When to plant Collard greens in Maryland
In spring, from Feb 15 – May 1 in Baltimore to Mar 10 – June 1 in Westminster.
In fall, from July 15 – Aug 15 in Bowie to Aug 25 – Nov 1 in Baltimore.
Dates are for setting out plants. USDA's earliest safe spring and latest safe fall planting dates, matched to each place's average frost dates.
| Place | Spring | Fall |
|---|---|---|
| Aberdeen | Mar 1 – June 1 | Aug 1 – Sept 15 |
| Annapolis | Mar 1 – June 1 | Aug 15 – Oct 1 |
| Baltimore | Feb 15 – May 1 | Aug 25 – Nov 1Now |
| Bel Air | Mar 1 – June 1 | Aug 1 – Sept 15 |
| Bowie | Mar 10 – June 1 | July 15 – Aug 15 |
| Cambridge | Mar 1 – June 1 | Aug 15 – Oct 1 |
| College Park | Mar 1 – June 1 | Aug 1 – Sept 15 |
| Cumberland | Mar 1 – June 1 | July 15 – Aug 15 |
| Easton | Mar 1 – June 1 | Aug 15 – Oct 1 |
| Elkton | Mar 1 – June 1 | Aug 1 – Sept 15 |
| Frederick | Mar 1 – June 1 | Aug 15 – Oct 1 |
| Gaithersburg | Mar 1 – June 1 | Aug 15 – Oct 1 |
| Greenbelt | Mar 1 – June 1 | Aug 1 – Sept 15 |
| Hagerstown | Mar 1 – June 1 | Aug 1 – Sept 15 |
| Havre de Grace | Mar 1 – June 1 | Aug 1 – Sept 15 |
| Hyattsville | Mar 1 – June 1 | Aug 15 – Oct 1 |
| La Plata | Mar 10 – June 1 | Aug 1 – Sept 15 |
| Laurel | Mar 1 – June 1 | Aug 15 – Oct 1 |
| New Carrollton | Mar 10 – June 1 | July 15 – Aug 15 |
| Rockville | Mar 1 – June 1 | Aug 15 – Oct 1 |
| Salisbury | Mar 1 – June 1 | Aug 15 – Oct 1 |
| Takoma Park | Mar 1 – June 1 | Aug 15 – Oct 1 |
| Westminster | Mar 10 – June 1 | July 15 – Aug 15 |
Planting dates: USDA Home and Garden Bulletin No. 9 (1967), tables 4 and 5. Frost dates: NOAA U.S. Climate Normals 1991–2020. “—” means the place's frost date is outside the table. The full USDA table for collards.