More Seeds in the Ground

I had limited germination success with the spinach seed I planted two and a half weeks ago.  What did sprout has shriveled up and died, or has been eaten by some critter, or has somehow simply vanished from the garden.  In its place I've sown seeds for arugula, detroit dark red beets, and rainbow chard.  I'll try spinach again once I get some of the summer garden plants cleared out and those beds prepared.  I also sowed additional lettuce seed to fill in the rows where earlier plantings have failed.  More good greens for the fall! And just in time ... it's raining!