I keep my seeds stock current. There is no guarantee on the seed germination because seed germination doesn't depend on seeds quality only. they require user experience, perfect temperature, proper watering. so i am selling my seeds as is with no guarantee.
10+ Crimson Sweet
Watermelon Seeds, Very Sweet, NON-GMO, Heirloom.. Planting instructions:
In cool climates: watermelon seeds should be started indoors, but no sooner than a month before transplanting; Provide heat to keep the soil at least 80-85 degrees F.
in warm climates: direct sow watermelons as soon as the soil temperature reaches at least 75 degrees F, planting six seeds per hill with 6-8' of space in all directions. Thin to the strongest two or three plants as soon as the seedlings appear.