When you plant in the bottles

[Marcel Fex]

When you plant in the bottles using the cups, what medium are you putting into the plastic cups that you have your seeds in?

The cup with the plant sits inside the 2-liter bottle.

[Ron]

I start my seeds in vermiculite and then transplant them to the 16 oz solo cups with grow rocks.

The cup with the plant sits inside the 2-liter bottle.