Thin to 5cm and aim for quick growing plants to harvest without woodiness
Keep in mind when planting that Red top is thought of as tender, so remember to wait until your soil is warm and the night time temperature is well above freezing before moving outside.Quick to germinate, start when air temperature does not fall below 7C. Sow throughout spring and early summer to prolong the harvest
Try to aim for a seed spacing of at least 1.95 inches (5.0 cm) and sow at a depth of around 0.2 inches (0.5 cm). Soil temperature should be kept higher than 7°C / 45°F to ensure good germination.Thin to at least 5 cm apart
Ensure that temperatures are mild and all chance of frost has passed before planting out, as Red top is a tender plant.Grow quickly in rich soil to prevent toughness
This variety tends to be ready for harvesting by late spring.