How Long Does Hydroponic Lettuce Take to Grow? Timelines by System
Quick Answer: Hydroponic lettuce typically takes 4 to 6 weeks from seed to harvest under optimal conditions. NFT and vertical tower systems are the fastest, often delivering harvestable lettuce in just 28 days. What Most Guides Miss Water Temperature is Crucial: Maintaining optimal water temperature (65-72°F) is vital to keep dissolved oxygen high. Nutrient Refresh: Simply adding water for evaporation isn’t enough; change the solution fully every 1-2 weeks. Light Spectrum: Balanced blue and red spectrums promote robust leaf development. Table of Contents Growth Stages & Key Milestones Harvest Timelines by System Factors That Affect Growth Time Tips to Speed Up Growth Frequently Asked Questions Home > Hydroponic > How…