Grow food without soil — and without anything that breaks while you sleep.
Quiet Garden is a curated field guide to hydroponics: the best sources, techniques, products and plants on the open web, each with an honest note on why it's worth your time. Organised by one question — what keeps growing when things fail?
The Kratky method
Fill a reservoir once, plant, walk away. The passive technique behind every indestructible hydroponic garden — no pumps, no power, nothing to fail. Six curated links, from the original University of Hawaiʻi paper to the best Australian build series.
Read the entry →Current highlights
- Hoocho The Australian passive-hydro channel — start here if you're new and local.
- Lettuce The right first crop — near year-round in Canberra, forgiving everywhere.
- Bluelab Truncheon EC meter The EC meter that outlives everything else on the bench. AU-stocked.
Recently added
Hoocho
Australian YouTube channel. Best-in-class on low-cost passive systems, bucket Kratky and nutrient DIY. Local suppliers, local prices.
Cornell CEA
Controlled Environment Agriculture program. Peer-reviewed crop recipes and lighting research — the reference layer behind the hobby content.
UF/IFAS Extension
University of Florida extension publications. Free, rigorous, practical — the best written fundamentals on nutrient management and greenhouse crops.
ESP32 + EC/pH sensor rig
DIY reservoir monitoring for under $50. Convenience layer — design it to fail without taking the crop with it. Links to the three proven builds.
Cherry tomato
The step up from leafy greens. Fruiting crop, bigger nutrient demands, needs support and steady EC. Best guides for dwarf indeterminate varieties.
Keep on Growing
Long-running channel on simple deep-water culture and Kratky at household scale. Patient, methodical, unsponsored.
r/hydro
The active hydroponics subreddit. Signal-to-noise is uneven; best for troubleshooting photos and honest product experiences, not fundamentals.
Basil
Fast, forgiving, high-value per litre of reservoir. Frost-tender — indoor or season-limited in Canberra. Links to the best pruning-for-yield guides.
The Kratky method
Passive, non-circulating hydroponics. No pumps, no power, no moving parts — the baseline system that fails last.
Lettuce
The canonical first hydroponic crop. Thrives in passive systems; Canberra season notes and the three best growing guides.
Aeroponics (high-pressure)
Misted bare roots — fastest growth, least forgiveness. Minutes of pump failure can cost the crop. Solar/battery backup is not optional off-grid.
Deep water culture (DWC)
Roots in an aerated reservoir. One air pump between you and Kratky — more oxygen, faster growth, one new failure mode.
Nutrient film technique (NFT)
Thin recirculating film over bare roots. Efficient and scalable, but pump-dependent — a power cut is a crop-loss event. Know the failure modes first.
AutoPot self-watering system
Gravity-fed valve system — powered-system convenience with Tier 1 reliability. Australian distributor with local spare parts.
Bluelab Truncheon EC meter
The durable-workhorse conductivity meter. NZ-made, widely stocked in Australia; links to the two independent long-term reviews worth reading.