Outdoor grow forced flowering

SF2LA said:

This was 2 weeks ago, might take a video today when the sun comes out. it's been cloudy for months but bout to get 7 days of sun..!

Yeah concerned about mold/airflow/humidity at night. snapping side branches. damaging top colas (already look bruised n hairs touched..)

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Very nice plants and setup. Do you currently have fans on them? I didn’t see any in the video. Too bad you couldn’t rig a shade directly off that roof and just Rollitup as needed so u can still have airflow. Or maybe some panels to block the ambient light. Just a thought.

I posted link to original post in above comment.

But yeah definitely challenges of limited space/ urban setting/ not timing properly and starting in april to flower naturally...I have two fans but only during lights on (same timer..) - one vortex under at the root-zone and one oscillating stick fan at plant level - there's also a breeze for the tops during the day but night time they're completely suffocated =/ perhaps i should leave the under fan on at night under the tarp. the tarp mostly rests on the cages but any sag or commotion touches the top/sides.. thx for the help..

I would def leave the fans on! What about building a little stick frame to hold the tarps off the plants a bit.

PVC would work great as well

I finally got a hydrometer and humidity is at 85% with tarp on at the canopy, yikes. going to get bamboo stakes first to try to elevate it off the tops and will see if running a fan underneath helps at all. if not, going to have to forego the tarp and hope they don't reveg or herm..

I was puting tarp at late summer and it was O.K. doing it for two weeks.
This year, I´m going to put tarp on about 7th july and keep tarping until stretch is over, so about 3, max. 4 week´s.
Hope it will be enough, high humidity under tarp is a way to bud rot hell when late flowering.

husita said:

I was puting tarp at late summer and it was O.K. doing it for two weeks.
This year, I´m going to put tarp on about 7th july and keep tarping until stretch is over, so about 3, max. 4 week´s.
Hope it will be enough, high humidity under tarp is a way to bud rot hell when late flowering.

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July 7 til stretch done is closer to Aug when the days are already fading, sounds timed well. Do you think if i stop tarping in 10 days (week 5-6) and there's14:23 of daylight (but up from the 12/12 due to tarping), it'll remain in flower? Should i start untarping slightly earlier now as to not shock them? RH under tarp is about 20 percent points higher than background. Still need to see if i can get fans installed..