Arrowhead vs Cattail
Both are Aquatic. Each axis is a percentile across all 538 crops — 80 means higher than four-fifths of the table. Where an axis is missing, the crop genuinely is not measured that way.
Arrowhead
Cattail
| Measure | Arrowhead | Cattail |
|---|---|---|
| Season | Kharif | Perennial |
| Sowing window | Apr–May | Mar–Apr |
| Days to harvest | 120–150 | 12–18 mo |
| Spacing | 45 × 45 cm | 60 × 60 cm |
| Soil pH | 6.0–7.5 | 5.5–7.5 |
| Water | Ponded 15–30 cm | Marshy |
| Temperature °C | 18–30 | 15–32 |
| Seed rate | Corms | Rhizomes |
| Yield | 8–12 t | 20–30 t |
| Watch for | Leaf beetle, rot | Borer, leaf spot |