I see that cinnamon is supposed to have anti fungal properties, and is recommended for rooting new plants.
Picked up a bottle at the dollar store and sprinkled it over some newly planted seeds. We will see what happens.
This is a planting of kale and chard, by the way. In January in Houston I plant the cold-hardy fast-growers (can set them outside within three weeks because they’ll survive a frost) and also planting the slower-starting warm-season veggies, like eggplant, peppers, and tomato.