Growing up in the Midwest, radish sandwiches were popular directly from the garden. Meaning the radishes came from the garden not the sandwiches. We ate ours on buttered homemade white bread, with red & white radishes cut like the picture & a sprinkling of salt. I have seen these featured in Alsace Lorraine cookbooks.
Herbs are the "flowers."
Vintage cotton tablecloths wash like iron so don't be afraid to bring them outside. Spot before washing and/or I put a little bleach in the water.
Any tablescape you can do inside, you can do outside. No reason to hold back. Don't wait for a set of chairs or a set of dishes to do this. Mismatch works!