I decided to give applique a try again.
Using this tutorial by Don't Look Now, I am using fusible interfacing and am planning to raw-edge applique the pieces to the background fabric. My machine only has a straight stitch, so I couldn't do a blanket or satin stitch if I wanted to. But, I like the organic effect of raw-edge applique and think I'm going to be happy with the finished product.
I plan to use this thread by Gutterman to match as closely as possible to the different colors.
Too bad my real garden needs tended to more than this one on this sunny spring day... ;-)