Read the packaging on the seeds you are planting to see if additional steps, such as soaking or chilling, need to be taken before they are planted. Check the Old Farmer’s Almanac for growing dates specific for your region.
If your cell trays do not have drainage holes at the bottom, use a knife to poke holes in the bottom of each cell.
A baking pan is an alternative that you may already have in your home. [5] X Research source
Potting soil can be used, but it may be more coarse and the seeds may not grow as well as they would in a fine seed mix. [7] X Trustworthy Source Michigan State University Extension Extension program of Michigan State University focused on community outreach, education, and engagement Go to source
Alternatively, you can run a germination test by wrapping at least 10 seeds in a damp paper towel. Keep the paper towel in a resealable plastic bag in a warm place for 10 days. Check the seeds to see if they’ve germinated or sprouted. If 5 or more sprout, the rest of the seeds should be viable.
Some seeds may need to be set shallower or deeper, so follow the instructions on the seed packages for each plant.
Plant 4 seeds if they are small. This gives more chances for them to grow. If you’re working with small seeds, pour the seeds into the crease of a folded piece of paper and use a pencil to push the seeds into the hole. [12] X Research source
Using toothpicks and masking tape is an easy alternative for garden labels that you can make at home.
You can also purchase a humidity dome from a gardening store for the same effect. If the dome has an air vent, keep it open for air flow.
Fill the tray back to 1⁄2 inch (13 mm) of water when levels are below 1⁄8 inch (3. 2 mm) deep. If you overfill the tray, the roots of your seedling may become waterlogged and develop rot.
Soil temperature can be measured with a soil thermometer placed at the same depth as the seeds.
Turn your tray 180° every other day so your seedlings do not grow crooked. You can also keep seedlings under grow lamps so the plants will grow evenly.