Place guide
Planting zones in Providence-Warwick, RI-MA
This metro spans USDA zones 6b to 7b, so there is no single zone for Providence-Warwick, RI-MA and anyone who gives you one is rounding. 53% of its ZIP codes are zone 7a; the rest are not.
Your ZIP code
Get the exact answer for your address
Everything above describes Providence-Warwick, RI-MA as a whole. Hardiness zones and freeze dates are published per ZIP code, so yours is exact — enter it and this page will tell you your zone, which NOAA station it comes from and how far away that station is.
Providence-Warwick, RI-MA does not have one planting answer
Its own weather stations disagree about 12 of the 32 crops in this table right now, so any single list would be wrong for part of the metro area. That is not a gap in the data — it is what the data says.
- Shortest season
- 158 days
TAUNTON MUNI AP, MA US (USW00054777) - Longest season
- 216 days
NEWPORT ROSE, RI US (USC00375215)
58 days of growing season separate those two stations, and both serve ZIP codes in Providence-Warwick, RI-MA. The ZIP lookup above answers for one address instead of averaging a place that has no average.
Why the hardiness zone does not settle this
A USDA zone is a winter-minimum statistic. It was never a growing-season one, and it does not behave like one: within a single zone the growing season runs a median 54 days wider at the 10th–90th percentile, and annual growing degree days vary by 2.02×.
The zones also overlap rather than stack — 30% of zone 6b freezes before the median zone 6a station. The zone tells you what survives your winter; the station tells you what finishes before your autumn.
All 19 stations agreeAt least one station
Every one of the 19 NOAA stations serving this metro area counts May 3 – October 8 as growing season (158 days). Widening to any single station gives April 7 – November 13 (220 days).
That is a 62-day difference inside one metro area — which is why this page gives ranges rather than a single planting date. The ZIP lookup above resolves it to one station.
Which zone you are in depends where you are
Providence-Warwick, RI-MA covers 3 hardiness zones. A guide that gives the metro one zone has picked whichever is largest and rounded everyone else into it — which is fine for the 53% in zone 7a and wrong for the other 47%. Here is the actual split.
| Zone | ZIP codes | Share | |
|---|---|---|---|
| 7a | 61 | 53% | |
| 6b | 53 | 46% | |
| 7b | 1 | 1% |
Zones are published per ZIP code, so yours is exact even though the metro's is not. The hardiness tool will tell you which one you are in.
Your freeze dates
Those are the earliest and latest medians among the 19 stations serving this metro — not an average, and not one station standing in for the rest. Half of years freeze later than a station's own median.
The spread is the point. Even in a metro that is one hardiness zone throughout, its stations disagree about the last spring freeze. Hardiness zone and frost date measure different things — a zone is the average annual coldest night, a freeze date is when the season turns — and a place can be uniform in one and varied in the other. Use the tools below with your own ZIP rather than the ends of this range.
Your growing season
NOAA publishes a growing-season length for each station, and across the 19 stations serving Providence-Warwick, RI-MA it runs 158–216 days . That figure is published, not computed from the two freeze dates — subtracting one from the other gives the wrong answer wherever a season crosses New Year. Mean summer high (June–August) runs 76–83 °F , below the 90 °F point where cool-season crops reliably bolt. Summer rain over the same months runs 9.7–12.6" across those 19 stations, against the rough inch a week — about 13 inches over the same 92 days — that a vegetable garden is usually reckoned to want. The middle station covers about 85% of it, so expect to make up the rest. The inches are NOAA's published normals; the inch a week is a rule of thumb, and it takes no account of a 80 °F summer afternoon drying the soil faster than a cool one.
When to start seeds in Providence-Warwick, RI-MA
Every spring job for 63 crop dates, counted from this metro's own last spring freeze. Each is a range across all 19 stations — the earliest and latest that job falls anywhere in the metro — because no one station speaks for the whole area.
