Hydroponics

Hydroponics is the science of growing plants without soil, instead delivering all water, oxygen, and nutrients directly to the root zone in dissolved form. Cannabis is exceptionally well-suited to hydroponic cultivation because the plant's rapid growth rate benefits from immediate nutrient access without the buffering delays of soil microbiology. Major hydroponic methods used in cannabis: (1) DWC (Deep Water Culture) — roots suspended directly in oxygenated nutrient solution in a bucket or reservoir, simplest and most popular for home growers; (2) RDWC (Recirculating DWC) — multiple DWC buckets connected to a central reservoir for easier nutrient management; (3) Ebb and flow / flood and drain — pots periodically flooded with nutrient solution then drained, popular for sea-of-green setups; (4) Drip systems — nutrient solution dripped onto growing medium continuously or on schedule, common in commercial coco-coir grows; (5) NFT (Nutrient Film Technique) — thin film of solution flowing past roots in horizontal channels; (6) Aeroponics — roots suspended in air and misted with nutrient solution, fastest growth rates but highest equipment failure risk. Advantages: faster vegetative growth (3-4 week veg vs 4-6 weeks soil), higher yields per plant, precise nutrient control, no soil pests (gnats, spider mites breed less in clean hydro environments), and suitability for vertical farming. Disadvantages: equipment cost, requires constant monitoring of pH/EC/temperature, nutrient solution must be replaced every 1-2 weeks, system failures (pump failure, root rot, power outage) can kill entire crops within 24 hours. Hydro cannabis often shows distinct terpene profiles — many growers report less complex flavor compared to soil-grown.