Slow to germinate.
Sow 0.47 inches (1.2 cm) deep with a guideline distance of 0.98 inches (2.5 cm). Soil temperature should be kept higher than 16°C / 61°F to ensure good germination.By our calculations, you should look at sowing Hollow Crown about 15 days after your last frost date.
Harvest after a few good frosts.
This variety tends to be ready for harvesting by early winter.