Grow with evidence, not guesswork
Grow healthier plants. Understand hydroponics.
Clear, source-led guides for choosing crops, managing water and nutrients, and diagnosing problems methodically.
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Crop library
Choose what you want to grow
Alstroemeria
Alstroemeria spp.Grow alstroemeria in hydroponic substrate with practical guidance on root temperature, flowering, nutrients, stem support and harvesting.
FlowersAnthurium
Anthurium scherzerianumGrow hydroponic anthurium indoors with practical guidance on light, temperature, nutrients, healthy roots and long-lasting flowers.
HerbsBasil
Ocimum basilicumLearn how to grow hydroponic basil indoors with practical advice on lighting, nutrients, pruning, harvesting and common growing problems.
Leafy greensBroccoli
Brassica oleracea var. italicaGrow hydroponic broccoli at home with a research-based nutrient profile and practical guidance on temperature, lighting, head formation, harvesting, and plant care.
Root vegetablesBulb Onion
Allium cepaGrow full-sized bulb onions hydroponically at home with practical guidance on day length, nutrients, bulb development, harvesting, and curing.
HerbsCoriander
Coriandrum sativumGrow coriander hydroponically at home with practical guidance on temperature, lighting, nutrients, harvesting and preventing early flowering.
Fruiting vegetablesCucumber
Cucumis sativusLearn how to grow hydroponic cucumbers indoors, from choosing varieties and growing conditions to nutrition, care and harvesting.
HerbsDill
Anethum graveolensGrow hydroponic dill indoors with practical guidance on lighting, nutrient solutions, harvesting, flowering and pest prevention.
Fruiting vegetablesEggplant
Solanum melongenaLearn how to grow hydroponic eggplant indoors, from choosing varieties and growing conditions to pollination, pruning, nutrition and harvesting.
Root vegetablesGarlic
Allium sativumGrow hydroponic garlic at home for fresh greens or mature bulbs, with practical guidance on cold treatment, lighting, nutrients, care, harvesting, and curing.
FlowersGerbera
GerberaGrow hydroponic gerbera indoors with practical guidance on light, temperature, nutrients, crown care and colourful flowers.
Fruiting vegetablesJalapeño Pepper
Capsicum annuumGrow fresh jalapeños hydroponically at home with practical guidance on varieties, systems, lighting, nutrition, indoor pollination and harvesting.
Leafy greensGreen Onions
Allium fistulosum and Allium cepaGrow fresh green onions at home without soil. Learn which onions to choose, how to feed them, when to harvest and how to keep the greens growing.
Leafy greensKale
Brassica oleracea var. sabellicaLearn how to grow hydroponic kale at home, with practical guidance on light, temperature, nutrient solutions, harvesting, pests, and diseases.
Leafy greensLettuce
Lactuca sativaGrow hydroponic lettuce indoors with practical guidance on growing conditions, nutrients, plant care, harvesting and common problems.
Fruiting vegetablesMelon
Cucumis meloLearn how to grow hydroponic melons indoors, from choosing varieties and growing conditions to hand-pollination, nutrition, support and harvesting.
MicrogreensMicrogreens
Various speciesGrow hydroponic microgreens at home with practical guidance on lighting, nutrient solutions, watering, harvesting and common problems.
Fruiting vegetablesMini Pumpkin
Cucurbita pepoGrow hydroponic mini pumpkins at home with practical advice on lighting, hand pollination, plant care, pests and an FAO nutrient reference.
HerbsMint
Mentha spp.Grow fresh mint at home without soil. Learn which mint to choose, how to feed it, when to harvest and how to keep your plants bushy and productive.
Leafy greensMustard Greens
Brassica junceaGrow fresh mustard greens hydroponically at home with practical guidance on lighting, temperature, nutrients, harvesting, pests, and diseases.
Leafy greensPak Choi
Brassica rapa subsp. chinensisGrow crisp pak choi at home with hydroponics. Learn about temperature, lighting, a tested nutrient profile, harvesting and common growing problems.
HerbsParsley
Petroselinum crispumGrow hydroponic parsley indoors with practical guidance on lighting, nutrient solutions, plant care and repeated leaf harvests.
Root vegetablesRadish
Raphanus sativusGrow hydroponic radishes at home with practical guidance on root space, temperature, lighting, nutrients, harvest timing, and common problems.
Leafy greensRocket Salad
Eruca sativaGrow rocket salad hydroponically at home with practical guidance on temperature, lighting, nutrients, harvesting, pests and preventing bolting.
FlowersRose
Rosa spp.Grow hydroponic roses indoors with practical guidance on lighting, nutrient solutions, pruning, flowering and pest prevention.
Leafy greensSpinach
Spinacia oleraceaGrow fresh hydroponic spinach at home with practical guidance on lighting, temperature, nutrients, harvesting and preventing bolting.
BerriesStrawberry
Fragaria Ă— ananassaGrow hydroponic strawberries indoors with practical guidance on varieties, lighting, pollination, nutrient solutions and harvesting.
Fruiting vegetablesSuperhot Peppers
Capsicum chinenseGrow Carolina Reaper, Trinidad Scorpion and other superhot peppers hydroponically at home with practical guidance for healthy growth and fruiting.
Fruiting vegetablesSweet Pepper
Capsicum annuumLearn how to grow hydroponic sweet peppers indoors, from choosing varieties and growing conditions to pollination, nutrition, care and harvesting.
Fruiting vegetablesTomato
Solanum lycopersicumLearn how to grow hydroponic tomatoes indoors, from choosing varieties and growing conditions to pollination, nutrition, care and harvesting.
Leafy greensWatercress
Nasturtium officinaleGrow watercress indoors with hydroponics and practical guidance on light, temperature, nutrient composition, harvesting and common pests.
Fruiting vegetablesZucchini
Cucurbita pepoLearn how to grow zucchini, or courgettes, hydroponically at home, including nutrition, pollination, pruning, and harvesting.
Fruiting vegetablesMini Watermelon
Citrullus lanatusGrow mini watermelon hydroponically at home in coco coir with practical guidance on lighting, nutrition, pollination, pruning, support and pest prevention.
Knowledge map
Build understanding, topic by topic
Hydroponic Basics
Start, monitor, and maintain a soilless growing system with confidence.
Explore topic →Growing Systems
Compare DWC, NFT, drip, ebb and flow, Kratky, and aeroponics.
Explore topic →Water Quality
Understand pH, EC, alkalinity, and solution temperature.
Explore topic →Plant Nutrition
Mix and manage balanced nutrient solutions.
Explore topic →Lighting
Use PPFD, DLI, photoperiod, and fixture placement well.
Explore topic →Equipment
Choose, calibrate, and maintain essential growing equipment.
Explore topic →Editor's pathway
Foundational guides
Your first hydroponic grow
A measured path from clean water and a simple system to a first leafy harvest.
guideMix a nutrient solution safely
A repeatable order of operations that avoids concentrated incompatibilities.
guideMeasure pH and EC without fooling yourself
A practical measurement routine for nutrient solutions and source water.
Plant health
A symptom is a clue—not a diagnosis.
Start with the pattern, check roots and measurements, then compare likely causes before changing treatment.
Use the diagnostic pathway →Our approach
Useful guidance with its limits included
We prioritize extension publications, primary research, and relevant technical documentation. Numerical guidance includes context where reliable evidence is available; cultivar, climate, system, and growth stage still matter.
Read our editorial policy →