Mint

There are some wonderful mint plants growing in our back yard; here is a cluster of them:

There are also some others in a pot; Dad collected some stray, weak mint plants growing near the above bunch, placed them in water to give them a better chance to develop their roots, and once they had  grown a substantial root base he placed them in one of the many plant pots in our back yard. As a result, those mints have survived, although they are not yet as strong as the flowers in this image.