| Crop | Job | When | Offset |
|---|---|---|---|
| Green Onions | Start indoors | February 10 – March 8 | 8 weeks before |
| Peppers | Start indoors | February 10 – March 8 | 8 weeks before |
| Broccoli | Start indoors | February 24 – March 22 | 6 weeks before |
| Cabbage | Start indoors | February 24 – March 22 | 6 weeks before |
| Collards | Start indoors | February 24 – March 22 | 6 weeks before |
| Kale | Start indoors | February 24 – March 22 | 6 weeks before |
| Leaf Lettuce | Start indoors | February 24 – March 22 | 6 weeks before |
| Peas | Direct sow | February 24 – March 22 | 6 weeks before |
| Spinach | Direct sow | February 24 – March 22 | 6 weeks before |
| Sweet Potato | Start indoors | February 24 – March 22 | 6 weeks before |
| Tomatoes | Start indoors | February 24 – March 22 | 6 weeks before |
| Bok Choy | Start indoors | March 3 – March 29 | 5 weeks before |
| Kohlrabi | Start indoors | March 3 – March 29 | 5 weeks before |
| Swiss Chard | Start indoors | March 3 – March 29 | 5 weeks before |
| Arugula | Direct sow | March 10 – April 5 | 4 weeks before |
| Baby Salad Greens | Direct sow | March 10 – April 5 | 4 weeks before |
| Beets | Direct sow | March 10 – April 5 | 4 weeks before |
| Green Onions | Direct sow | March 10 – April 5 | 4 weeks before |
| Mustard Greens | Direct sow | March 10 – April 5 | 4 weeks before |
| Okra | Start indoors | March 10 – April 5 | 4 weeks before |
| Radishes | Direct sow | March 10 – April 5 | 4 weeks before |
| Turnips | Direct sow | March 10 – April 5 | 4 weeks before |
| Cabbage | Set out | March 17 – April 12 | 3 weeks before |
| Carrots | Direct sow | March 17 – April 12 | 3 weeks before |
| Collards | Direct sow | March 17 – April 12 | 3 weeks before |
| Collards | Set out | March 17 – April 12 | 3 weeks before |
| Cucumbers | Start indoors | March 17 – April 12 | 3 weeks before |
| Green Onions | Set out | March 17 – April 12 | 3 weeks before |
| Kale | Direct sow | March 17 – April 12 | 3 weeks before |
| Kale | Set out | March 17 – April 12 | 3 weeks before |
| Kohlrabi | Direct sow | March 17 – April 12 | 3 weeks before |
| Kohlrabi | Set out | March 17 – April 12 | 3 weeks before |
| Leaf Lettuce | Direct sow | March 17 – April 12 | 3 weeks before |
| Pumpkins | Start indoors | March 17 – April 12 | 3 weeks before |
| Summer Squash | Start indoors | March 17 – April 12 | 3 weeks before |
| Winter Squash | Start indoors | March 17 – April 12 | 3 weeks before |
| Zucchini | Start indoors | March 17 – April 12 | 3 weeks before |
| Bok Choy | Direct sow | March 24 – April 19 | 2 weeks before |
| Bok Choy | Set out | March 24 – April 19 | 2 weeks before |
| Broccoli | Set out | March 24 – April 19 | 2 weeks before |
| Cilantro | Direct sow | March 24 – April 19 | 2 weeks before |
| Leaf Lettuce | Set out | March 24 – April 19 | 2 weeks before |
| Swiss Chard | Direct sow | March 24 – April 19 | 2 weeks before |
| Swiss Chard | Set out | March 24 – April 19 | 2 weeks before |
| Dill | Direct sow | March 31 – April 26 | 1 week before |
| Bush Beans | Direct sow | April 14 – May 10 | 1 week after |
| Cucumbers | Set out | April 14 – May 10 | 1 week after |
| Pumpkins | Direct sow | April 14 – May 10 | 1 week after |
| Pumpkins | Set out | April 14 – May 10 | 1 week after |
| Summer Squash | Direct sow | April 14 – May 10 | 1 week after |
| Summer Squash | Set out | April 14 – May 10 | 1 week after |
| Sweet Corn | Direct sow | April 14 – May 10 | 1 week after |
| Tomatoes | Set out | April 14 – May 10 | 1 week after |
| Winter Squash | Direct sow | April 14 – May 10 | 1 week after |
| Winter Squash | Set out | April 14 – May 10 | 1 week after |
| Zucchini | Direct sow | April 14 – May 10 | 1 week after |
| Zucchini | Set out | April 14 – May 10 | 1 week after |
| Cucumbers | Direct sow | April 21 – May 17 | 2 weeks after |
| Okra | Direct sow | April 21 – May 17 | 2 weeks after |
| Okra | Set out | April 21 – May 17 | 2 weeks after |
| Peppers | Set out | April 21 – May 17 | 2 weeks after |
| Southern Peas | Direct sow | April 21 – May 17 | 2 weeks after |
| Sweet Potato | Set out | April 21 – May 17 | 2 weeks after |
The week offsets are conventional extension guidance and vary by variety; the freeze dates they are counted from are measured. For a single date rather than a range, run when do I start my seeds? with your own ZIP code.
