The Crimson Sweet Watermelon is all Heirloom and Non-GMO. Their maturity takes around 85 days from seed. This is a round, huge watermelon that has very nice stripes on the outer rind and a super sweet red flesh. It will top the scales around 25 pounds. To our northern gardeners, if you transplant then use peat pots so not to disturb the roots. Crimson Sweet Watermelons are a great Heirloom garden seed that require regular feeding with lots of water. Give them plenty of space for the vines to spread. It's not uncommon to have 8 to 10 watermelons on one vine with most of the time 2 or 3. One pack of seeds will do for most folks; to our farmers market friends, get a half ounce packet of seeds for every market you do. Happy growing!!!