Thanks for these insights!

I did get seedlings this season, and even planted them mid May. I thought I did pretty well not being late this year.

The only thing I can think of is not enough water; I had a thick layer (1-2 inch) of straw for mulch, and figured that would let me water less frequently. (Though I did do a finger check every few days).

Interesting you mention the cherries; it's the only plant with fruit even this late in the season. The others are assorted regular size varieties like Cherokee or other heirloomy types.

(edit: correction: it was mythrwy in the sibling comment that mentioned the cherry tomatoes! Thank you as well.)