it's a little early to plant them directly outdoors. once the plants are like 4 weeks old they'll be pretty resistant to any cold spells or anything.
i'd start them indoors, seedlings don't have great survival rates outdoors, that's why mother nature provides tons of seeds just to make sure a few of them make it to maturity.
even vegging them indoors for 2 weeks will greatly enhance their survival chances.
but yeah if you've got plenty of seed go for it, just have some good quality soil for the seeds to root in.