Harvest in: 75 to 80 days
Height: 20 inches
Description:
Developed at the University of Massachusetts (and named after the town of Waltham) to withstand the increasing cold of a fall planting while remaining tender. Sturdy plants produce one 5 to 7 inch primary head and continue to produce large side shoots after the main head has been harvested. Florets are compact and beautiful blue-green on long stems.
SOWING:
For a fall harvest, direct sow seed 1/2 inch deep and 4 inches apart 7 weeks before the first expected fall frost (late July or early August in the Northeast).
THINNING:
When plants are 6 inches tall, thin or transplant seedlings to allow mature plants to stand 20 inches apart.
GERMINATION:
Germinates in 7 to 14 days depending on soil and weather conditions.
REMARKS:
A good spring-planted broccoli if started inside 6 to 8 weeks before transplanting outside in late spring after danger of frost has passed. Heat sensitive.