I plant nasturtiums every year from seed and they sprout and start to grow but then suddenly they look like something is eating on them and then their leaves turn light yellow and looks like something is making paths or tunnels inside the leaves. I live in zone 5, so I plant the seed directly in the ground. I have tried planting them for many years but never have any turn out. Any suggestions?
Certified GKH Gardening Expert
This sounds like leafminer damage. Leafminers do commonly attack nasturtiums. See these articles for advice: