I sowed my spinach straight into the warm September soil just to get ahead: three weeks later, what was missing from the row wasn’t the water
You watered faithfully for three weeks, but your spinach row stayed bare. The culprit isn’t your watering can—it’s soil temperature. Spinach seeds have a built-in thermal dormancy switch that shuts down germination when soil gets too warm, a survival mechanism thousands of years in the making.