Heat Stress? Auto not fully blooming

queljoel
queljoelstarted grow question 1mo ago
Hi Growers! Quick question, I have this autoflowering plant. It should be in full flower since a few weeks, but somehow it's a bit stuck. What do you think? Heat stress? I mean we had hardcore temperatures here in Europe.. might be
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cangrowz
cangrowzanswered grow question 1mo ago
Hey queljoel! That definitely looks like severe heat stress. Black fabric pots on a hot balcony can cook the roots when the sun is beating down on them. When the root zone gets that hot the plant completely stops taking up water and nutrients properly which explains why she is stuck and turning yellow. Those thin curling leaves are classic signs of the plant trying to protect itself from the intense heat and light. Try raising the pot off the floor slightly so air can flow underneath it. You can also wrap the pot in something white or shade it so the sun does not hit the black fabric directly. Give her a good watering with plain water during the cooler evening hours to cool the root zone down and let her recover. She is definitely a bit stunted right now but once those roots cool down she should slowly get back on track and start blooming properly. Happy Growing 🌱?💚
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Argos
Argosanswered grow question 1mo ago
Heat-resistant best choices Acapulco Gold Sunny, warm-loving classic with strong outdoor appeal. Acapulco Gold Auto Faster, easier version for smooth summer growing. Durban Poison Flexible outdoor favorite with South African roots. Durban Poison Auto Quick, practical autoflowering variety with warm weather appeal. Amnesia Haze Powerful autoflowering variety for sunny summer growing. Amnesia Haze Auto Fast autoflowering variety for easier summer growing. Sour Diesel A bold classic with strong outdoor potential. Sour Diesel Auto Quick, flexible autoflowering variety with diesel-rich flavor. https://weedseedsexpress.com/collections/sale
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Argos
Argosanswered grow question 1mo ago
the root system in the small pot couldn't handle the intense heat stress, there were also mistakes with watering and nutrient intake, it's not too late to roll a new die and start a new planting because unfortunately these plants are almost dying, they won't mature.. for the next planting, when replacing, use at least a 15-liter pot or larger. temperatures above 40 degrees Celsius and nighttime temperature fluctuations.. it wouldn't hurt to choose a strain with suitable heat tolerance genetics that matches the climate, and pay attention to proper watering and nutrient intake. growdiaries.com/diaries/314737-grow-journal-by-argos
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RemoveYourChains
RemoveYourChainsanswered grow question 1mo ago
Heat shouldn't be a problem in itself, I have a friend who grows outside in europe and his plants were in full sun all through the 40C+ heatwave and they are thriving. Without knowing anything about your grow (outside of it being auto and outside), make sure to check your basics: - soil quality - soil ph - Water ph - Nutrients - genetics - watering schedule (if it's hot outside it's hard to keep the medium from drying out too much which can lead to your current situation too)
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LPinto
LPintoanswered grow question 1mo ago
Good afternoon, For me, this plant is under stress, maybe due to lack of water at the right time... stress usually hinders growth/development. If this plant were mine, I would remove those old/burnt leaves...
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Schafe1001
Schafe1001answered grow question 1mo ago
If you’re de hydroponic, I’d be curious to see how brown the roots have gotten or maybe even reddish brown
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00110001001001111O
00110001001001111Oanswered grow question 1mo ago
Maybe? But, there are multiple things going off the rails here... nutrtion is not meeting needs and this plant grew a shit ton of leaves, so it points toward not enough light per day. hard to say for certain. Look up DLI for this month in your region. A cursuer www search will provide plenty of references for this information. Then consider how much of the day this plant gets sun (half the day? take 1/2 of that DLI, or maybe 60% etc) and deduct from that average DLI for a more accurate estimate. If it's below 20-25 DLI, it's probably the light levels as to why it's slow to form or forming weak buds etc.
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Altitonans_Fulmen
Altitonans_Fulmenanswered grow question 1mo ago
Lol genetics. Oh you were in a car accident and broke both your legs and arms. "Genetic failure...............throw it away, it will never be anything good." 40°C, the environment completely disrupts the plant's ability to uptake water and regulate transpiration. Rapid drying of the medium causes the salts left behind to concentrate, leading to dramatic EC spikes. When a plant is subjected to these massive osmotic swings, the root zone becomes highly toxic or throws essential nutrients out of balance. If the plant was perfectly healthy at germination, this collapse is unequivocally an environmental and cultural geographical issue rather than a genetic failure.
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Organoman
Organomananswered grow question 1mo ago
Genetic failure...............throw it away, it will never be anything good.
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