Developed at the University of Massachusetts (and named after the town of Waltham) to withstand the increasing cold of a fall planting and remain tender. Sturdy plants produce one 5-7 primary head and continue to produce large side shoots after the main head has been harvested. Florets are compact, beautiful blue-green on long stems.
SOWINGDirect sow seeddeep and 4 apart 7 weeks before the first expected fall frost (late July or early August in the northeast) for a fall harvest.
THINNINGWhen plants are 6 tall, thin or transplant seedlings to allow mature plants to stand 20 apart.
GERMINATION7-14 days, depending on soil and weather conditions.
REMARKSA good spring planted broccoli if started inside 6-8 weeks before transplanting outside in late spring after danger of frost has passed. Heat sensitive.
