Crimson Sweet Watermelons. Sweet flesh with a high sugar content. This watermelon is one of the most popular within the species.Click to see full answer. Considering this, what is the name of the sweetest watermelon?Saving The Sweetest Watermelon The South Has Ever Known. Nat Bradford holds a Bradford watermelon, known for its sweet, fragrant red flesh. The melon was created by Bradford’s forefathers around 1840 and was once one of the most important and coveted melons of the South. what kind of watermelon is the best? Below are a few of the best watermelon varieties to plant. White Wonder. Picnic Watermelon Varieties. Crimson Sweet. Harmony. Sultan. Seedless Watermelon Varieties. Burpee Seedless Hybrid. One of the few seedless varieties available to home growers. Want to learn more about growing watermelons? See these websites: Beside above, how do you pick a sweet watermelon? Pick it up: Big or small, the watermelon should feel heavy for its size. Look for the yellow spot: Watermelons develop a splotch where they rest on the ground. When this splotch is creamy yellow, it’s ripe. Give it a thump: Tap the underbelly of the watermelon.Which watermelon is sweeter round or oblong?An oval (elongated) shaped watermelon will be more watery while a round shaped watermelon will be sweeter. Webbing is the brown, course web looking materiel. The more pollination the sweeter the watermelon.