‘Nose Twister’ is possibly not the best name for a plant but that’s what Nasturtium means in Latin. It was so named not because of any bad smell – the flowers have very little perfume – but for it’s mustard-like, peppery taste!
All parts of the plant are edible and if you pick them early in the morning before the sun heats them they will taste more mild than later on in the day. They are an excellent source of Vitamin C and Lutein and the leaves have antibiotic properties.
You can make a superb flavoured vinegar by steeping the leaves and seed pods in a white, rice, or apple cider vinegar (dilute the latter) for 2-3 weeks.
Apart from that it just has very pretty and colourful flowers (from pale yellow/white to deep red)