I bought Burpee Nasturtium Fordhook Favorites Mix Nasturtium seeds. Yesterday I planted a few, using the sowing instructions for depth and distance. I obviously hadn't looked closely enough at the package because today I noticed this message above the sowing instructions:
NOTE: To aid germination, rub seed with nail file.
I've planted these same seeds for a few years, and they've grown well, so I'm wondering about the importance of that advice. It makes sense that the seed might sprout more easily if the coating isn't too hard, so maybe that's the point. However, I'm afraid I might damage the seed by giving it a manicure!
If that is indeed important, how much rubbing is enough? Also, should I dig up those that I just planted or let them be?
A picture of the seeds still in the packet shows all different sizes and shapes. The textured outer shells are fairly hard, and the dark brown seeds look like they've fallen out of the shells. In the past, I've just planted whatever I've found in the packet and ended up with lots of healthy plants.
I have a feeling I'm overthinking this, but am just asking since I've never seen this before, and of course I want maximum germination success.