No effort required...

...because these nasturtiums self-seed every year. The lazy gardener's ideal flower - and edible too, so they are allowed to grow in my vegetable garden along with the pot marigold.
Just got a few jobs done at home and in the garden today. Lots of insects around at the moment , so I had a little play with the macro. Here's a link to my photostream if you'd like to swing by.