After looking at your website, I have numerous questions. As a lifelong resident of Central Virginia, I'm wondering where you get your planting dates from!?!?!?! Our "average" last frost date here is April 15th (and has been for decades). "Average" means, of course, that they have averaged together last frosts before and after that date. For the past three years, we've even had hard frosts the end of April. The only thing I'd plant out April 6th are, oh, peas or something. Peppers which are native to Central American, near the equator, are more prone to fungal problems in cool spring weather so I never put my transplants out until after May 1. Only if I had row covers would I go earlier. Things like string beans or corn which LOATHE cool soil I never even direct plant until mid-May.
In your section on fall planting, you include when to plant warm season veggies for fall crops! Can't understand that one at all. Plant a watermelon out July 17th and you MIGHT get one or two before the first fall frost in October, but why not plant them earlier when you can enjoy a nice ice cold watermelon when it's hot--not when you've had to pull out your winter sweaters because night temps are dipping into the 40's (which watermelons HATE, anyway?)
