Some nasturtiums?

[GardeNerd]

Vfem, if you buy the annual seeds, you will never have to buy them again. The seeds are really easy to collect and save, as they are big and easy to locate. You will really enjoy these!

She is right! My daughter loves to "guerrilla garden" with them. There is an abandoned house at the end of the block where my daughter "plants them." She collects them at our house and disperses them down there. In the years we have heavy rainfall totals they have come up.