How to Grow Plants from Seed : How to Fertilize Seedlings to Keep them Nourished & Growing


Hi, I’m Doug Smiddy of Smiddy’s Gardening
Services here on behalf of expertvillage.com. Today we are here to talk about starting your
plants from seeds. You don’t need to fertilize when you plant and the reason is, a seed is
an embryo and within that embryo come all the nutrients the plant needs to get started.
So if you fertilize it when you plant it it may be just too much for that little embryo
or seed to handle. So what you want to do is wait until after the plant emerge. When
the plants emerge they are going to start off producing one or two what they call a
seed leaf also known as a cotyledon. These are really just from the inside of that shell
of the seed and they kind of come out with the plant. There are still plenty of nutrients
in there. When you fertilize is when you produce a second set of leaves. As you can see these
seed leaves in this little seedling have gotten a lot bigger and now they are starting to
produce their first true leaves. Now is the time to fertilize. The other consideration
is what do I fertilized them with? Well, what you want to do is stimulate your root growth.
Now when you buy a fertilizer it’s going to give you three numbers. It’s that middle number
that you want the highest and that middle number represent phosphorus. Phosphorus is
what stimulates your root growth. So buy a water soluble fertilizer. In my, in this case
I use a two four two fertilizer. It’s going to have a little bit of nitrogen, little bit
of potassium but it’s going to have a more phosphorus again to stimulate those roots
because that is what you want to do. Mix it per the directions. I can not over emphasize
how important that is. A lot of people tend to think double up on it the plants will grow
twice as fast. You might shock the plant to death so if it says add one tablespoon per
gallon, add one tablespoon per gallon, not two. If you have like a one quart container
you can just divide up how much to put in there. You mix it in with your watering can,
shake it up pretty well and again the beauty of this system is you have your mixed fertilizer
water mixture just take your cell out, pour your water in like that, until it’s about
one inch, or deep enough so these cells can absorb that mixture, put your cell back in
and you’re done.

6 thoughts on “How to Grow Plants from Seed : How to Fertilize Seedlings to Keep them Nourished & Growing

  1. Great video, I never knew when it was safe to start fertilizing, I thought the food leaves had to die first, so thanks for clearing that up, and I also didn't know what kind to start on.

    Less fertilizer is always better than too much, but none at all and your plants will die.

    If your intimidated to fertilize because your afraid your plants will die, or if you don't have the proper measuring devices, just approximate to what you think is LESS than what you need, it will be better than nothing.

  2. May i know Sir how much of fertilizer is needed in 81 sq m area?I will use 5 tree species seed in coal mining area.If you can give me some idea it will be helpful for me.

  3. Some people say to use 1/2 of the recommended instructions on the fertilizer label at this stage of the seedling. Logically, the next questions is the frequency of fertilizing. Do you fertilize every time it needs watering (you can tell if the top of the seed starter mix looks dry and not dark) or perhaps every other watering? Next, question is at which point do you use the recommended fertilizer at full strength.

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