Can't get around that tilt of the earth thing. I think you'd have problems, ending up with 3 inch high flowering plants. I made the mistake once of planting some clones outdoors in early April, all 4 went into flower at about 5 inches, one re-vegged, the others flowered, turned brown and died! But hey, if you've got some old bagseed, give it a shot, nothing ventured, nothing gained!
Plants severely stunted - Looking for the reason
- Thread starter Phillybonker
- Start date
cbdhemp808
Well-Known Member
What is your night length now, @numismaticfanatic and @Phytoplankton ?
1/1/25, in San Francisco Bay area, Sunrise 0725AM to Sunset 5:01PM, but you can throw out the first 1/2 hour and the last 1/2 hour, because the angle of the sun is very low (plus I have hills that block direct sunrise/sunset). So about 8 1/2 hours of daylight, 15 1/2 hours of dark.
1/1/25, Florida would be around 11 hours of daylight, 13 hours of dark +- about 20 minutes.
cbdhemp808
Well-Known Member
When I said "night length" I was referring to the dark period aka scotoperiod. Sure, at dawn and dusk there is a very brief period where the sunlight isn't bright enough, or dim enough, to affect the flowering hormones. In terms of photosynthesis, sure... the sun must get high enough in the sky to kick in. And sure, solar angle also affects this, throughout the day.
At any rate, both SF and Florida have longs nights at this time of year, more than 12 hours. So for outdoor plants, flowering would initiate in the middle of August (SF) and beginning of August (central FL). That's for a dark period of 10.5 hours. It would be later for sativas requiring 12 hours.
Yep, that’s why I can’t plant photos until about May, or they’ll flower. In Florida, it’s probably warm enough even in winter, to grow autos.
numismaticfanatic
Active Member
numismaticfanatic
Active Member
Not far from the ruckus yesterday.
numismaticfanatic
Active Member
Haven't had old bagseed for MANY years, and I learned my lesson several years ago. I did smoke that 3 inch bud, it was good.
numismaticfanatic
Active Member
What I am trying to say is if there is not enough sunlight hours and more dark hours the plant can't fully veg and will flip itself straight into flower, which could cause the stunted appearance. The temperature is not the most important factor unless its freezing....I wouldn't be surprised if those either begin flowering or hibernate for a bit then stretch as we get closer to spring?.....
Of course I could be wrong however that is my experience with late fall/winter outdoors grows.
Of course I could be wrong however that is my experience with late fall/winter outdoors grows.
cbdhemp808
Well-Known Member
I'm confused. @Phillybonker what's your night length there now? Sorry if you already said, but are they already flowering?
If I am remembering he mentioned that he is in New Zealand and somewhere in the southern half of the country. That area will have a sunrise of about 5:45 to 6:00 am and a sunset of about 8:15 to 8:30 pm.
He's in the Southern Hemisphere, NZ, not sure if it's North or South island, but it's summer. Not flowering, just growing slowly.
dynamohum
Well-Known Member
True that!
cbdhemp808
Well-Known Member
OK, I see about 9 hrs of dark, but depends on where in NZ. It's in the 8.5 to 9.3 range. For Wellington, night length will reach 10 hrs on Feb. 7, and 10.5 hrs on Feb. 19. Night length reaches 12 hrs on March 23.
Today the solar noon angle is at 78° for the tip of the north island and 66° for the southern tip of the southern island. (The max solar noon angle for NZ is almost 79° on Dec. 20, at the north tip of the north island. The sun never gets directly overhead at 90°. On the same day, at the southernmost tip of NZ, the angle is almost 67°.)
For Wellington, the solar noon minimum angle is 25° at solstice on June 20 (middle of winter). The max angle is 72° on the other solstice, Dec. 20 (middle of summer). So, the angle of the sun is now heading toward the minimum. During January, the angle will reduce by 5.6°. During Feb. it will drop another 9°.
At this time of year, the farther south in NZ, the longer the days and the lower the sun angle, and the farther north, the shorter the days and the steeper the sun angle. (In the middle of winter, the farther north, the longer the days and the steeper the sun angle.)