Grows best in well cultivated soil in a sunny position. Cilantro is a short lived plant and is very prone to bolting – so having seeds started at different times to ensure a crop all summer long is best. When flower heads appear cut them off to extend the life of the plant.Plant in a location that enjoys partial sun and remember to water moderately. Keep in mind when planting that Jantar is thought of as hardy, so it can be safe to leave outdoors for the majority of winter (although if in doubt, using a row cover is often a good idea). Ideally plant in loamy and sandy soil and try to keep the ph of your soil between the range of 4.9 and 8.2 as Jantar likes to be in moderately acidic soil to weakly alkaline soil.
This plant is best left not transplanted, so sow directly into soil outdoors after the last frost, or start indoors in peat pellets that can be directly planted without disturbing the roots.Aim to sow 0.23 inches (0.6 cm) deep and try to ensure a gap of at least 5.85 inches (15.0 cm). Soil temperature should be kept higher than 21°C / 70°F to ensure good germination.