops such as https://turboautoflowerseeds.com deal in exactly that kind of seed, and the fastest line in its range is harvestable in around 56 days from sprout. This article follows a typical autoflower grow week by week, from the day you choose the pack to the moment you cut the plant, including the decisions that count at each stage and the mistakes that cannot be reversed later.

Before Day One: Choosing the Seed

An autoflower cannot be saved by a longer vegetative stage, so the margin for error is narrower than with a photoperiod plant and the choice of seed bears more weight. A handful of things on the pack are worth a closer look.

• Generation. Older autos were small and harsh; modern releases are many generations removed and far closer to their photoperiod parents. A new release from a known breeder is a safer bet than a discount line of uncertain age.
• Light tolerance. Some lines are selected for near-continuous light and repay it with bigger yields; others perform better at eighteen. The breeder’s note is worth following.
• Height range. Autos range from forty centimetres to well over a metre. Fit the strain to the space available, because there is no chance to keep the plant small by delaying flower.

Each strain on Turbo Autoflower Seeds ships with a strain guide that states the tested height, light preference and cycle length, which removes most of the guesswork at this stage.

Week One: The Taproot Sets the Pace

The seed cracks, a white taproot emerges, and within a few days two round cotyledon leaves push through the surface. Little about this week looks dramatic, but the root that forms now is the foundation for everything after it.

The single decision that matters most in week one is where the seed is planted. Autoflowers resent transplanting; a damaged root system at this stage takes days of growth that the plant cannot get back. Experienced growers germinate the seed straight in its final pot, or at least in a container it will stay in. The medium should be airy and only slightly damp; a seedling overwatered in a large wet pot is the commonest autoflower casualty of all.

The Short Vegetative Sprint

By the start of week two the plant is growing true leaves and gaining size quickly. This is the nearest thing an autoflower has to a vegetative stage, and it is over almost before it starts.

Anything that shapes the plant has to be done now, and it has to be light. Tie-down training, where branches are pulled sideways and held, works on most autos and opens the canopy without slowing growth. Topping is riskier: fast strains shrug it off, slower ones sacrifice a week they do not have. Stripping leaves at this stage is almost always a mistake. If in doubt, let the plant alone and accept its natural shape; a somewhat untidy autoflower beats a stressed one.

When Preflowers Appear

At some point between the third and start of the fifth week, small white pistils show at the nodes and the plant begins to stretch. Nothing on the timer was changed; the clock did it. Here is the moment that defines the autoflower: the grower is a bystander to the most important transition in the plant’s life.

Two things change in practice. Light can remain where it is, commonly eighteen to twenty hours a day for the whole grow; there is no reason to cut it to twelve, and doing so simply reduces the harvest. And feeding shifts gradually away from nitrogen towards phosphorus and potassium. Gradually is the key word: an autoflower hit a sudden flowering feed in week four often develops burnt tips and stalls. Light doses, increased week by week, suit a plant this small.

The Middle of the Run

The stretch lasts for about two weeks and can double the plant’s height, and that is why the height range on the pack mattered in week zero. When it stops, flowers begin to fill out and the plant settles into its single most productive phase.

• Light distance. As the canopy rises, lift the lamp to hold the correct distance. Heat stress at the top of a short plant loses the best flowers.
• Support. Big colas on a thin stem bend by week seven. A ring put in now, before the weight arrives, saves snapped branches.
• Humidity. Tight autoflower buds on a plant this short sit close to damp soil; dropping relative humidity below fifty percent prevents mould before it starts.
• Water volume. The plant uses far more than it did in week two. Pots that dry out between waterings in a day want a bigger volume per watering, not more frequent light ones.

Knowing When to Stop

The advertised cycle length is a median, not a contract. Single plants from the same pack ripen a week apart, and conditions push the number further. The plant, not the pack, tells you when it is ready.

The usual indicators: pistils turn from white to rust and retreat inward; the lowest leaves yellow and fall as the plant pulls its resources into the flowers; and under a loupe the resin glands shift from clear to cloudy, with a scattering of amber. Cutting at mostly cloudy with some amber heads is the conventional target; more amber gives a heavier, more sedative result. Flushing for the final week is widely practised and harmless, regardless of what the debate over its necessity says.

The Mistakes That Cannot Be Undone

A photoperiod grower who stresses a plant can add a few weeks of veg and let it recover. An autoflower grower has no such option; the clock keeps running. These are the mistakes that surface in harvest weight every time.

• Overwatering a seedling in a large pot. The root sits in saturated medium, stalls, and the plant flowers at a fraction of its potential.
• Heavy feeding before week four. Autos are small feeders in the first weeks and burn easily; the damage lands exactly when the plant needs to be stretching.
• Transplanting after the first week. Each day of root recovery is a day of flower lost.
• Topping a slow or unknown strain. On the wrong line it takes a week the plant never gets back.
• Cutting the light to twelve hours “because it is flowering”. The plant never needed the signal, and the lost hours translate directly into lost yield.

The Point of a Schedule

Everything above sounds like a list of limitations, and in one sense it is. Yet the fixed clock is the feature that made autoflowers popular, rather than a drawback to tolerate.

A run that ends in ten weeks regardless can be planned to the week: start in April, cut in June, start again. A balcony grower has a plant that remains under the railing. A grower in a northern climate squeezes two season crops into a window that permits only one photoperiod plant. A first-time grower learns the whole cycle in under three months instead of six, and makes the second attempt sooner. None of those benefits requires a heavier harvest to be worth it.

Practicalities

Turbo Autoflower Seeds sends every order in unmarked packaging, with the original seed packs intact inside and no hint of the contents on the outer parcel. Orders to the United States are not taken, as seed import is not permitted there. Seed laws vary sharply by country, and in many places buying seeds is permitted while germinating them is not; knowing the rules in your own jurisdiction remains the buyer’s responsibility, and nothing here is legal advice.

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This post was written by Arturo