The failure will be caused by a later bloom date because of later planting. Tomatoes blooming during hot temperatures have improper fruit set and reduced yields. The answer to this dilemma is to plant frost-susceptible crops according to the average first frost date, but remember to protect them if a late cool period occurs. Home gardeners can cover plants with cans, blankets, a cage-garbage bag system or boxes on frosty nights. As you can see, growing vegetables is not as easy as one might imagine.
Timing is a major key to success.
With proper timing, adapted varieties and a slight assist from Mother Nature, anyone can be a successful gardener.