To sprout watermelon seeds, start them indoors two to three weeks before you intend to transplant them into your garden.
Here's a breakdown:
- Timing: Start seeds indoors 2-3 weeks before the intended outdoor planting date. Avoid starting them too early, as large watermelon seedlings don't transplant well.
- Method: While the provided reference only alludes to when to start seeds, the typical seed starting method would apply. Generally, this involves planting the seeds in a seed-starting mix, keeping them moist, and providing warmth until germination.