With more and more people being interested in growing their own, allotment plots can be slim pickings in cities. But that's not to stop you from growing herbs, vegetables, and medicinal plants in your own small garden space. Whether it is a sprig of mint for your Friday-night mojito or you are interested in secondary uses for beautiful flowering varieties, there are plenty of options to explore. Herb gardens are best planted up in the early spring months, allowing you to enjoy their produce throughout the season. Even better, you can keep building upon your patch all year round, aside from when the ground is frozen.