Select the best mulch for the job. Pine needles and weed-free straw are both economical forms of mulch and work well for areas where heavy winds are not an issue. If the planting area is subject to windy conditions and hungry animals, opt for a coarse gravel.
Spread the mulch over the planting area, gently laying it in place without disturbing the seeds, using gloved hands. A single layer of mulch, usually 1/4 to 1/2 inches, is all that is necessary. Mulching too heavily may make it difficult for some sprouts to poke through. If you can still see soil beneath the mulch layer, the application is appropriate.
Leave the mulch in place for the duration of the germination process -- there is no need to move the mulch. Sprouts will find their way through the mulch naturally. Once the plants begin to grow, leaving the mulch in place suppresses weeds and improves water retention in the soil.