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starting weed seeds with led lights

The biggest advantage of these standard LED lights is their price point. Most are manufactured overseas, and you can find them aplenty on eBay and other places online. A disadvantage is that their quality is often lacking; they can be less than reliable, and their light output is often lower than other types of LEDs, leading to lower yields. To remedy this, we’re now seeing standard LEDs begin to include COB LED lights or UV LEDs in addition to the red and blue, which can help with yield and bud quality.

The growing prominence of LED grow lights in the cannabis community is undeniable. So we have put together a few tips for anyone wanting to give them a go.


As your seedling grows taller, stronger, and approaches the most robust part of the vegetative growing stage, you can then gradually increase the light intensity.

Compared to HID lights, LEDs are a lot more energy-efficient. They use less electricity, and will cost much less to operate in the long-run. Although high-end LED lights can sometimes cost a good chunk of money outright, the investment is almost always worth it as your savings over time will make up for the higher initial cost. Likewise, quality LED light fixtures will also have a longer life span compared to HID, the latter of which tends to lose performance over time and needs frequent replacement. A good LED light can last you many years with no maintenance needed.

LEDs produce less heat, which means less stress on your plants—so you can move your lights closer to your plants without any negative effects. Higher light intensity translates to higher yields!

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.

Simply take the seeds and place them between a couple of wet paper towels. Next, take the towels and put them between two plates to create a sort of protective, dark dome. Finally, make sure it all stays relatively warm (70F-90°F) and after several days the seeds will begin to sprout.

Common Methods

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Place the seeds in a glass of warm water, move them to a dark environment, and within about 24 hours, the taproot should begin to poke through.

The following methods are all tried and true alternatives to the direct planting of the seeds. However, growers should take note of the color of their seeds before attempting any germination, as immature seeds will not be successful.

A great DIY solution is to use simple plastic cups, one for each peat pellet. Cut the top off a small plastic drink bottle and place it over the peat pellet with the seed as a dome.

Cannabis seeds need no light when they are germinating. In fact, they require an absence of light. All of the methods below call for darkness.

Germinating Weed Seeds In Soil

The only thing you need for this method is a paper towel, although I would also recommend using two plates.

They need the right amount of light, the correct temperature and the correct amount of moisture.

This method is the easiest, since you simply let the seeds germinate in the same place where they will grow afterward. Not having to transplant the seed after it sprouts means you don’t risk damaging it causing it shock that will slow growth. The main drawback is a lower success rate.