What kind of soil should I use for my garden ?- mostly herbs

For grasses a potting mix by miracle grow is fine,for herbs use the garden soil by miracle grow.

If you are planting in the ground all you need to do is doctor the soil. I always add used coffee grounds and crushed egg shells and epsom salt to tomato plants as I am planting them. Just mix it in the hole. Read up on companion planting to see what herbs and veggies are good to plant beside each other and which like their distance.

If you are using your existing soil please fertilize because it may be lacking due to the grass or whatever was growing in that spot. I usually amend a new garden with garden soil, sterilized manure and some peat moss if it needs it. Since you want to use pots, use Miracle Grow potting soil for gardens. You will need a very large pot for the tomatoes and some kind of support like a tomato cage. Tor the herbs you don't need big pots, You could easily grow multiple herbs in a window box without a problem, or I use ten to twelve inch pots for each herb to let them have lots of root room and grow big. I have a rosemary plant that I managed to keep alive by bringing it in for the winter and it survived the lack of sunlight and now looks like a small bush. It is in a ten inch pot. We have a pot, probably about twenty four inches, that we have six leaf lettuce plants in and they are doing great and we have harvested three times already and need to do it again.

your welcome

most of our herbs come from the Mediterranean area and don't require a special soil or fertilizers, most will grow right in gravel. Tomatoes need lots of natural fertilizer--manure or fish fertilizer, and well drained but moist soil. also benefit from a tbsp. of Epsom salts in planting hole, this will sweeten the fruits. Grasses can grow in almost any soil including clay, and don't require much fertilizer, water...once a week is plenty