Germinating air temperatures are 40 to 86 degrees Fahrenheit. Optimal temperatures for growth range from 65 to 70 degrees Fahrenheit. High summertime temperatures may cause bolting in broccoli plants.
Plant transplants that are 4 to 6 weeks old (and have 4 or 5 leaves) outdoors, 12 to 20 inches apart, in holes slightly deeper than their container depth.
Can usually be planted two weeks before the last frost date.
45 days to maturity
In Garden One 2022
Events
March 2, 2021: Seeds sown (Indoors under lights.) March 5, 2021: Plant emerged April 9, 2021: Transplanted (In garden one.) March 11, 2022: Seeds sown (Indoors under lights ) March 16, 2022: Plant emerged (2 seedlings emerged.)
