I just recently planted a packet of mint seeds from Williamsburg, Virginia that I picked up there three or four years ago. I put a bunch of Vermiculite in a pot (with rocks in the bottom) and began to water it. Mostly the rain has been doing the job for me. I did what the package of Vermiculite told me to do, by simply sprinkling the seeds on top of the fake soil and then watering it.
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Hi Paul,
I have never known just vermiculite. I have mixed my soil using not only vermiculite, but pearlite, canadian spaghnum peat moss and potting soil. I use equal portions of each. That should work. If you are only using vermiculite by itself, I would water it well and put a piece of plastic wrap over the pot. Keep checking it daily to see if any have sprouted. Keep checking the moisture level also.
I "googled" it for you. I will likely take 2-3 weeks for the seeds to germinate. The link below is for basic peppermint, but how different could the mints really be?
www.planet-science.com/
Good luck!
If the seeds are 3 to 4 years old they could certainly be too old to grow. I have never heard of vermiculite alone being used to grow plants. Usually it is mixed with potting soil or a soiless mix. I don't think vermiculite has enough nutrients to be the sole medium for growing plants.
I just read an article in a magazine to plant your herb seeds in seed starting mix, put vermiculite on top and a piece of burlap on top of that. Take the burlap of when seeds start to sprout. I have no idea. I would think when you take the burlap off the seedlings would come with it.
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