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Soursop Plant Seeds:
Guide to Storing, Sowing and Germination

Updated: July 8, 2023

The soursop plant, also known as Annona muricata, is a tropical fruit tree that is highly prized for its delicious and nutritious fruit. If you are lucky enough to have access to soursop seeds, you may be wondering how to store, sow, and germinate them to start your own soursop plant. In this guide, we will provide you with all the information you need to successfully grow soursop from seeds.

Storing Soursop Seeds

Before we dive into the process of sowing and germinating soursop seeds, it is important to understand how to properly store them. Soursop seeds are best stored in a cool and dry place, away from direct sunlight. The ideal temperature for seed storage is between 50-60°F (10-15°C).

To maximize the chances of successful germination, it is recommended to store fresh soursop seeds. Fresh seeds are those that have been recently harvested from ripe fruits. The viability of soursop seeds decreases over time, so it is best to use them within a few weeks of harvest.

If you don’t have immediate plans to sow the seeds, you can also store them in an airtight container in the refrigerator. This will help prolong their viability for a few months.

Sowing Soursop Seeds

Once you are ready to sow the soursop seeds, there are a few steps you need to follow:

  1. Seed Preparation: Before sowing, it is beneficial to scarify the seeds. Scarification involves gently nicking or scratching the outer coating of the seed to promote better water absorption and germination. You can use a small file or sandpaper to scarify the seeds. Be careful not to damage the inner seed.

  2. Seed Soaking: After scarification, soak the seeds in water for 24-48 hours. This will help to further soften the seed coat and improve germination rates.

  3. Seed Potting: Fill a seed tray or small pots with a well-draining potting mix. Soursop seeds prefer a slightly acidic soil with a pH range of 6.0-6.5. Plant the seeds about half an inch deep, and space them at least 2-3 inches apart to allow room for growth.

  4. Watering: After sowing, water the potting mix thoroughly until it is evenly moist but not waterlogged. Maintain this level of moisture throughout the germination process, ensuring that the seeds do not dry out.

  5. Temperature and Light: Soursop seeds require warm temperatures ranging from 75-85°F (24-29°C) for optimal germination. Place the seed tray or pots in a warm location where they can receive indirect sunlight. Avoid placing them in direct sunlight, as this can cause excessive drying of the potting mix.

Germinating Soursop Seeds

Germination of soursop seeds typically takes between 2-4 weeks, although it can sometimes take longer. Here are some tips to help promote successful germination:

  1. Maintain Moisture: Regularly check the moisture level of the potting mix and water as needed to keep it consistently moist. Be careful not to overwater, as this can lead to rotting of the seeds.

  2. Provide Indirect Light: Once the seeds have sprouted, move them to a location with bright, indirect light. This will help promote healthy growth without exposing the delicate seedlings to harsh sunlight.

  3. Transplanting Seedlings: When the seedlings have developed a few sets of true leaves and are sturdy enough to handle, they can be transplanted into larger pots or containers. Use a well-draining potting mix and provide them with adequate space for their roots to grow.

  4. Caring for Soursop Seedlings: As the seedlings continue to grow, ensure they receive regular watering and provide them with a balanced fertilizer every 4-6 weeks. Protect them from extreme temperature fluctuations and strong winds, as these can stress the young plants.

Conclusion

Growing soursop from seeds can be a rewarding experience that allows you to enjoy the sweet and tangy fruits of your labor. By following the steps outlined in this guide, you can successfully store, sow, and germinate soursop seeds, giving you the opportunity to cultivate your own soursop plant. Remember to be patient and provide the necessary care for your seedlings as they grow into healthy and productive trees. Happy gardening!