How to Germinate Lemon Grass Seeds

Germinating lemongrass seeds can be a bit more challenging compared to some other herbs, but with the right approach and care, you can successfully grow lemongrass from seed. Here’s a step-by-step guide on how to germinate lemongrass seeds:

Materials Needed

• Lemongrass seeds
• Seed-starting trays or small pots
• Seed-starting mix or potting soil
• Spray bottle or gentle watering can
• Plastic bag or clear plastic dome
• Warm location with indirect sunlight or a grow light

Step-by-Step Instructions

1. Soak the Seeds (Optional)
   • Some gardeners find that soaking lemongrass seeds in warm water for about 24 hours before planting can help improve germination rates. This process can help soften the seed coat and promote faster germination.
2. Prepare the Soil
   • Fill your seed-starting trays or small pots with a well-draining seed-starting mix. A good seed-starting mix typically contains peat moss, vermiculite, and perlite, which helps with moisture retention and drainage.
3. Plant the Seeds
   • Sprinkle the lemongrass seeds evenly on the surface of the soil. Since lemongrass seeds are very small, you don’t need to plant them deeply. Lightly press the seeds into the soil or cover them with a thin layer of soil (about 1/8 inch).
4. Water the Seeds
   • Use a spray bottle or a gentle watering can to moisten the soil. Be careful not to overwater, as too much moisture can cause the seeds to rot. The soil should be consistently moist but not waterlogged.
5. Create a Humid Environment
   • Cover the seed tray or pots with a plastic bag or a clear plastic dome to create a mini greenhouse effect. This helps retain moisture and creates a warm environment that is conducive to germination.
6. Provide Warmth and Light
   • Place the covered seed tray or pots in a warm location with indirect sunlight. Lemongrass seeds germinate best at temperatures between 70-85°F (21-29°C). If you don’t have a sufficiently warm spot, consider using a seedling heat mat to provide consistent warmth.
   • Once the seeds start to germinate, which can take anywhere from 10 to 21 days, remove the plastic cover to prevent mold growth and provide good air circulation.
7. Maintain Moisture and Light
   • Continue to keep the soil moist but not waterlogged. Ensure the seedlings receive plenty of light — at least 12-16 hours of indirect sunlight or use a grow light to supplement natural light.
8. Transplanting the Seedlings
   • When the seedlings have developed at least two sets of true leaves and are strong enough to handle, they are ready to be transplanted.
   • Carefully transplant them into larger pots or directly into your garden space, ensuring they are spaced about 12-18 inches apart to allow for growth.

Tips

• Patience is Key: Lemongrass seeds can take several weeks to germinate, so be patient and maintain the right conditions.
• Thinning: Once the seedlings have grown a bit, thin them out to ensure air circulation and to prevent overcrowding.
• Feeding: After transplanting, you can start feeding your lemongrass plants with a balanced, water-soluble fertilizer to promote healthy growth.

By following these steps and ensuring proper care, you should be able to successfully germinate lemongrass seeds and enjoy a healthy crop of this fragrant and versatile herb.