When to plant Leeks in Rhode Island
In spring, from Mar 1 – Apr 1 in Cranston to Mar 15 – Apr 15 in Woonsocket.
In fall: USDA's 1967 table lists leeks as generally spring-planted in every place here. Newer advice from your state's extension service may differ.
USDA's earliest safe spring and latest safe fall planting dates, matched to each place's average frost dates.
| Place | Spring |
|---|---|
| Central Falls | Mar 15 – Apr 15 |
| Cranston | Mar 1 – Apr 1 |
| East Providence | Mar 1 – Apr 1 |
| Newport | Mar 1 – Apr 1 |
| Pawtucket | Mar 15 – Apr 15 |
| Providence | Mar 1 – Apr 1 |
| Warwick | Mar 1 – Apr 1 |
| Woonsocket | Mar 15 – Apr 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 leeks.