Try to plant in a location that enjoys full sun and remember to water moderately. Harlequin is generally regarded as a tender plant, so remember to ensure that temperatures are mild before moving outdoors. Harlequin needs a soil ph of 6.1 to 7.5 (weakly acidic soil - weakly alkaline soil).
Growing Harlequin from seed
Aim to sow 1.17 inches (3.0 cm) deep and try to ensure a gap of at least 2.28 feet (70.0 cm). For optimal germination, soil temperature should be a minimum of 21°C / 70°F.
Transplanting Harlequin
Harlequin is tender, so ensure you wait until all danger of frost has passed in your area before considering planting outside.