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Silver Dollar Plant Seeds:
Guide to Storing, Sowing and Germination

Updated: July 28, 2023

The silver dollar plant, also known as Lunaria annua, is a stunning biennial that adds beauty and charm to any garden. With its delicate purple flowers and unique silver seed pods, it is no wonder why many gardeners are eager to grow this plant from seed. In this article, we will guide you through the process of storing, sowing, and germinating silver dollar plant seeds.

Storing Silver Dollar Plant Seeds

Before we delve into the sowing and germination process, it is important to understand how to properly store silver dollar plant seeds. Proper storage will ensure that your seeds remain viable and ready for planting when the time comes.

  1. Harvesting Seeds: The best time to harvest silver dollar plant seeds is when the seed pods have fully dried on the plant. The pods will turn a beautiful silvery color and can be easily detached by gently shaking the plant.

  2. Drying Seeds: Once you have harvested the seed pods, it is important to dry them thoroughly before storing. Place the seed pods in a well-ventilated area out of direct sunlight for about two weeks. This will allow the pods to fully dry and ensure that the seeds inside are ready for storage.

  3. Seed Extraction: After the seed pods have dried, gently open them to extract the seeds. The seeds are flat and round with a brownish color. Be careful not to damage the seeds during extraction.

  4. Storage Containers: To store the silver dollar plant seeds, choose airtight containers such as glass jars or small plastic bags. Make sure the containers are clean and dry before adding the seeds.

  5. Labeling: It is essential to label your storage containers with the date of harvest and the plant variety. This will help you keep track of the seeds and ensure that you use the oldest seeds first.

  6. Ideal Storage Conditions: To maintain seed viability, store the containers in a cool, dark, and dry place. A temperature around 40°F (4°C) with low humidity is ideal for long-term seed storage.

By following these steps, you can store your silver dollar plant seeds properly and ensure their longevity.

Sowing Silver Dollar Plant Seeds

Once you are ready to sow your silver dollar plant seeds, there are a few important factors to consider to ensure successful germination.

  1. Timing: Silver dollar plant seeds can be sown either in spring or late summer. Sowing in spring will result in flowering plants for the following year, while sowing in late summer will produce plants that flower earlier the following spring.

  2. Soil Preparation: Prepare a well-draining soil mix by combining equal parts of potting soil and perlite or vermiculite. This will provide the necessary drainage for the seeds.

  3. Sowing Depth: Silver dollar plant seeds should be sown at a depth of approximately 1/4 inch (0.6 cm). Sprinkle the seeds evenly over the soil surface and lightly press them down.

  4. Watering: After sowing, water the soil gently to ensure it is moist but not soaked. Avoid overwatering, as this can lead to rotting of the seeds.

  5. Germination Temperature: Silver dollar plant seeds require a consistent temperature of around 60-65°F (15-18°C) for successful germination. You can use a heating mat or place the seed tray in a warm location to provide the ideal conditions.

  6. Germination Time: Under optimal conditions, silver dollar plant seeds will usually germinate within 10-20 days. Keep an eye on the seed tray and provide consistent moisture during this period.

Germination and Care

Once your silver dollar plant seeds have germinated and sprouted, it is important to provide proper care to ensure healthy growth.

  1. Transplanting: When the seedlings have developed their first true leaves, they can be transplanted into individual pots or into the garden. Choose a location with partial shade to full sun for optimal growth.

  2. Watering: Silver dollar plants prefer consistently moist soil, so regular watering is important. However, be careful not to overwater, as this can lead to root rot. Allow the soil to dry slightly between waterings.

  3. Fertilization: Apply a balanced liquid fertilizer every two weeks during the growing season to promote healthy growth and blooming.

  4. Pruning: If desired, you can prune silver dollar plants to maintain their shape and prevent them from becoming leggy. Pruning should be done in early spring before new growth begins.

  5. Seed Saving: As your silver dollar plants mature and produce new seed pods, you can harvest the seeds for future plantings. Simply follow the steps mentioned earlier for storing silver dollar plant seeds.

By following these guidelines, you can enjoy the beauty of silver dollar plants in your garden year after year.

In conclusion, growing silver dollar plants from seeds is a rewarding experience for any gardener. By properly storing, sowing, and caring for the seeds, you can enjoy the unique beauty of these plants in your own garden. So why not give it a try? Happy gardening!