Growing coriander at home in containers from seed is a rewarding and convenient way to have fresh herbs for your cooking. Here’s a detailed guide to help you grow coriander efficiently:
Seed Preparation and Germination:
- Splitting the Seeds:
- Coriander seeds are technically fruits containing two seeds. To improve germination, split the seeds gently by pressing them lightly with a slipper on a rough surface.
- Soaking:
- Soak the split seeds in water for 3-6 hours to initiate the germination process.
- Paper Towel Method:
- After soaking, place the seeds in moist paper towels, seal them in a plastic bag, and keep them in a warm place. Sprouting should occur in about three days.
Planting:
- Soil Preparation:
- Use well-draining soil rich in organic matter. Enhance the soil with compost or aged manure. Add sand for better drainage if the soil is heavy.
- Planting Depth and Spacing:
- Sow the seeds about 1/4 inch deep and space them 6 inches apart. Ensure the soil is kept moist until germination, which typically takes 7-10 days.
- Container Selection:
- Choose containers with drainage holes to prevent root rot. Trays or tubs work well for growing multiple rows of coriander.
- Location:
- Coriander thrives in temperatures between 17° to 27°C and needs at least 6 hours of sunlight daily. It can also grow in partial sun, and planting it under taller plants like tomatoes can help extend the growing season.
Care and Maintenance:
- Watering:
- Regular watering is essential, especially during dry periods. Avoid overwatering to prevent root rot. Coriander has deep taproots, so ensure the soil has good drainage.
- Fertilizing:
- Use a balanced fertilizer monthly, or incorporate compost into the soil before planting to provide natural nutrients.
- Mulching:
- Apply a layer of organic mulch around the plants to retain moisture and suppress weed growth.
Harvesting:
- Leaves:
- Start harvesting when the plants are about 6 inches tall. Regular harvesting of leaves encourages further growth. Snip off entire stems or pick individual leaves.
- Seeds:
- Wait for the plants to flower and develop seed heads. Harvest the seeds when they turn brown. Dry them before using or storing.
Storing:
- Leaves:
- Wrap coriander leaves in paper towels and store them in an airtight container in the fridge. Replace the paper towels if they get damp. For long-term storage, freezing is recommended.
- Seeds:
- Store dried seeds in an airtight container in a cool, dark place for up to a couple of years.
Pest Management and Problems:
- Pests: Keep an eye out for pests like slugs, snails, and aphids. Handpick slugs and snails at night and use environmentally-friendly methods for aphid control.
- Bolting: To prevent bolting (early flowering), ensure regular watering and plant bolt-resistant cultivars.
By following these steps, you’ll be able to enjoy a bountiful harvest of coriander from your home garden. Regular care and attention are key to ensuring success in growing coriander.