Fill seed trays with seed planting mix and dampen the mix with water.
Place seeds on top of the seed planting mix and cover them lightly with about 1/4 inch of seed planting mix.
Place the toothpicks into the seed planting mix so they stand up. Wrap the seed trays in the clear plastic bag and poke a few small holes in the bag to provide aeration. Place the seed trays in indirect light.
Water the seed trays by submerging the bottom of the trays in water for three to five minutes.
Remove the plastic bag once the bromeliad sprouts are 3 inches tall. Place the seed tray in partial light.