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    yellowing leaves: heat stress? nutrient/ph problem? (100% perlite grow)

    Hello, Recently acquired 4 plants (blueberry) at each around 6(?) weeks veg growth (about 2 feet tall). They were previously grown in coco/soil mix, I think? Re-potted them in 100% perlite, and fed them with Optimum Bloom (Hard Water) A&B (Growth Technology). At the same time, I acquired some...
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    too late to top?

    And yeah, they're all really skinny and stretchy. I haven't been keeping a fan on them constantly, I only just started a couple weeks ago. Also, the skylight is really really high up, so they're just reaching up towards it. I can tie the plants to stakes if they're not strong enough to hold...
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    too late to top?

    Thanks for that explanation, that's really clear now! I'm not sure when they'll be able to flower. The days are still really long here, so I might just have to wait until autumn? Unfortunately, it's not possible for me to move them outside. I've been contemplating getting some CFLs to help...
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    too late to top?

    I've gone ahead and topped each of the plants at the new growth only (except for #4, which was already topped by my cat). I'll see how that goes... Regarding supercropping, is it possible with a plant with only one main stem? Would I bend all the little branches except for the fan leaves?
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    too late to top?

    Hello all! I'm a complete newbie, and I'm wondering if someone could give me some advice. I'm growing four plants indoors, under natural sunlight (skylight). They've been growing for a few months, not always in direct sunlight, due to the position of the sun over my skylight. And the summer...
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