To grow the plant, the farmer ploughs the land then farrows before planting directly the seeds into the soil.
The plants begin to sprout after about two weeks. At this stage, they require plenty of water that he pumps from River Andugulu.
The challenges come during the rainy season and when there is a dry spell. There are pests that suck saps from the leaves making them become weaker and thinner.
Farmers should also do crop rotation and field hygiene to control pests and diseases.
Dressed in checkered shirt, a dark brown trouser and gumboots, Bernard Kimani walks between tiny plants in Ruku-ini village in Burnt Forest, Uasin-Gishu County.
The plants are coriander (dhania), which he has grown for about a decade on four acres at any time out of the 30 he farms on, 22 which he has leased for Sh6,000 per acre where he grows maize and wheat.