Wildflowers

Hey all,

Today I sowed some wild flower seeds into a 50cm pot, and some Phacelia tanacetifolia into a 35cm pot.

I was unsure how many seeds I should sow, the entire packet of Wildflower covers 3 square meters, and the entire packet of Phacelia is 15 square meters

If I put to many wildflower seeds into the pot will it have a negative effect? is it better to sow to many rather than not enough and end up with gaps?

Thanks in advance
Adam