
Cultivate plants without soil, using mineral nutrient solutions in water.
Reviewed May 18, 2026
Getting started
Understand the key differences from soil growing
In hydroponics, you supply all nutrients directly in the water — the plant has no soil to buffer deficiencies or toxicities. Precise nutrient management is the main challenge. The payback is faster growth, higher yields, and year-round growing.
Build or buy a simple DWC (Deep Water Culture) system
An opaque container, a net pot lid, an air pump, air stone, and nutrient solution. Roots hang directly in oxygenated nutrient water. The simplest system, the fastest to set up, and the most forgiving for beginners.
Learn to measure and adjust pH and EC
pH controls nutrient availability — target 5.5–6.5 for most crops. EC (electrical conductivity) measures nutrient concentration — target 1.2–2.4 mS/cm for most vegetables. Test daily until you understand your system's drift pattern.
Advanced systems and contribution
Build a vertical or multi-tier growing system
Vertical NFT towers or stacked DWC systems maximise yield per floor area. The engineering challenge — even nutrient distribution, adequate light penetration, and access for maintenance — is non-trivial but achievable.
Grow a challenging or high-value crop successfully
Strawberries (require pollination and careful EC management), cannabis (where legal), or microgreens at commercial density. High-value crops test every aspect of environmental control and system precision.
Take a beginner Hydroponics course
A structured course is the fastest way past the awkward beginner stage. Browse highly-rated hydroponics classes for beginners.
Take the free quiz to rank the full catalog by your time, motivation, and setup — about five minutes.
5 stages · 20 milestones
Tick off milestones as you go — from first session to confident practitioner. Progress saves to your account so you can pick up where you left off.
Understand the key differences from soil growing
In hydroponics, you supply all nutrients directly in the water — the plant has no soil to buffer deficiencies or toxicities. Precise nutrient management is the main challenge. The payback is faster growth, higher yields, and year-round growing.
Build or buy a simple DWC (Deep Water Culture) system
An opaque container, a net pot lid, an air pump, air stone, and nutrient solution. Roots hang directly in oxygenated nutrient water. The simplest system, the fastest to set up, and the most forgiving for beginners.
Find gearLearn to measure and adjust pH and EC
pH controls nutrient availability — target 5.5–6.5 for most crops. EC (electrical conductivity) measures nutrient concentration — target 1.2–2.4 mS/cm for most vegetables. Test daily until you understand your system's drift pattern.
Find gearGrow your first crop of lettuce or herbs
Lettuce, basil, and spinach are the ideal first hydroponic crops — fast, forgiving, and visibly responsive to changes. A crop from seed to harvest in 3–4 weeks confirms the system is working before you invest more.
~$850
Core gear to get going. Estimates from curated picks; actual spend varies.
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