I feel positively nostalgic for chard! As Bev says, if you treat the stalk and the leaf as two separate vegetables, its charms will become more apparent.
Tamsin, you can even make holes in the bottom of the bag of compost, cut the top off, and grow stuff straight in the bag. For some reason, I did more gardening when I was a university student than ever since - 7 of us in my flat dug up the entire back garden...and missed a few lectures while we were at it.
If you have twitchy fingers, it's amazing what "cuttings" can be found hanging temptingly over garden walls (ask first, you will not only get a glow of virtue, you will probably get 10 more plants as well!), or more righteously, in corners of badly maintained carparks etc. Moss is nice to grow too, and plenty of that around waiting to be taken home.
I have a kind of neighborhood plant-swap network developed from chats over garden fences - one lady comes and raid bits off my chrysanthemums when the season is right, and heels in some little donation in return - one advantage of my "garden" being mostly an 18" strip between house and road!
Currently doing duty as containers are: the teapots, old cracked bowls, a bent metal bucket left behind by a road crew (looks wonderful with geraniums and daisies!), the bottom of a large rubbish container which lost its lid in the typhoon, Viohazard's and Airman's toy trucks with sempervivums in the trays, a chunk of wood which simply has plants and soil mounded up on top of it (needs a lot of watering but looks pretty - look for a book called "Gardening on Pavement, Tables, and Hard Surfaces if you want to get bit by that particular bug)...and even one or two actual plant pots!
Yesterday I found THREE New Zealand plants on sale at my local garden centre, and was overcome with homesickness...no I'm hoping that my husband won't notice just how many new things are concealed behind the older greenery!
I did make up a container of his mother's favourite plants to compensate - cuttings from her geraniums, lily of the valley, and a pretty little country favorite whose name in Japanese means "forget the city"!
P.S. Maggiemay, my honesty is flowering too! The seeds don't look their best in the rainy Japanese early summer, but the flowers are so pretty and unpretentious.
My rosemary is #2 of that ilk (#1 succumbed to the constant upheaval of having all my kids' friends' hamsters buried under it). I like the way weeping rosemary looks with nutmeg geranium's small leaves and dainty white flowers.