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Lavender Plant Seeds:
Guide to Storing, Sowing and Germination

Updated: July 16, 2023

Lavender plants are beloved for their beautiful flowers, aromatic fragrance, and versatility in the garden. Many gardeners choose to grow lavender from seeds, as it allows them to have a wider variety of lavender species and cultivars to choose from. In this guide, we will explore the process of storing, sowing, and germinating lavender plant seeds, ensuring a successful and thriving lavender garden.

Storing Lavender Plant Seeds

Before sowing lavender seeds, it is essential to properly store them. Freshly harvested seeds from your own plants or purchased from a reputable seed supplier can be used for sowing immediately. However, if you have leftover seeds or plan to collect them from your garden, proper storage is crucial to maintain their viability.

To store lavender seeds, follow these steps:

  1. Dry the Seeds: Allow the seeds to dry completely before storing them. Spread them out on a clean paper towel or a drying rack for about one week in a warm and well-ventilated area. Make sure they are completely dry before proceeding.

  2. Clean the Seeds: Remove any debris or chaff from the seeds by gently rubbing them between your fingers or using a small sieve. This step ensures that you are storing only the pure seeds without any contaminants.

  3. Choose the Storage Container: Select an airtight container for seed storage. Small glass jars or plastic containers with tight-fitting lids work well. Make sure the container is clean and dry before use.

  4. Label and Date: Label each container with the lavender variety or species, as well as the date of collection or purchase. This information will help you keep track of the seed’s age and identity.

  5. Store in a Cool, Dark Place: Store the sealed containers in a cool (around 40°F/5°C), dark, and dry place. A refrigerator or a cool basement are ideal options. Avoid exposing the seeds to direct sunlight or temperature fluctuations, as these can reduce their viability.

By following these steps, you can store lavender seeds for up to three years while maintaining their germination rate.

Sowing Lavender Seeds

Once you are ready to sow your lavender seeds, it is important to choose the right time and method for sowing. Lavender seeds need specific conditions to germinate successfully.

Timing

Lavender seeds should be sown in early spring, 6 to 10 weeks before the last expected frost date in your area. This timing allows the plants to establish before the summer heat arrives.

Seed Tray or Pots

Lavender seeds can be sown in seed trays or individual pots. Here’s how to do it:

  1. Prepare the Container: Fill the seed tray or pots with a well-draining seed-starting mix. Moisten the mix with water until it is evenly damp but not soaking wet.

  2. Sow the Seeds: Sprinkle the lavender seeds thinly and evenly over the surface of the soil. Do not bury them deeply; lavender seeds require light to germinate. Gently press them into the soil without covering them completely.

  3. Mist with Water: Use a spray bottle to mist the seeds and soil lightly. This helps settle the seeds and ensures good soil-to-seed contact.

  4. Covering (Optional): If desired, cover the tray or pots with a clear plastic dome or a plastic wrap to create a mini greenhouse effect. This helps retain moisture and warmth, promoting germination.

  5. Provide Adequate Light: Place the tray or pots in a well-lit location, preferably near a south-facing window or under grow lights. Lavender plants require at least 6 hours of direct sunlight each day for optimal growth.

  6. Maintain Moisture: Check the moisture level regularly and mist the soil if it starts to dry out. Avoid overwatering, as excessive moisture can cause seed rot or fungal diseases.

By following these steps, you will give your lavender seeds the best chance of germination and healthy growth.

Germinating Lavender Seeds

Germinating lavender seeds may take some patience and care. Lavender seeds typically take 14 to 21 days to germinate, but some varieties may take longer. Follow these guidelines to ensure successful germination:

  1. Maintain Optimal Temperature: Lavender seeds require a consistent temperature of around 70°F (21°C) for germination. Consider using a seedling heat mat to provide the necessary warmth if your ambient temperatures are cooler.

  2. Provide Air Circulation: Good air circulation is crucial to prevent damping-off disease and promote healthy seedlings. Use a small fan on low speed or open a nearby window to ensure proper air movement.

  3. Transplanting Seedlings: Once the lavender seedlings have developed their second set of true leaves, they can be transplanted into individual pots or containers. Choose a well-draining soil mixture and place the seedling at the same depth as it was in the seed tray.

  4. Harden-off Before Planting Outdoors: Before planting your lavender seedlings outdoors, gradually expose them to outdoor conditions over the course of a week or two. This process, known as hardening-off, helps acclimate the plants to the sun, wind, and temperature variations.

By following these guidelines, you can successfully germinate lavender seeds and grow healthy lavender plants for your garden or landscape.

In conclusion, growing lavender from seeds can be a rewarding endeavor. By properly storing the seeds, sowing them at the right time and in suitable conditions, and providing adequate care during germination, you can enjoy the beauty and benefits of lavender plants in your garden. So go ahead, explore the wonderful world of lavender varieties and start sowing those seeds for a fragrant and stunning lavender garden.