Growing seeds is a relatively simple process: Bury seeds in dirt, add water, heat, and light from the sun, and in most cases, something is going to sprout. The problem is, most of us conduct this process inside, because we’re trying to get a jump on the growing season. Inside, where there’s no sun, heat is hard to control, and the most your seedlings can stretch out their new little root legs is the size of the plastic cell they’re planted in. As such, it takes some practice to grow strong, resilient seedlings, and beginners make plenty of mistakes. The good news is, most of them are solvable.
Not enough light
This is how close lights should be to seedlings that haven't germinated yet or just have. Credit: Amanda BlumThe solution is, of course, to add more light. I find too often people starting out seeding for the first time buy one growing lamp to arc over their entire shelf of seedlings, when each tray needs 2000-5000 lumens (that's a lot of lumens). It’s not just how strong the light is but also how long they’re on: Seedlings need 14-16 hours a day of sunlight. Those lights need to be much closer to your seedlings than you think, too. Six to eight inches above your seedlings is the right distance.
If your seedlings are already too leggy, you can try a few things. First, if they’re tomatoes or peppers, you’ll be able to bury the stem deep into the soil when you pot up the seedling or plant it outside, and this will solve many problems. If it’s another kind of seedling, like cucumber, they don’t usually require the same strong stems, and will likely correct themself over time. It will help to run a fan in the room and run your hands over the seedlings a few times a day. Both will encourage the stems to strengthen.
Too much light
You can see how close the lights are to most seedlings, and how much light is applied. Credit: Amanda BlumNow, seedlings are susceptible to a lot of diseases, fungus, and virus, so you may find yourself concerned with knowing whether this is sunburn or something else. The good news is, it doesn’t matter because the solution is the same: Cut it off. The sunburned leaves can’t absorb light or nutrients and can’t recover, so cut them off entirely, and let the rest of the plant recover. Obviously, move the lights farther away, but don’t overcorrect. While seedlings can get closer to traditional lightbulbs, my experience is they burn easier with LEDs, so while traditional tube lights can be within inches of my seedlings with no issue, I keep LED lights six inches or more away.
This is, unfortunately, one of those problems you need to solve ahead of time. If a seed has been sitting in wet soil for too long, and it hasn’t germinated, it has likely gone rotten. You’d just need to start over; by the time you’ve figured out a seed isn’t germinating, it’s likely only a few weeks since you planted, so you haven’t lost too much time.
The seed mat you’re using to heat up your seeds could also be too hot, cooking your seeds. You want the seeds and soil to remain between 70-80°F, but no more. Once your seeds are cooked, they’re goners, so start over with fresh seeds.
Too much water
Yellowing leaves or mushy plants are usually a sign of overwatering. If the plants start to smell bad, mold is likely developing in the water, which is another sign there’s too much water. In those cases, the solution is to go the other way and use less water. Your plants may or may not recover. If you trim away any root rot or squishy leaves and stems, it may recover.
However, most seedlings will develop some green or white fungus on top of the soil, and that is not necessarily a bad sign. It just happens, and it won’t affect your seedling in any way.
Not enough water
If seedlings grow with the right amount of light, the stems will be strong enough to support a taller plant, even in a small pot. Strong root systems will develop with the right amount of water. Credit: Amanda BlumIf your soil block is really dry, that’s never a good sign. You want your soil to always be lightly moist, not dry. If you’re having trouble keeping your soil moist, you should consider bottom watering, as mentioned above, because it is a consistent method. The soil takes up what it needs.
Read More Details
Finally We wish PressBee provided you with enough information of ( Five Common Mistakes Beginners Make When Growing Seeds (and How to Fix Them) )
Also on site :