Quick Answer
To rejuvenate old seeds, you can try cold stratification, which involves storing seeds in a refrigerator for 2-4 weeks to stimulate germination, or use a combination of water and oxygen to help revive dormant seeds.
Cold Stratification Method
Cold stratification is a simple and effective way to rejuvenate old seeds. Start by placing the seeds in a sealed plastic bag with a damp paper towel or cloth, and then store the bag in the refrigerator at a consistent temperature of around 35-40°F (2-4°C) for 2-4 weeks. This simulates the natural cold winter period, which helps to break seed dormancy. After the stratification period, remove the seeds from the refrigerator and plant them in well-draining soil.
Water and Oxygen Revival Technique
Another method to rejuvenate old seeds involves using a combination of water and oxygen. Soak the seeds in a bowl of water for 24 hours, and then transfer them to a jar or container filled with a mixture of 70-80% water and 20-30% oxygenated air. Seal the jar and store it in a warm location, such as a sunny windowsill or under grow lights, for 1-2 weeks. This helps to rehydrate the seeds and stimulate germination. After the treatment, plant the seeds in well-draining soil.
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