Fill containers and gently tamp soil mix down. As a rule of thumb, plant seeds at a depth 2-3 times their diameter. Planting Very fine seeds such as petunia or begonia should be sown on the surface. Moisten the surface with a fine mist. Large-seeded vegetables that resent transplanting, such as cucumber, cantaloupe and watermelon should be planted directly into peat pots.
Some seeds have specific light or dark requirements for germination.
Sow seeds that require light such as dill, lettuce and impatiens on top of the soil. Cover seeds of cabbage, cauliflower, parsley and spinach for germination. Cover containers with clear plastic bags and place in a warm location for germination. DON'T place covered containers in direct sunlight. Check daily for germination.