From Seed to Flavourful Harvest
Cilantro, also known as coriander, is a popular herb in hydroponic systems, prized for its distinctive flavour and quick growth. This guide will take you through the process of cultivating Hydroponic Cilantro in a soilless environment.
Seed Germination
- Soak cilantro seeds for 24 hours to improve germination rates.
- Use biodegradable seed starter plugs or rockwool cubes as a growing medium.
- Maintain temperature around 70°F (21°C) for optimal germination.
- Expect seedlings to emerge in 7-10 days.
Seedling Care
- Provide 14-16 hours of grow lights daily for healthy seedling development.
- Keep humidity levels around 50-60% to prevent damping off.
- Begin feeding with a dilute nutrient solution when true leaves appear.
- Purchase quality seeds here
Transplanting to Hydroponic System
- When seedlings have 2-3 sets of true leaves, transfer them to your hydroponic setup.
- Nutrient film technique (NFT) and deep water culture (DWC) systems work well for cilantro.
Nutrient Solution Management
- Use a balanced hydroponic fertilizer with an EC of 1.0-1.4 mS/cm.
- Maintain pH between 5.8-6.3 for optimal nutrient uptake.
- Change the nutrient solution weekly to ensure fresh nutrients.
Popular Grow Tent Sizes and Their Applications
Grow tents come in various dimensions to suit different needs:
- 24x24x60: Perfect for 4-6 medium-sized plants or multiple smaller varieties
- 24x48x60inch: Suitable for 6-8 plants, depending on size and growing method
- 33x33x72inch: Great for larger crops or mixed plant varieties
- 48x48x10inch: Commercial-grade size for serious home growers or small-scale operations
Remember, height is crucial. Most plants need at least 5-6 feet of vertical space for optimal growth and equipment placement.
Light and Environmental Control
- Provide 12-14 hours of light using LED grow lights or fluorescent lamps.
- Keep temperature between 65-75°F (18-24°C) for best growth.
- Ensure good air circulation to prevent fungal diseases and bolting.
Pruning and Harvesting
- Begin harvesting when plants reach 6 inches tall.
- Cut outer leaves first, leaving the centre to continue growing.
- Harvest up to 1/3 of the plant at a time for continuous production.
Pest and Disease Management
- Monitor for common hydroponic pests like aphids and whiteflies.
- Maintain proper spacing and air circulation to prevent powdery mildew.
- Consider using neem oil or insecticidal soap for organic pest control.
Preventing Bolting
- Keep temperatures cool to delay bolting (flowering).
- Harvest regularly to encourage leafy growth over seed production.
- Consider succession planting for a continuous cilantro supply.
Flavour Enhancement
- Slightly reduce nutrient strength before harvest to intensify flavour.
- Harvest in the morning when essential oils are most concentrated.
Seed Saving
- Allow some plants to bolt for coriander seed production.
- Harvest seeds when they turn brown and easily fall off the plant.
Hydroponic System Maintenance
- Clean and sterilize your hydroponic system between crop cycles.
- Use hydrogen peroxide to keep the root zone oxygenated and disease-free.
Companion Planting in Hydroponics
- Grow cilantro alongside lettuce or spinach for efficient space utilization.
- Avoid planting near fennel, which may inhibit cilantro growth.
By following these guidelines, you can successfully grow fresh, flavourful cilantro in your hydroponic garden year-round. Remember, cilantro has a relatively short life cycle, so continuous planting is key to maintaining a steady supply.