Arrowhead vs Water Spinach
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
Water Spinach
| Measure | Arrowhead | Water Spinach |
|---|---|---|
| Season | Kharif | Kharif |
| Sowing window | Apr–May | Jun–Jul |
| Days to harvest | 120–150 | 40–60 |
| Spacing | 45 × 45 cm | 30 × 20 cm |
| Soil pH | 6.0–7.5 | 5.5–7.0 |
| Water | Ponded 15–30 cm | Flooded |
| Temperature °C | 18–30 | 22–32 |
| Seed rate | Corms | Cuttings |
| Yield | 8–12 t | 25–40 t |
| Watch for | Leaf beetle, rot | Leaf beetle, white rust |