Coco does not naturally contain any nutrients, so if you don’t give some from the beginning in the water, each plant only has what was contained in the shell and Rapid Rooter! Seedlings in coco coir grow far faster if you start them off with seedling-strength nutrients from the beginning! Soil – water with plain, pH’ed water at 6-7 pH, no nutrients , for the first 3 weeks or so – your plants will be able to live off the nutrients in the soil, and adding extra might be overload and nutrient burn them. Hydro – install into your system by putting the Rapid Rooter into your net pot.
Typically you either water your plants every day until the roots reach the reservoir, or you have a drip feed which waters the plants for you. Don’t water plants until soil or coco is dry up to first knuckle. You want to water your plants every 2-3 days if possible. If the growing medium feels dry again within 1 day, give double the amount of water the next time. Repeat, until you can give enough water to at least a little runoff, and have it dry in a few days. Try to maintain a schedule with you watering your plants every 2-3 days. If your growing medium takes longer than 3 days for the top inch to dry, it means the soil is staying wet too long, and plant roots aren’t getting enough oxygen. It also puts your plants at risk of getting fungus gnats.
Try giving less water at a time until plant is drinking more. It’s possible you may have a problem with drainage in your medium (what is good soil?) or for some reason water is having a hard time coming out the bottom of the container, for example if there no drainage holes. You also should always make sure to remove runoff water instead of letting the plant sit in it. If the medium is drying in less than 2 days, it means you need to give more water to the plant at a time, or possibly transplant to a bigger container if the plant has outgrown its old one. Complete guide: How to water cannabis plants perfectly every time If seedlings are droopy, how can I tell if it’s caused by overwatering or underwatering? If your seeds still aren’t sprouting and growing properly, consider the following factors. If there’s no germination at all… Temperature may be too hot or cold – aim for 75-80°F Too wet – seeds and seedling roots should always be moist, but should not be soaking wet Too dry – if a root dries out the seedling can die! Bad seeds – It might not be you, it could be the seeds themselves! Even if you purchase from a good breeder, sometimes you still get duds. If seeds sprout, but then stop growing… Temperature is too hot or cold – aim for 73-78°F Too wet – new seedlings don’t like “wet feet” so make sure your Rapid Rooter or growing medium nevers looks shiny or muddy, as that means there’s too much water! For this reason, it’s also usually recommended to avoid using a humidity dome with seedlings unless your air is dry. Although clones love humidity domes (they need water from the air because they don’t have any roots to get water), seedlings like it a little more dry or roots tend to get mushy. Too dry – less common unless you live in a very dry area, but sometimes your medium dries out too fast if you’ve got a heavy-drinking, fast-growing seedling! Too much light – if the seedlings get blasted with high levels of light right away, it can shock them. They may need some time to adjust to higher light levels. Simply starting your grow light a little further away that normal is usually enough.Think sunny window at first, and start ramping up after a week of healthy growth. Not enough light – if seedlings are growing long and stretchy without growing new sets of leaves, it means it wants more light. No light for more than a day – if the sprouted seed doesn’t get light within 24 hours after sprouting, it may die. Once seeds are sprouted, get them in a Rapid Rooter and under at least some amount of light as soon as possible! Roots damaged – If somehow your roots got damaged, it can sometimes stop the seedling from growing. Unfortunately sometimes you will never know why certain seeds just don’t thrive! It’s all part of nature 🙂 How do I germinate marijuana seeds? Cannabis germination is the process of getting your seeds to sprout, and you know sprouting has occurred when a little white tendril pops out of the seed. The little white tendril that emerges from a cannabis seed during germination is your plant’s first root, known as a “taproot.” All other roots made by your cannabis plant in its lifetime will sprout from the taproot.
The taproot – and maybe a few tiny early offshoots of the taproot – will get longer and longer, pushing the seed up, and after the shell breaks through the surface of your growing medium, the first leaves (these first round leaves are known as “cotyledons”) will emerge from inside the cannabis seed. The cotyledons were already created as part of the plant embryo in the seed itself, so the cannabis seedling doesn’t have to grow them. In fact, the emerging first leaves are what break apart the shell after it’s cracked open by the taproot, as pictured here. The next set of leaves after the cotyledons are your plants first “true” leaves and will have jagged edges (serrations). At least, they are the first leaves that your seedling cannabis plant has grown all on its own, unlike the cotyledons which were already formed in the seed. Cannabis seeds can be expensive, don’t waste your seeds with bad germination methods! (Wait, where can I get cannabis seeds?) What Do Marijuana Seeds Need to Germinate? Marijuana seeds need the following to get the best germination rates: Moisture – Keep things moist but not soaking (you can soak hard seeds for up to 24-32 hours, but do not leave seeds soaking in water for longer than that). Peace – Seeds need to be left alone while you’re waiting for the taproot to show up.
Warmth – Keep things warm to get the best germination rates, but not too hot! Seeds can definitely germinate in cooler temps, but germination tends to take longer when it’s cool.