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lighting for weed seeds

With LEDs, depending on which you select, you can achieve comparable energy output to HID, but without nearly as much heat! Thanks to the efficiency of the system, which we’ll speak more on later, all the energy it takes in is directed through hundreds of little lights. Far less gets wasted.

However, more powerful lights will naturally need more energy to run, and especially powerful lamps will emit enough light to warrant a cooling and ventilation system. That, of course, will lead to a significantly higher energy bill than otherwise.

Decreased Water Usage Leads to Fewer Nutrients in Turn

Light is vital to photosynthesis, and thus essential to the growth of almost all plants. But, the specifics of how cannabis plants receive light are especially important.

Adjustable hangers are especially useful, as you can adjust the light intensity your cannabis receives depending on its phase and development. If your plants need some extra shine, you can lower the lights towards them, then bring them back up when things get a bit too warm.

It may seem like you can just use any sort of grow light and achieve sufficient results, but that’s far from the truth. Different lights are calibrated for different plants and grow spaces. Some may not provide enough light, causing wilting and poor development, while others exude too much heat and cause burning. Others still may hit the sweet spot in terms of supporting growth, but bleed cash in terms of energy efficiency.

For those who are growing indoors, cannabis seedlings may be put under lights as soon as they emerge from the soil or growing medium.

Not sure whether to grow your cannabis seeds in the sun or under lights? This article explains how much light you need, how to prevent your seedlings from falling over, and when to plant them outside.

How much light for cannabis seedlings?

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.)

With best wishes,

Good morning Susie,