It's been a wet, cool spring here in the Portland, Oregon area. That's good news if you're growing fruit trees, cabbages, beets, and lettuce. Not so good for growing hay (first decent cuttings probably occurred in the past couple days) or sweet corn.
To ensure plenty of time to fully ripen sweet corn in the Willamette Valley, us garderners are often quoting the old saw "Knee-high by the 4th of July"(*). If your plants aren't knee-high, then the odds of a successful crop are low. I've often wondered if other regions have the same rule of thumb -- or is that a rule of knee?
I'm happy to report that despite late plantings, the sweet corn is pretty close to knee-high. Certainly not much further behind that previous years.
(*) Owing to modern faster-growing hybrid varieties of sweet corn, we can now plant later and still have plenty of time to get a crop. The drawback to the fast growing varieties is either size or taste... so I lose size in favor of maintaining decent taste.