![]() ![]() These lights put out very little heat, and draw little energy making them ideal for this type of cultivation. ![]() You’ll want to check on the amount of lumens your lighting puts out, and you want to make sure all the light is in the blue range.Ī regular old fluorescent shop bulb will work but you’ll get better results using the newer T5 bulbs. If you don’t have a greenhouse I recommend starting your cannabis starts indoors under artificial lighting. They’re burning through the food reserves in the cotyledon at a faster rate than is sustainable.īecause the stalk is stretched out, it takes more energy to transport the food to the different parts of the plants.Īnd, because the stalk is stretched out, it takes more energy to transport the food to the different parts of the plants.Ĭannabis starts need more than a south facing window, especially during a spring like we’ve had. Leggy plants also have a few other things working against them. This creates a top-heavy plant with the thin stalk, inadequate to the task of supporting the whole plant. The result is a plant start that has a long, thin stalk and the cotyledon and the first set of true leaves precariously perched at the top. They’re getting some light, just not enough, and that’s causing them to reach as far as they can for the light they do have. The weather this spring has not been too sunny – which is what I attribute to this uptick in leggy plants. This is a direct result of them not getting enough light. ![]() And everyone’s having the same problem – their plants are veeerrryyy leeeegggy! Photo courtesy of I write this because I’ve run into lots of folks who are having issues with their starts at this critical stage after the cotyledon has emerged but before it has enough leaf material to sustain itself. The plant tissue is delicate, it’s relying on the food sources in the cotyledon, and needs lots of light to thrive. Until that happens, usually with in a couple of weeks, that plant is at it’s most vulnerable. It’s not until the first few sets of true leaves appear that the plant is able to generate enough energy to sustain itself. It’s quite delicate, green and grey in color – or sometimes with a purplish hue – and is responsible for holding up the emerging leaf sets.ĭuring this time, it’s important to understand that the root system is developing below the surface and that all this growth, both above and below the surface is sustained by the initial food source in the cotyledon.Ĭannabis starts need more than a South-facing window, especially during a spring like we’ve had. At this point the stalk is this thin stick of fleshy plant material. The cotyledon are those two round leaves that first appear on top of the stalk. In a couple of days the cotyledon emerges from soil and the plant begins to grow towards the light. It all starts when water meets the seed coat and germination begins. It’s that time of the year and cannabis seeds are being started all over our wonderful state. ![]()
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