i bought silkworms and they're in a pupa and im wondering if its ok.(also,can i use vermiculite again and again?)
You're making your project way way harder than it has to be--and more inaccurate. In the first answer you got there will be too many variables--you won't know if the difference is due to the potting media or the different fert. concentration. Take the Perlite or Vermiculite. Both are almost nutrient-free. Then when you vary the amount of fertilizer you can see what difference there is in the plant's growth. This way you have only one variable--the conc. of fert.
Try this for your project. Plant seeds using only the Perlite, seeds using only the Vermiculite, seeds with topsoil only, and seeds using Peat Moss and Vermiculite. You will see a difference!! Peat Moss or Sphagnum Moss is available at any local hardware or boxstore location. It is cheap but bulky. If money is the problem ask your neighbors for a small portion of any they have. Contact your local nurseries and explain what your situation is. I am quite sure they will not only volunteer to give you the materials but greatly assist you in your project. Use them and you'll get an A. Good Luck.
Yes and this is better for the environment. Since the new rage is peat moss hanging baskets and since peat moss has become the in thing to add to your plants and gardens, the natural peat moss bogs are being harvested to death. The cutters come in, dig out the moss, and the ecoenviroment of the bogs dies.
