I'm new to veggie gardening and have found the 'real seed company' really good. They only sell a smallish range of vegetable seeds but they review each one and just sell the ones that they know work well in our climate, without to much fuss and most importantly the ones they think taste great.
I would recommend a raspberry bush in a pot - that way you'll get leaves for their medicinal properties and fruits for your kitchen. Maybe you have somewhere that could do with a new hedge or somewhere where you could make a little arch - there you could have a dog rose - great for petals and rosehips too. Yarrow is amazingly versatile (wound healing, fever cooling, urinary tonic and much more) and also a pretty looking & low maintainance border plant.
A company called Nicky's seeds has a great range of herb seeds and these have gone well for me in the past. You can get the more hard to find herb seeds there, you could try caraway, fennel, soapwort, vervain, stachys - the world is your oyster. I wouldn't plant horsetail though; as useful as it is medicinally it'll take over you garden and it's ever so hard to get rid of.
Do be sure to check your varieties though - they are often not interchangable. For instance you might want to take comfrey leaf as a healing tea (Symphytum officinale) but you don't want to take Russian comfrey (Symphytum uplandicum) internally, that one is good for making a nutritious garden feed but you wouldn't want to feed it to a human as it's poisonous.
Have fun in the garden
P.S. what kind of sling do you have your baby in? I'm looking for a good one for gardening and going to the shops with....
