Loosen and dampen the potting mix before placing it in seed-starting trays or containers. Aim for a consistency of a wrung-out sponge moist but not dripping.
Fill your seed-starting trays or containers about two-thirds full with the pre-dampened potting mix. Gently tap the container to help the mix settle, keeping it fluffy and aerated.
Lightly firm the top of the potting mix using your hand or a small board. Avoid packing it tightly to ensure it remains fluffy and well-aerated for the seeds.
Follow the instructions on the seed packet for any special requirements like pre-chilling or soaking. Some seeds need darkness to germinate, while others need light.
Check the seed packet for how much potting mix to cover the seeds with. Smaller seeds need less covering, and some, like lettuce, require light and should be barely covered.
Use popsicle sticks or plastic plant markers to label each type of seed with its name and the date sown. Insert labels near the edge of the container or tray for easy identification.
Cover the trays or containers with clear plastic to retain heat and moisture. Use plastic domes, bags, or cling wrap, ensuring optimal conditions for germination.
Remove the plastic cover as soon as seedlings emerge and place them in indirect light. Once they develop cotyledons, move the seedlings under a light source to promote growth.