How much seed do I get to cover 600 square feet rather quickly? Or if it comes as plants, how many plants would I get? Thank you!
Spacing of plants should be 9 to 12 inches. Plant spread is approx 18".
You can generally order 'plugs' of the plants for planting in large areas.
Seeds can be directly sown into the soil but your coverage may not be even.
Follow seed sowing recommendations from the seed source.
Keep in mind that Snow On The Mountain can be invasive.
Here is a link with more information.