Live to Plant

Sweet Mint Plant Seeds:
Guide to Storing, Sowing and Germination

Updated: July 12, 2023

Introduction

Sweet mint, also known as Mentha spicata or spearmint, is a popular herb that is widely used for culinary and medicinal purposes. It has a refreshing and invigorating aroma, making it a favorite addition to teas, cocktails, and dishes. Growing sweet mint at home is a rewarding experience, and one of the first steps in the process is to obtain and properly store the seeds. In this article, we will guide you through the process of storing, sowing, and germinating sweet mint plant seeds.

Storing Sweet Mint Seeds

Before we delve into the specifics of storing sweet mint seeds, it’s important to note that it’s always best to use fresh seeds whenever possible. Fresh seeds have a higher germination rate compared to older ones. However, if you have excess seeds or are planning ahead for future plantings, proper storage is crucial for maintaining seed viability.

To store sweet mint seeds effectively, follow these steps:

  1. Harvesting: Allow your sweet mint plants to flower and produce seeds. The flowers will eventually turn into small seed pods. Wait until these pods turn brown and dry out before harvesting the seeds. This usually occurs in late summer or early fall.

  2. Collecting: Gently remove the dried seed pods from the plant. Place them in a clean, dry container such as a paper bag or envelope.

  3. Drying: Leave the seed pods in a well-ventilated area for several days to ensure they are fully dry. This step is essential as moisture can cause the seeds to rot during storage.

  4. Separating: Once the seed pods are dry, gently crush them with your fingers or use a mortar and pestle to release the tiny sweet mint seeds from within.

  5. Cleaning: To remove any remaining chaff or debris from the seeds, place them in a fine-mesh sieve and gently shake or blow on them. This will help separate the seeds from unwanted materials.

  6. Storage: Transfer the cleaned seeds into an airtight container such as a glass jar or a seed packet. Store the container in a cool, dry place away from direct sunlight. A refrigerator or freezer can be a suitable storage option if you plan to store the seeds for an extended period.

By following these steps, you can ensure that your sweet mint seeds remain viable and ready for sowing when the time comes.

Sowing Sweet Mint Seeds

Now that you have properly stored sweet mint seeds, it’s time to sow them and start your own sweet mint garden. Here’s how you can sow sweet mint seeds:

  1. Choose a Container: Select a suitable container for sowing the seeds. It can be a seed tray, a small pot, or even a recycled container with drainage holes at the bottom.

  2. Soil Preparation: Fill the container with well-draining potting soil or seed-starting mix. Sweet mint prefers slightly acidic soil with a pH of 6.0 to 7.0.

  3. Sowing Depth: Sprinkle the sweet mint seeds on top of the soil surface evenly. Since sweet mint seeds are tiny, they require minimal covering. Lightly press them into the soil or gently mist them with water to help settle them in.

  4. Moisture: Keep the soil consistently moist but not waterlogged throughout the germination process. Water from the bottom by placing the container in a tray filled with water or water gently from above using a spray bottle.

  5. Germination Conditions: Sweet mint seeds require warmth and moisture to germinate successfully. Place the container in a warm location with temperatures between 60°F (15°C) and 70°F (21°C). You can also cover the container with a plastic dome or wrap it in a plastic bag to create a humid environment.

  6. Germination Time: Sweet mint seeds typically germinate within 7 to 14 days. However, it’s important to note that germination can be unpredictable and may take longer in some cases.

Germination Tips

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

  • Pre-soaking: Some gardeners find success by pre-soaking sweet mint seeds in water for a few hours before sowing. This helps soften the seed coat and speeds up germination.

  • Bottom Heat: Providing bottom heat using a heat mat or placing the container on top of a warm surface can promote faster and more consistent germination.

  • Light Requirements: Sweet mint seeds do not require light for germination. However, once the seedlings emerge, they will need bright, indirect light to grow properly. Place them near a sunny window or provide supplemental grow lights if needed.

Conclusion

Growing sweet mint from seeds is a fulfilling and enjoyable experience. By properly storing, sowing, and germinating sweet mint seeds, you can kickstart your own herb garden and have a fresh supply of aromatic mint leaves at your fingertips. Remember to provide the necessary care and attention throughout the growing process, and soon you’ll be able to enjoy the delightful flavors and scents of your homegrown sweet mint plants.