- containers for starting seeds
- seed-starting soil mix
- plant labels
You can use pretty much anything you want for your containers. A cardboard egg carton makes an excellent biodegradable seed-starting flat, as do cut-down milk jugs, yogurt cups, nursery flats, and disposable aluminum pans. You can also purchase biodegradable peat pots that can be set in the ground when it's time to move seedlings outdoors. Whatever you choose, make sure the container has holes in the bottom for good drainage.
Seeds are a little fussier about what medium you start them in. Because seeds contain enough food to support the germinating seedlings in their first days, they don't need to start in an especially nutrient-rich medium. Use a sterile, weed-free seed-starting mix that holds water well. Good commercial seed-starting mixtures are available at nurseries and garden centers.
Many seedlings look alike, so labels are a good idea. Write the plant names on frozen-dessert sticks or other labels, and stick them in the soil. Keep your seed packages for reference.