Last year I visited the Chicago Botanical Gardens.  Had a great time and got some new images.  The whole time I used my backgrounds behind the flowers and shot every image at f/32, never changed my f/stop one time.  I wanted everything to be in focus and f/32 gives me maximum depth of field, getting the subjects all in focus. You will get some slight diffraction shooting at f/32, but the sharpening tools in post processing will correct that softness. I did some creative post processing on these images. Have more to process.