Growing sunflower and castor

The ecological requirement for castor is rainfall 500-600mm per year, which should be well-distributed, an altitude of 0-1800m above sea level, temperatures of 15-39 degrees c., and the soils should be deep, well-drained sandy loams and pH of 5-6.5.

The ecological requirement for sunflower is rainfall of a minimum of 450mm per year, which should be well-distributed, an altitude of 0-2600m above sea level and the soils should be deep, well-drained and fertile.

Both crops can do well in hot and dry places but you will need to supplement rainfall with irrigation to ensure survival during dry season.

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