Properly frozen seeds successfully germinate and grow. Check the germination rate by placing several seeds in a plastic bag with a damp paper towel. Place the plastic bag in a warm area of the house or outdoors. Many types of seed will show germination after one week.
If the germination rate is below 50 percent, start with new seeds or plant what is available "doubled up" to ensure a better growth rate.
Seeds should be dry before placing them in the freezer for storage. Sealed containers, such as glass jars, work well to keep residual moisture from reaching the seeds. Paper packets allow moisture to enter the seeds while in storage.