Colocasia (Arbi)

Water

Too dry to grow on rain alone. It would need irrigation.

Needs about 750 mm of water here in its growing months. Rain gives about 130 mm it can use in a normal year, and 80 mm in a dry year.

Temperature

Grows best at 21–28 °C on average, and survives 10–35 °C.

Here, in its growing months (day / night):

• Jun 41 °C / 27 °C (outside its best range)
• Jul 37 °C / 28 °C (outside its best range)
• Aug 36 °C / 27 °C (outside its best range)
• Sep 34 °C / 24 °C (outside its best range)
• Oct 33 °C / 18 °C
• Nov 28 °C / 11 °C (outside its best range)
• Dec 23 °C / 7 °C (outside its best range)

Months in orange are outside its best range.

Nights in December can bring frost. When frost is forecast, water the field lightly in the evening.

Days in June get hotter than it likes. Time sowing so it flowers before then.

Soil

Soil for Colocasia (Arbi): 7 out of 10 (okay).

Not in the score: nitrogen and boron.

• Soil here is often more alkaline than it likes.
• Many fields here are short of potassium, which it needs a lot.
• Most fields here are short of phosphorus.
• Most fields here are short of organic carbon.

Likes pH 5.5–6.5.

Money

No yield records for this crop yet.

Rain gives it too little of the water it needs, so there's no income figure on rain alone: grow it only with irrigation.

Mandi price at last season's harvest (December 2025–January 2026): about ₹3,350 a quintal across India's mandis.

Prices swing a lot from year to year, so income can be well above or below this range.

Prices are usually best in November.