Rhode Island · zones 6b–7a
When to plant garlic in Rhode Island.
Rhode Island's window for garlic runs on the fall side of the season. A second, fall sowing fits Oct 27 to Nov 11. Dates below are state medians; your ZIP code shifts them by days to weeks.
The 2026 windows
Garlic dates for a typical Rhode Island season.
Fall round
Oct 27 to Nov 11
Counted back from the ~Oct 27 first frost.
Harvest
~240 days later
~0.2 lb per plant over ~1 weeks.
Rhode Island spans more than one climate: Zone 6 is the most common zone, but the state runs 6b to 7a. That's why the planner works from your ZIP code's frost dates, not your zone: mountain and coastal gardens in the same state can be three weeks apart.
In Rhode Island: watch for
The pests that find garlic here.
A middle-length season, about 200 frost-free days, means garlic overlaps onion thrips for a stretch each summer. Check plants every week or two and treat early.
Silvery streaks and curled leaf tips in hot spells.
Organic fix: Insecticidal soap or neem; hang sticky traps.
Seedlings wilt; white maggots in the bulb base.
Organic fix: Float a row cover over the row; rotate beds each year.
Pale patches with fuzzy gray growth in damp weather.
Organic fix: Space for airflow, water early in the day, spray neem.
White rot
Yellowing and dieback, then wilt; fluffy white mold at the bulb base and roots so rotted the plant lifts straight out.
Organic fix: No cure once it is in the soil. Plant clean stock, never follow onions with onions, and keep infested soil off tools and boots.
Your season math: Rhode Island gives garlic about 200 frost-free days, and it needs roughly 240 days to a first harvest. It's a one-planting crop, so time that single sowing well.
Planting garlic in Rhode Island: questions
When should I plant garlic in Rhode Island?+
Rhode Island's window for garlic is in fall: Oct 27 to Nov 11, keyed to the first fall frost around Oct 27.
What USDA zone is Rhode Island?+
Rhode Island spans zones 6b–7a, mostly zone 6. But frost dates, not zones, set planting time. The free planner uses your ZIP code's actual frost dates.
How many garlic plants do I need?+
Depends who you're feeding. The crop page has exact counts per household size, or the free planner does the math for your family in about 60 seconds.