Is there any chance of Harvesting a pure 20-24 week Sativa at 45 degree?

romanoweed said:

But its not enough, if your daytemperatures below freezing.. Wich happens here in January.

I found some good Info. Basically many many People use bubble wrap. The bigger the bubbles the better the Isolation. Just average bubble Wrap. Big pricedifferneces at Stores. Also look for UV resistency for Longlivity, and deinstall it when not used, cause it can be dmaged from uv in 3 Years.


I heard someone saying it made 5 Celsius / 10Farenheit Difference in Winternight.
But searching for more reports.

The best thing i heard, you can use fat Candles to heat. One Person told each fat Candle would raise Temperature by 1 Celsius / 2Farenheit !

What i still didnt find out if People actually use no ventillation, i have read Winter-greenhouse Topics, but none mentiones Ventilators. They only open Doors sometimes cause mold.. Im bit confused?

Otherwise all sounded better than i thought, especially reported Temperaturedifference at night.

Lets geek out abit on Wintergreenhouses.

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therevverend said:

You need to get practical experience growing cannabis before you talk about 20 week flowering times at 45 degrees N. First get strains that will finish at your latitude, preferably late September but you can probably manage into mid October. There are banana belts in Eastern Europe along the Danube, as Koondense mentions yoss33 has grown some beautiful Zamaldelica but that's the exception not the rule, the guy has tons of experience which is key. And Zamaldelica is 'only' 14 weeks, 20 weeks you're into January and you'll be smoking grey mold.

Because of a seed screw up I ended up with a tropical narrow leaf variety, I'm around 45 degrees N. It didn't begin flowering until the end of September, unlike the temperate adapted strains I normally grow which are almost done at that time. I got lucky, no hard frosts but contstant clouds and rain. It flowered about 15 weeks, harvested around Christmas time. Mini, mini, scruffle buds. Certainly not 'trip weed'. Here's a couple pics.

You can see the weather damage, there's mature resin but it's been degraded by moisture, wind, and rain. It has a sweet fruity smell along with a grassy, hay, shake, type smell. No way it goes another 5 weeks to make 20 weeks flowering. I'll write up a smoke report when I try it, still curing it's too harsh at this point.

The biggest problem is not only is there low light intensity, the days are much too short. By the winter solstice the sun is up for 9 hours. It's so low in the sky it's blocked for most of the day by the landscape. And the weather is cloudy, foggy, overcast most of the time. Even though the plant had incredible resistance to boytritis it still had quite a bit of mold and the stem was rotting.

This has been reported over and over, many people have tried and failed growing equatorial strains in the north for longer then you've been alive. I feel like I did the best anyone could possibly do. The reason Thai and other equatorial strains have the reputation they do, as magical amazing trippy cannabis, the equatorial sun does something special. It's very rare to see someone grow them properly indoors either, the indoor lighting lacks the intensity they need.

There's a lot of tropical strain fans around here and there's always lots of positive feedback and congratulations when someone finishes a 20 week flowering plant inside. Deservedly so, it's hard as hell. But if you look closely at the pictures you see the plant is a shadow of true self, sick and dying, squirting out it's last few calyxes and hairs. It's a treat to the cultivator and appreciated by the connoisseur but it ain't much.

Then you look at the few tropical growers, usually in Queensland or Africa or a tropical island, and you see huge beasts with giant colas. THAT's how you get trip weed, not struggling to nurse a dying plant to squeeze out a bit of resin before it expires. There are exceptions but they're almost always master growers with years of experience who put in the time and dedication needed. They've mastered growing cannabis and are looking for a challenge, usually with a long breeding program.

You'll have much better luck working with nature, starting with strains adapted to your climate. Then spend a few years breeding, preferably indoors and out, crossing the strains with highs you like with the quicker flowering ones. And you'll be surprised, when you grow your own cannabis it's usually 'trip weed', you don't have to flower a plant for 20 weeks to get strong psychoactive effects. I do just fine with my hybrids, it makes a big difference having fresh live material as opposed to someone else's commercial stomped on, passed around stuff. But then I've spent years collecting seeds, growing stuff out, experimenting and getting better and better. And I know I still have a long way to go..

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romanoweed said:

Does selection work with pure equatorial Sativa? Or does it need indica in it?

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