Cattail vs Water Chestnut
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.
Cattail
Water Chestnut
| Measure | Cattail | Water Chestnut |
|---|---|---|
| Season | Perennial | Kharif |
| Sowing window | Mar–Apr | Jun–Jul |
| Days to harvest | 12–18 mo | 150–180 |
| Spacing | 60 × 60 cm | 150 × 150 cm |
| Soil pH | 5.5–7.5 | 6.5–7.5 |
| Water | Marshy | Ponded 50–100 cm |
| Temperature °C | 15–32 | 20–32 |
| Seed rate | Rhizomes | 150–200 kg |
| Yield | 20–30 t | 6–10 t |
| Watch for | Borer, leaf spot | Leaf beetle, aphid |