The seeds and smaller plants of nasturtium may be found in a number of online and offline gardening outlets. Plants and seeds may be purchased for very little money. A package of 25 seeds normally costs less than a buck at most seed shops. Plants often cost little more than $5 each. If your local garden shop does not carry them, you can always look them up online. More information on the seeds and where to find and buy them may be found on a variety of gardening websites.