how to induce flowering outdoors

Inducing early flowering outdoors

In this guide we will speak about advanced flowering our medicinal cannabis on outdoor … or also called induced flowering outdoor..
For this system it is essential grown with pots not more than 11 liters Well, we’ll have to move, our marijuana plants every day to a dark room.

This is a great advantage to grow cannabis in outdoor, in this way, you can have two crops per year .. Or if your climate allows you, more … It can also help in humid climates, where bad weather can ruin the end of flowering… To prevent unwanted light from street lamps..

This technique is very easy, move the plants every day at the same times to dark room, .. You must be 12 hours in complete darkness .. This way you can start flowering when you want..

The cabinet or room, where we will keep the plants every day, should be a well-ventilated room, because we will have enclosed plants 12 hours straight … With poor ventilation in humid climates, may occur which we want to avoid ..
We also have to consider not open, ever, the lights during the dark period .. this could cause great stress to the plant ..

Emphasize once again the need to meet strict schedules to not stress to plants

Outdoor Induced Flowering plant

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14 thoughts on “ Inducing early flowering outdoors ”

I move mine into our standard backyard shed to induce flowering. Inside the shed they are covered up with black tarp. No light at all. Then daily I move them in and out on a 12/12 schedule. The shed has good ventelization. Just 3 plants about 16-18 inches in height. This works well for me, while the neighborhood kids are in school. Should harvest just about the week they get out of school. I’ve done this 2x’s before with pretty good results. The pots are 2 gallon size, any larger get to heavy to move easily. It’s just a personal consumption grow. Final 3 weeks I will take them indoors and finish with about 400 watts of cfl’s. Late May, I’ll start one or two more plants for an October harvest. The last grow yielded about 5.5 oz’s. I use a modified LST approach, not to high, in growth but spread out over 24 inches, or so.

i did a early flower last year but instead of moving them which can be a lot of work i would just cover them with a well ventilated dark cover

  1. Trich-world Post author Tuesday July 15th, 2014 at 10:10 PM

Good method @PuffRyder , if your environment allows it’s best. 😉

What do you use for this”dark cover”. I have two plants outside, 90 days, too tall, very bushy, but, the height is above the balcony. Tried fimming, topping, still reaching. I see a few preflowers and want to hasten the flowering, a tent is too obvious. Thank you

  1. Trich-world Post author Saturday August 16th, 2014 at 07:57 PM

Hi Michelle.. few options, I imagine that you have no way to get the plants to a dark room really? is difficult to isolate the light without an enclosed compartment but also ventilated without attracting too much attention from outside eyes.

Black tarp? storage box for gardens?

Have you tried to do LST? Second pic is with LST for the same reason, height is above the balcony.. The LST does not damage the branches, you can force them every 3 days and always keep the same desired height.

In my area we are hit with freezing temps at the end of our grow season. This is a good technique to allow the plant ultimate flowering.

  1. Trich-world Post author Wednesday April 30th, 2014 at 06:09 PM

Incidentally @meanormatt I’m sure your plants finish their cycle very colorful 😉

Por problemas de contaminación lumínica tengo que forzar la floración. Es un poco engorroso cada dia y cada noche sacar y meter las plantas, pero avanzamos la cosecha un par de meses y es agradable cosechar en pleno mes de julio.

  1. Trich-world Post author Wednesday April 30th, 2014 at 06:10 PM

Cierto @xerachdios yo tengo una farola al lado del balcón.. por eso recurrí a ésta técnica. 😉

i may use this outdoor this summer! I am planning on building a green house and using light deprivation to pull multiple harvests out of my short possible outdoor season. I’m not sure how I could make it easier on myself though. Moving a lot of plants indoors and out every day seems like a lot of work.

  1. Trich-world Post author Tuesday February 18th, 2014 at 11:45 AM

True, if you plan to add many plants, it is best to make a greenhouse with adjustable roof 😉

It’s too hot to grow outdoors where I live

  1. Trich-world Post author Sunday January 26th, 2014 at 07:40 PM

Unfortunately, the heat is the least of the problems when grown outdoors.. for the sun you can always add a mesh to cast a shadow .. 😉

Inducing early flowering outdoors In this guide we will speak about advanced flowering our medicinal cannabis on outdoor … or also called induced flowering outdoor.. For this system it is

How can I get outdoor plants to start flowering when days are still longer than 12 hours?


I have been growing outdoors but using extra light to keep them on a 24/0 schedule and will be flowering soon. I live in a warm climate, so I started them in wintertime. Right now spring is starting and days are getting longer.

The plants are an unknown Kush strain and are about 2 1/2 months old. I was hoping to flower them using just the sunlight, but I already have a 13 on / 11 off schedule, and by the end of their flowering it will be about 14.5 on and 9.5 off.

I know this would slow down the flowering, but will it even work? Should I run them on a 12/12 by covering them for a few weeks first or should I keep them going at 12/12 the whole time?


To keep your marijuana plants in flowering, you will need to provide a consistent 12/12 light schedule until harvest.

Any schedule where you have to remember to manually put something to cover your plants at the exact same time every day will be difficult to maintain.

If the light schedule isn’t kept consistently, it’s likely you’ll have issues (hermies) during the flowering stage.

It’s important to understand that marijuana plants need to receive 12 hours of uninterrupted darkness every night to stay in flowering.

If they start getting shorter nights, they’ll revert back to vegetative.

Marijuana plants need at least 12 hours of darkness every day in order to produce buds and remain in the flowering stage. This 12/12 light schedule must be maintained until harvest.

So if you do decide to cover or move your plants every day, make sure especially that they never get a short night. A short day is okay, but a short night (or one with light leaks) is the main cause of hermies and re-vegging.

I’ve heard stories of people who have successfully moved or covered their plants every day, but never known someone who tried it themselves. Usually I’ve heard this technique used to induce flowering earlier, not to be used every day throughout the entire flowering stage.

Theoretically it should work, but I imagine it’d be hard to keep this up every single day for 2-3 months.

Have you considered getting a cheap grow light and just finishing them indoors?

You mentioned that summertime is just starting for you. Therefore another option is to let some or all of your plants to keep growing throughout summer until your natural autumn causes them to start flowering.

You could use twisty ties and LST (low stress training) to keep them short, and they’ll have time to grow wide. Even one plant grown this way could gift you with a big harvest to last you through the next winter.

To keep your marijuana plants in flowering, you will need to provide a consistent 12/12 light schedule until harvest. Any schedule…