When to plant mustard greens
Vegetable, half hardy
Leaves are ready in about 25–50 days. Clemson says fall plantings tolerate frost but a hard freeze can injure them, and spring sowings bolt as soon as the weather warms. No week-before-frost figure was on the page opened.
The general rule
- Days to maturity
- 25–50 days
What that means in different climates
The same rule applied to the safer frost dates of cities from cold to frost-free.
| City | Last frost · safer |
|---|---|
| San Jose, CA | Jan 23 |
| Tucson, AZ | Mar 2 |
| Portland, OR | Mar 21 |
| Baltimore, MD | Apr 4 |
| New York, NY | Apr 12 |
| Nashville, TN | Apr 16 |
| Louisville, KY | Apr 23 |
| Omaha, NE | May 6 |
| Colorado Springs, CO | May 15 |
| Miami, FL | Frost rare | Frost is rare: fall and winter. |