Hi all,
I recently bought a polytunnel/greenhouse and erected the structure in
my backyard.
My question relates to how to grow vegetables in it.
The most obvious solutions would be in either the ground or individual
pots.
Now, the ground is not the best, so I would be building a raised bed
inside the greenhouse and filling it with potting mix, compost and
manure.

What I'd mostly be growing would be tomatoes, eggplants, leafy
vegetables, and a variety of herbs.

What would be the medium recommended?

I've looked around and can't seem to find a definite answer, and all
the videos I watch seem to have vegetables growing in greenhouses on
individual pots, and not the ground ..
At least in smaller green houses, anyway.

The greenhouse I have measures (in meters) 2.1(l) x 3.5(w) x 2(h)