The seeds that we plant with high expectations, and often disappointment, may come from the sweepings off the seed room floor, packaged for resale by seed brokers. Economize on anything else, but never look for a bargain when buying seeds. Too often the package is worth more than the seeds. Do some research on the source of your seeds. Most insects prefer shadowy, well-protected places to make their nest.
Soil needs to partially dry out between watering.