Fenugreek
Trigonella foenum-graecum
Also known asMethi · Helba · Hulba · Greek hay · Bird's foot
Environment
The bounded range this crop tolerates.
Climate and zones
- USDA zones
- 6–11 (winter low around -23°C)
- Frost
- tolerates light frost
- Season
- cool (spring/fall)
Growing systems
Root mass: light.
Growing media
| Medium | pH effect | Retention | Bacterial surface |
|---|---|---|---|
| Rockwool (Mineral wool) | alkaline until pre-soaked | very high | low |
| Coco coir (Coconut coir) | slightly acidic | high | moderate |
| Perlite (Expanded volcanic glass) | neutral / inert | very low | low |
| Soil-based mix (Potting soil) | varies | high | high |
Nutrient demand by stage
NPK ratios are relative weights. EC targets shift through the plant's life.
| Stage | N | P | K | EC (mS/cm) |
|---|---|---|---|---|
| seedling | 1 | 1 | 1 | 0.8 |
| vegetative | 2 | 1 | 2 | 1.4 |
Aquaponics suitability
Compatible
Fish waste provides enough nitrogen for healthy growth. Supplemental potassium, calcium, and iron may still be needed depending on fish stocking density.
Care notes
A fast, dual-purpose hydroponic crop providing both fresh leaves (methi greens) and, if allowed to mature, seeds. EC 1.0-2.0 mS/cm. pH 6.0-7.5. Temperature: 15–25°C (cool to moderate; tolerates some heat but bolts faster in warm conditions). Moderate light (DLI 12-18 mol/m2/day). NFT, DWC, or media bed systems work. From seed to leaf harvest (methi greens): 3-4 weeks as microgreens, 5-6 weeks as full-sized leaves. For seed production: 90-120 days to pod maturity. The fresh leaves have a milder, more herbal version of the seed's aromatic quality. For kasuri methi (dried fenugreek leaves), harvest leaves, rinse, and dry in a dehydrator at 35–40°C; the dried leaves store for months and are used as a finishing herb in Indian curries. Succession plant every 3 weeks for continuous methi greens. The plants fix nitrogen (like other legumes) but may need supplemental N in hydroponic media without Rhizobium. Fenugreek is pest-resistant and trouble-free. For South Asian cooking enthusiasts, fresh methi greens are one of the most valuable personal-use herbs: expensive at Indian grocers, unavailable at regular supermarkets, and easy to grow.