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starting marijuana seeds under led lights

Providing your plants with enough light can become an issue if you want to grow more than one. For example, one single 300W LED light fixture may be fine for one or maybe two plants, but it may not be enough to cover a bigger space with multiple plants. So make sure to reference any recommendations from the vendor and/or LED manufacturer on how much light you will need for your growing space. You can also look for reviews and user reports on grow forums if you want to know more about using a particular LED.

So, what is the ideal distance between your grow lights and your plant canopy? Unfortunately, there is no standard, since the best distance during the vegetative and bloom phases of your cannabis will depend on your specific LED. Each type can vary slightly, therefore affecting the final distance they should be from your plants. The first port of call is to check the manual you received with your LEDs for any information on recommended distance. If you can’t find it there, check out the manufacturer’s website. If, for whatever reason, you cannot find any information, you can keep your LEDs somewhere between 30–45cm from the canopy—around 45cm during veg, then a little closer when your plants are flowering.

Lastly, if you get a cheap LED from overseas and you run into trouble, you will likely have a hard time with warranties and returns. As almost nothing is as important as your lights when growing cannabis indoors, it’s simply not smart to cut corners here. By spending a bit more on a quality LED, you and your plants will be so much happier. Plus, high-quality LEDs are much less expensive to run than HIDs, so you’ll surely save some serious cash on your energy bill over time!

6. PROVIDING AN IMPROPER LIGHT SCHEDULE

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This is probably the most common mistake that inexperienced growers make upon just starting out with LEDs. Since HID lights emit a lot of heat, out-of-the-loop growers might be overly cautious with their LEDs, placing them too far away; alternatively, those aware of the benefits of LEDs might get cocky and place the lights super close. If you hang your LEDs too far away, there’s a good chance your plants will over-stretch in an effort to reach closer to the light. If, on the other hand, you place your LEDs too close to your cannabis plants, this can stress the plants more than they can comfortably handle, causing burning and bleaching of the foliage and buds.

The issue with many of those cheap “beginner LEDs” is that some manufacturers intentionally confuse the grower with specs and numbers, such as wattage. This seems fine, except that, with LED lights, wattage doesn’t really say how much light the LED is emitting; it says how much energy is required to produce the light. Instead, we’re measuring in lumens—the amount of light actually emitted. So, regardless of how high the wattage is, the light could still have a poor spread and/or doesn’t penetrate the canopy well. In other words, don’t fall victim to misleading information, and consider the source of your product.

At most high-quality seed shops, you can get autoflowering cannabis seeds and feminized photoperiod cannabis seeds. Autoflowering strains are relatively easy to grow, especially when it comes to lighting: You can just keep them under an 18–24-hour daily light schedule from the moment you plant your seeds up until harvest. They flower automatically after a few weeks of growth, which makes them very convenient.

Getting cannabis seeds to sprout is known as germination. In nature, this happens underground, but it isn’t an entirely reliable process in a well-organized grow-op.

In the case of cannabis, it is often better to germinate a seed before planting to ensure that the plant will indeed grow and eventually lead to a successful harvest.

Common Methods

Always avoid seeds that are light green, as they have not aged long enough to sprout. More mature seeds are darker in color and almost brown.

Setups involving many pellets on a warming rack are colloquially known as “germination stations” and are very commonly used in both amateur and professional grows. Very little trauma to the seed can occur here, and the trauma of transplantation becomes a non-issue.

When older, dried out seeds need to be revitalized, a good soak can wake them up when done properly.

Ciao Susie il consiglio che ti do io x esperienza trentennale, pianta direttamente nel terreno, è più difficile ma dà risultati del 30% in più specie nella quantità. Allora metti il seme in acqua almeno 15 ore,dopo pianta il seme (anche a 23 centimetri sotto terra) innaffia bene e dopo ogni giorno inumidisci fino a quando non spunta la piantina, una volta germogliata io personalmente non la innaffio x almeno una settimana (dipende dalla temperatura esterna) ha lei i nutrienti x sopravivere almeno 10 giorni. E poi vedi se cresce più forte. Io faccio dei mostri di 6 metri

Hey I have germinated two seeds. Do I put in a greenhouse that gets 9 hours of sunlight a day or put out in direct sunlight for same amount of time? Only popped through soil 3 days ago.

With compact fluorescent lamps (usually 100w or more), a distance of around 15cm should be maintained between the top of the young seedlings and the bulb.

When to plant your cannabis seedlings outside?

My sprouts are about 2 1/2 – 3 inches tall. They have produced the first and second smooth leaves, as well as the first serrated leaves. They also have the second, tiny serrated leaves coming out. But the initial leaves have turned slightly yellow. I’m concerned that I am, perhaps, overwatering? Any suggestions will be welcomed. (Thanks for the suggestion for moving air. I will try that to strengthen the stems because they will go outside once the threat of frost has passed.)

In general, seedlings intended for outdoor growing should be kept by a sunny window for the first week or two after emerging from the soil. When they have grown their second or third set of serrated leaves seedlings are usually hardy enough to flourish in direct sunlight.

Bonjour,
Concernant les tubes fluorescents normaux ( 18-36 W ), que me conseiller vous ?
Tubes normaux de couleur blanche, ou tubes horticoles de couleur rosée ( comme ceux qu’ont peut trouver sur les aquariums ).
Merci pour vos réponses.

I had 20 plants just fall over I growning them inside .I put outside for a few hours got up the next morning.they were laying over.and I like to know why?