Growing carribean bag seeds in pots. Today they are at 16 weeks. I chopped the two males and have 3 females. Not seeing any preflowers yet. Or are the showing of female sex considered preflowers? Starting to wonder if this grow will have enough time to be successful. It’s September 2nd today. I don’t know the strain therefore I don’t know how long flowering will take. When does the outdoor grow season end in Massachusetts? I’m a few states south of there. Hardy zone 6a. Looks like I’ll have 12 hours of daylight around September 25th.
Flowering Late in Season
- Thread starter Peder1
- Start date
dsmer
Well-Known Member
My plants definitely started late this year here in mass, but not this late. Yours should have absolutely started flowering by now, if not, unfortunately you may not have enough time to finish. Obviously it’s hard to predict the weather but even if it starts today, your looking at a November finish at the earliest. I harvested last year first week of October.
Chief_Broom
Well-Known Member
Sativas always go late, but by now should be pretty far along in being covered with bud sites. You could be getting additional light through that window that is keeping that plant from flowering?
dunphy
Well-Known Member
This sounds like the issue, light leaking in from somewhere.
Sorry to hear OP, you may get lucky with weather but it will be cutting it VERY close.
No supplemental light. At least not intentionally.
Not sure what to expect in the next few weeks. My understanding is these are photoperiod plants. They require 12 hours of daylight or less to start flowering? Right now there is 12 hours 55 minutes.
Do preflowers show up before the switch over to 12/12? Does this not even matter outdoors? I was thinking it’s the same concept.
Average temps here are 56°F high and 42°F low for November.
Good point. There most likely is some light from inside. Not much I can do about that. I’m growing on my balcony. I’ll think about some options.
I read somewhere on the forum that outdoor plants won’t have issues with light from street lights and other lights because of the intensity of the sun. I don’t know. Either way I’m going to disburse our how to reduce the light exposure from inside. Plus I go out in the balcony and turn that light on.
dunphy
Well-Known Member
For outdoors, its not about getting 12/12 Im in Mass, have been flowering since end of july/early aug on all my plants, and today we still have over 13 hours daylight I believe...
They will flower once the days get short enough to have a certain amount of darkness that will trigger flower, which can explain your situation..if you have extra light leaking onto the plant when the sun goes down, they still think they are in mid summer vs. end of summer, and wont start flowering, Best bet is to go out there at night, all different times, right when the sun goes down, late night, early morning etc. and get a feel for what street lights, indoor lights, porch lights, traffic, etc. is reaching your plant, then you can put up a privacy wall with plastic or something to cover them from the light and HOPE that they finish before the weather and frost comes, which is up to your location and mother nature at this point..
EDIT* Preflowers will show up once the plant reaches a certain age if from seed they basically hit puberty and become sexually mature, the males are able to grow pollen sacks and disperse pollen, and the females calyces will show up and the pistils will be able to catch pollen and become "pregnant". Doesnt have anything to do with the light switching, I believe the timing differences is just dependent on genetics.
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Chief_Broom
Well-Known Member
This is the problem. Once the sun goes down you want those plants to be as dark as possible. Yes they are able to withstand the light of a full moon, but that’s it. Turning on an outdoor light (like the one you have on in the pic you posted) that shines directly or even indirectly on your plants will stop them from flowering.
You can with move them somewhere they aren’t getting hit with light from the house or put up a screen or move something the blocks the light from hitting tour plant.
It is very common for this to happen. Plants that receive partial shade from light at night will have the shaded part in full flower but the lit up part won’t. Same plant. Block the light, move them, or turn off the lights that are shining on the plant are your only options.