Answer: Old potting soil is fine to use. If your seeds have not yet germinated, it could be that you planted them too deeply or that the potting soil dried out before they could sprout. I'd carefully dig into the soil to see how the seed looks. If it is plump and near the soil surface it will sprout soon. If it is dried out, it didn't get enough water. some seeds require heat in order to sprout. Tomatoes are good examples of these types of seeds. If that's what you're growing, try placing the pots or trays in a warmer room or warmer place in the room. Best wishes with your seeds.
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