5360 - Waltham Broccoli 80-85 days. Developed in 1951 and long considered the standard open-pollinated fall broccoli. We have found a reliable strain which consistently produces 15cm/6" heads with medium beads. These are attractive stocky 50cm/20" plants. Many hybrids make bigger central heads, but Waltham delivers a goodly number of side shoots. Caution: not suitable for summer crops, will not head properly in heat.