Posted: 09/04/2016 at 07:10
Depends what else you're putting in there - but I would've thought one or two at the most - the plants will really bush out if you give them the space.
The thing about nasturtiums is that they really do best on poor soil, so don't give them fertiliser.
The problem is that other hanging basket-type plants (petunias, geraniums, fuchsias etc) really need fertiliser in order to perform well so they don't grow well together.
But a basket of just nasturtiums would look great
Don't forget that you can eat the flowers and leaves in a salad (I like the leaves in an egg sandwich too) and if you pickle the seeds you can use them in recipes instead of capers