Heritage Onion Weathersfield - Large Red (Net Wt. 800mg) - Matures in 100 days. The 3"-4" bulbs are flattened globes of deep burgundy skin and pale pink flesh. A long day onion, they are mild tasting and keep very well when allowed to dry before storing. Harvest when the green tops die down in late summer - approx. 100 days from transplant.