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Propeller Plant Seeds:
Guide to Storing, Sowing and Germination

Updated: July 19, 2023

Propeller plants, also known as Crassula falcata or airplane plants, are popular succulents with unique propeller-shaped leaves. These plants are native to South Africa and are loved for their easy care and striking foliage. If you’re a fan of propeller plants and want to grow them from seeds, this guide will provide you with all the information you need for successful storage, sowing, and germination.

Storing Propeller Plant Seeds

Storing propeller plant seeds properly is crucial for their long-term viability. Here are some steps to ensure their freshness and viability:

  1. Harvesting: Propeller plants produce small seed pods after flowering. Allow the pods to dry on the plant before harvesting them. The pods should turn brown and feel brittle when touched.

  2. Extraction: Gently twist or cut the dried seed pods to release the seeds. Be careful not to damage the seeds in the process.

  3. Cleaning: Remove any debris or chaff from the seeds by gently blowing on them or using a fine sieve.

  4. Drying: Spread the cleaned seeds out on a paper towel or a clean, dry surface. Allow them to air dry for a few days until they are completely dry. Ensure they are stored in a cool and dry place during this process.

  5. Storage containers: Once dry, transfer the seeds into an airtight container such as a small glass jar or a sealable plastic bag. Make sure the container is clean and dry before use.

  6. Labeling: It’s essential to label your container with the date of harvest and the plant variety to avoid confusion later on.

  7. Storage conditions: Store your propeller plant seeds in a cool, dark place such as a refrigerator or a cool basement. The ideal temperature for storage is between 35-45°F (2-7°C). Avoid exposing the seeds to moisture or extreme temperature fluctuations.

By following these steps, you can store propeller plant seeds for up to two years while maintaining their viability.

Sowing Propeller Plant Seeds

When the time is right, it’s time to sow your propeller plant seeds. Here’s how to go about it:

  1. Soil preparation: Propeller plants thrive in well-draining soil. Prepare a potting mix consisting of equal parts perlite, sand, and peat moss or use a commercial succulent potting mix. Fill small pots or seed trays with the prepared soil mix.

  2. Sowing depth: Propeller plant seeds are tiny, so they should be sown on the soil surface rather than buried. Gently press the seeds onto the soil without covering them.

  3. Watering: Using a spray bottle or a gentle watering can, moisten the soil without saturating it. It’s important not to overwater as excess moisture can lead to rotting.

  4. Covering: To create a humid environment that encourages germination, cover the pots or trays with a clear plastic lid or plastic wrap. This helps retain moisture and warmth around the seeds.

  5. Light and temperature: Place the covered pots or trays in a warm location with indirect sunlight. The ideal temperature for propeller plant seed germination is between 70-75°F (21-24°C). Avoid placing them in direct sunlight as it can lead to excessive heat and drying out of the soil.

  6. Germination time: Propeller plant seeds usually germinate within two to four weeks, but some varieties may take longer. Be patient and maintain consistent moisture levels during this period.

  7. Uncovering: Once the seeds have germinated and small seedlings emerge, remove the plastic covering to allow proper airflow and prevent damping-off disease.

Germination Success Tips

To increase your chances of successful germination, consider the following additional tips:

  • Bottom heat: Providing bottom heat using a propagation mat or placing the pots on a warm surface can help stimulate germination.

  • Watering: Water the seeds from the bottom by placing the pots in a tray with water. This prevents waterlogging and reduces the risk of fungal diseases.

  • Lighting: After uncovering the seedlings, ensure they receive bright, indirect sunlight for healthy growth. If natural light is insufficient, you can use fluorescent or grow lights placed a few inches above the plants.

  • Transplanting: When the seedlings have grown several true leaves and are large enough to handle, they can be transplanted into individual pots with well-draining soil.

By following these tips, you can increase your chances of successfully germinating propeller plant seeds and growing healthy plants.

Conclusion

Growing propeller plants from seeds can be a rewarding experience for any plant enthusiast. By properly storing, sowing, and providing optimal conditions for germination, you can enjoy the beauty of these unique succulents right from their earliest stage. Remember to be patient, as some varieties may take longer to germinate than others. With care and attention, your propeller plant seeds will soon sprout into beautiful plants that will bring joy to your indoor or outdoor spaces.