Seed Planting Instructions
Planting cannabis seeds is very easy as long as you have good seeds. You might be surprised at how easy it is! There are many ways to approach planting cannabis seeds, including the paper towel method (yuck), but the way you’ll learn below using a cup of water is the simplest and easiest. Who doesn’t want to work smarter, not harder after all?
Place your cannabis seeds into a cup of water and then put them in a dark cupboard. (Sounds like the beginning of a magic trick, doesn’t it?)
Leave the cupboard door open just a smidge for airflow. In 24 – 48 hours, check to see if the seed cracked open and if there is a little white tap root sticking out. When you do see this, abracadabra, you can proceed to planting it in the soil. If you don’t see it, just leave it there for another day, but then if you still don’t see the white tap root sticking out, proceed to planting the seed in soil. An unsprouted seed like this has a low likelihood of sprouting in the soil, but you can give it 2 weeks or so to give it a legitimate shot at survival.
With your sprout (or your unsprouted seed) ready to go, prepare the soil by getting it thoroughly wet. As a reminder, you do not need to transplant your seed grown plants, so plant your seeds/sprouts directly into the plant’s final pot, whether it is a 5 gallon or 10 gallon pot, or any other size. Before you prepare the soil with water, don’t forget to ph the water to 6 – 6.8. Also, don’t allow for any dry pockets of soil in there.
When the soil is wet and ready, make a small 1/2 inch hole with your fingertip in the center of the pot and lay the seed with the sprout (root) facing down in it. Ideally you can use tweezers or a spoon to transfer the seed not your fingers. When using tweezers, you want to gently grab the seed, not the white root. It is best practice to plant 1 seed per pot, but if you want to do more, it’s not against the law. However, what usually happens is one will grow stronger than the other, and neither will perform exceptionally.
After the seed has been laid down, sprinkle soil lightly on top of it. You only need to use a pinch or two of soil, so don’t get carried away and dump a clump of soil on top. Also, do not PAT DOWN the soil. Just sprinkle the soil on. SPRINKLE!
Use a spray mist bottle and lightly mist the soil you just sprinkled on top.
Now put the pot with seed under 24 hours of light or 18 hours of light (on a consistent schedule using a light timer.) You can also add a plant identifier like a popsicle stick or plastic plant label to write the date down along with the name of the strain you’re growing.
The seed can sprout into a seedling in just a matter of 2-3 days. Most of the time, good seeds do. Occasionally they take longer. And with seeds, sometimes you get a dud, so don’t be too upset if you get a couple duds from time to time.
Sometimes you will seed shells get stuck on the seedling. In this case, simply spray it gently with water and use tweezers or your fingers to ever-so-gently nudge, push, or pull the shell off. If you have strong hands or a strong grip, BE VERY CAREFUL! In fact, I recommend asking someone with a gentle hand to assist you.
How To Water Seedlings
Seedlings typically won’t need to be watered at all the first week. That’s because you already got the soil in your pot completely wet upon planting the sprout initially. However, if you are in an extremely hot environment with 80 degrees Fahrenheit temperatures (and up), then it is possible you’ll need to add water during the first week. Here’s the rule: only add more water if you see the topsoil drying out. You need to water via a spray bottle during the first week. If you see the topsoil drying out, then you should mist it with water. On the second and third week as the seedling is developing, USE A SPRAY BOTTLE and continue to mist the soil with water as needed. Use water that is ph’d to 6 – 6.8 and do not spray the actual seedling itself.
For the first few weeks of a seedling’s life, growth is slow compared to how it will grow later on in months 2 and 3. Be patient and do not expect them to grow fast and do not overwater. If the topsoil looks and feels wet around where you planted the seed, do not add additional water. The plant at this stage is very fragile and must not be overwatered, so pay careful attention to your watering. Many new growers understandably feel they should water their plants every day, but that is not a good practice unfortunately. Overwatering will stunt your plant’s growth or kill it.
If the topsoil looks and feels almost dry, or is dry around where you planted the seed, then you should apply water via the spray bottle. Use your pinky to gently assess the soil around the seedling to feel how moist, wet or dry it is, but be careful not to disturb the roots.
Ideally, use a soil moisture meter to determine when to water the seedling. As a rule, always water when the soil is almost dry. Don’t wait until it is completely dry. The best time to water is when it is “almost dry.” On the “dry, moist, wet” scale, “almost dry” is just between moist and dry. The reason you don’t want the soil to get completely dry is because good microbes that keep the soil healthy can’t thrive there.
To apply water to a seedling, just use a spray bottle and mist water gently around the stalk as well as around the entire perimeter of the pot. Spray maybe 10 times or so, and then give the water time to seep in. You can repeat sprays, but only if necessary. If everything seems quite moist or wet, do not water again and risk overwatering. If everything still looks and feel very dry, don’t worry, there’s a good explanation for it. When soil is too dry, water doesn’t get absorbed as well, and can seep right out of the bottom of the pot. Another sign of dry soil is when the weight of the pot is light instead of heavy. If it is very light, then you will have to give more water if the water isn’t being absorbed well.
The leaves of a seedling (or adult plant) will point and “pray” to the lights when there is good light and the soil is not over or under watered. When you water, the leaves will wilt some, but recover soon thereafter in a few hours. If leaves continue to wilt and not point up towards the light, IT IS MOST LIKELY that the soil is too wet. So, do not water for a while!
Don’t worry if the seedling ever bends over and flops due to being weak. All you do is just push a bunch of soil around the base and prop it back up again.
REMINDER: Always use a spray bottle to water newly planted seedlings!
Marc Eden’s DIY Cannabis Cultivation Book For Beginners
Published by Green Carpet Growing, Inc.
San Diego, CA 92103
© 2021 Green Carpet Growing, Inc
All Rights Reserved
No portion of this book may be reproduced in any form without permission from the publisher, except as permitted by U.S. copyright law.
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