When to Plant Scallions in Rhode Island (2026 Guide)
Knowing the optimal times to plant scallions in Rhode Island can help you enjoy a fresh harvest throughout the growing season. Depending on your location in the state, you'll need to consider the last spring frost dates, which in Zone 6a occurs around April 20, while those in Zone 5b can expect the last frost as late as May 5. These dates will influence when to sow your seeds and start your scallion growing journey.
Choosing the right planting dates ensures that your scallions thrive. In Rhode Island, the difference in frost-free days—approximately 185 days for Zone 6a and 153 days for Zone 5b—can significantly impact your garden's yield. Avoiding late frosts allows scallions to grow robustly, typically requiring a short 60–70 days from seed to harvest, so planning is essential.
For the best results, stagger your scallion plantings every 3-4 weeks for a continuous harvest from June through the fall. Begin your planting as soon as your soil is workable after the last frost, ensuring that your scallions have the best chance of growing into the tasty, tender greens you desire for your dishes.
Planting Schedule by USDA Zone in Rhode Island
| Zone | Indoor start | Transplant out | Direct sow | Harvest |
|---|---|---|---|---|
| Zone 6a | Start February 15 – March 1, ~6–8 weeks before April 20 | Transplant outdoors from April 20 – May 5 | Direct sow from April 20 – July 1 | Harvest from June 10 – October 10 |
| Zone 5b | Start March 1 – March 15, ~6–8 weeks before May 5 | Transplant outdoors from May 5 – May 15 | Direct sow from May 5 – June 15 | Harvest from July 15 – October 5 |
Scallions Planting Windows in Rhode Island
- Indoor start: Start your scallion seeds indoors from February 15 to March 1.
- Transplant outdoors: Transplant your scallions outdoors between April 20 and May 5.
- Harvest: Expect to harvest scallions from June 10 through October 10.
Common Mistakes Growing Scallions in Rhode Island
- One mistake many Rhode Island gardeners make is to start planting too late in the season. The chilly spring winds and lingering frost can delay growth and impact yields significantly, especially around April 20 in Zone 6a and May 5 in Zone 5b.
- Planting scallions too densely can hinder their growth and create competition for nutrients. Although they can grow close together, ensure you leave sufficient space to promote healthier plants and aid in their development throughout Rhode Island's humid summer months.
- Ignoring local weather conditions is a common pitfall. Rhode Island's coastal humidity and potential for late spring frosts can impact your gardening. Always be prepared to cover your plants when unseasonable cold weather strikes after you've directly sown your seeds.
- Failing to succession plant can also lead to gaps in your scallion harvest. By sowing seeds every few weeks, you can avoid a massive harvest all at once, which often results in waste. A staggered planting strategy suits Rhode Island's favorable growing season.
- Many gardeners believe they should only plant scallions in spring. However, fall sowing can be just as beneficial in Rhode Island. Scallions can tolerate light frosts, occasionally making them suitable for winter harvests when established before the colder temperatures arrive.
Frequently Asked Questions
What if I'm in a cold pocket of Rhode Island?
If your area is typically cooler, consider starting your seeds indoors earlier and then transplanting when the risk of frost has passed. This allows for better growth after the warmer conditions establish. Monitor local frost dates closely.
Can I still plant scallions in May?
Yes, you can still plant scallions in May, particularly if you're in Zone 5b. Just be aware that planting late may result in smaller plants that won't mature before the fall frost. Consider extending your season with row covers if needed.
How do I maintain moisture during hot summer months?
Ensure to water your scallions deeply and consistently, especially during Rhode Island's muggy summers. Consider using mulch to retain moisture and suppress weeds, allowing your plants to grow without competition.
What happens if my scallions freeze?
Scallions are remarkably resilient to frost, and light freezes will not entirely ruin them. If they do freeze, harvest them as soon as possible and use them cooked, as the texture may soften but they remain edible.
How can I extend my harvest into the fall?
To extend your harvest, consider planting scallions in late summer. They can still grow and be harvested until the first fall frost around October 5. Use row covers during exceptionally low temperatures to protect your plants.
Keep Learning
City guides in Rhode Island
Other crops in Rhode Island
Typical fall sowing window for Scallions in Rhode Island: August 9 – August 30.