Castor Seed
Sow in July, harvest around December
This season's sowing time (July–August) is over.
Grown on 1,161 acres here. Priced from mandis across India.
₹12,000–₹19,000
per acre a season, before costs
Likely a loss at typical costs: ₹6,000–₹12,000 an acre a season
- Suits: Rain is enough
- Suits: Ideal temperatures
- Suits: Soil 8/10
Why, and how to make it work Hide details
Water
Rain is enough, even in a dry year.
Needs about 490 mm of water here in its growing months. Rain gives about 720 mm it can use in a normal year, and 610 mm in a dry year.
Heavy rain here can waterlog it. Grow it on raised beds or land that drains well.
Temperature
Grows best at 20–30 °C on average, and survives 15–39 °C.
Here, in its growing months (day / night):
- Jul 29 °C / 23 °C
- Aug 29 °C / 23 °C
- Sep 29 °C / 23 °C
- Oct 29 °C / 21 °C
- Nov 28 °C / 16 °C
- Dec 26 °C / 13 °C (outside its best range)
Months in orange are outside its best range.
Soil
Soil for Castor Seed: 8 out of 10 (good).
- The pH here suits it.
- Many fields here are short of sulphur, which it needs a lot.
- Many fields here are short of boron, which it needs a lot.
Likes pH 6.0–7.5.
How the soil score worksMoney
Yield: about 2.5 quintals an acre here in this season (district figures).
Mandi price at last season's harvest (December 2025–January 2026): about ₹6,218 a quintal across India's mandis.
This week: about ₹7,560 a quintal, the middle of 9 mandis across India (latest 13 Nov). At that price an acre would lose about ₹5,000 a season at typical costs.
- ₹4,670 2021
- ₹6,580 2022
- ₹5,720 2023
- ₹5,530 2024
- ₹6,000 2025
Prices are usually best in November.
Typical costs are about ₹24,000 an acre: about half of what a usual harvest earns (2024–2026), as in farm cost surveys. They are spent whatever the harvest.