What survives the winter changes across Providence-Warwick, RI-MA
Of 74 perennial fruits, nuts, berries, vegetables and herbs, 58 come through the winter in zone 7a and only 51 in zone 6b. That is a different garden at each end of the same metro.
| Zone | ZIPs | Survive | Fail for being too warm |
|---|---|---|---|
| 6b | 53 | 51 of 74 | 0 |
| 7a | 61 | 58 of 74 | 1 |
| 7b | 1 | 56 of 74 | 3 |
The last column is the counterintuitive one, and it is why the totals do not simply rise as the winters get milder. Most temperate fruit needs a documented number of hours below about 45 °F to break dormancy and set a crop, so an apple fails in a winter that is too warm; currants and rhubarb cook in the summer heat that comes with it. See the full list with reasons.
Cautious — shortens the seasonMedian across stationsOptimistic
- Last spring freeze
- Plan to May 18 to be careful. Median April 7 – May 3 across 19 stations; March 28 is the optimistic end.
- First fall freeze
- Plan to September 25 to be careful. Median October 8 – November 13 across 19 stations; November 27 is the optimistic end.
NOAA publishes these as probabilities, not averages — the middle figure is a median, so half of years fall either side of it. The cautious end is the 10% tail: in roughly nine years in ten the freeze falls on the safe side of it.
The 19 stations behind these numbers
All 19 NOAA stations whose normals this page quotes, spanning about 77 km north to south. Every one is named with its identifier in the station list below — this page does not single one out, because no one station speaks for a whole metro area.
A relative sketch, not a map with a projection: longitude is adjusted for latitude so the shape is not stretched, and there is no basemap. For the one station nearest a specific address, with its real distance, use the ZIP lookup above.
Every figure above comes from these, and each is named so you can check it. Which station serves a given ZIP code, and how far away it is, varies across the metro — the table below gives it per ZIP code rather than this page averaging it.
| Station | NOAA ID | Last spring freeze | First fall freeze | Season |
|---|---|---|---|---|
| Brockton, MA | USC00190860 | April 22 | October 19 | 178 days |
| Coventry 2, RI | USC00371875 | April 22 | October 20 | 179 days |
| Kingston 1 NW, RI | USW00054796 | April 27 | October 15 | 171 days |
| Kingston 1 W, RI | USW00054797 | May 1 | October 12 | 163 days |
| Kingston, RI | USC00374266 | May 3 | October 8 | 159 days |
| N Foster 1 E, RI | USC00375270 | April 25 | October 19 | 176 days |
| New Bedford Coop, MA | USC00195246 | April 11 | November 5 | 208 days |
| New Bedford Muni AP, MA | USW00094726 | April 29 | October 15 | 167 days |
| Newport Rose, RI | USC00375215 | April 7 | November 13 | 216 days |
| Newport State AP, RI | USW00014787 | April 11 | November 4 | 206 days |
| Norton W, MA | USC00195984 | April 27 | October 15 | 168 days |
| Nws Boston/Norton, MA | USC00198368 | April 23 | October 17 | 177 days |
| Providence T F Green AP, RI | USW00014765 | April 11 | October 30 | 199 days |
| Rochester, MA | USC00196938 | April 23 | October 21 | 180 days |
| Taunton Muni AP, MA | USW00054777 | May 2 | October 8 | 158 days |
| Taunton, MA | USC00198367 | April 22 | October 19 | 179 days |
| Tiverton, RI | USC00377581 | April 11 | November 2 | 203 days |
| Westerly State AP, RI | USW00014794 | April 11 | October 31 | 201 days |
| Woonsocket, RI | USC00379423 | April 22 | October 19 | 179 days |
These are medians, not averages — NOAA publishes freeze dates as a probability distribution, and half of years freeze later than the date shown.
Every ZIP code in Providence-Warwick, RI-MA
Zones are published per ZIP code, not per metro area, so this is the exact answer rather than the metro area's average. The station column is the nearest one to that ZIP code's centroid and how far away it is — the same figure the tools use, shown here so you can see which ZIP codes are well covered and which are reaching.
| ZIP code | USDA zone | Nearest NOAA station | Distance |
|---|---|---|---|
| 02048 | 6b | Norton W, MA | 4.9 km |
| 02356 | 6b | Norton W, MA | 8.5 km |
| 02357 | 6b | Brockton, MA | 6.0 km |
| 02375 | 6b | Brockton, MA | 7.4 km |
| 02702 | 7a | Taunton Muni AP, MA | 10.5 km |
| 02703 | 6b | Norton W, MA | 12.6 km |
| 02715 | 7a | Taunton, MA | 13.0 km |
| 02717 | 7a | Rochester, MA | 6.5 km |
| 02718 | 6b | Taunton Muni AP, MA | 1.7 km |
| 02719 | 7a | New Bedford Coop, MA | 5.1 km |
| 02720 | 7a | New Bedford Muni AP, MA | 13.8 km |
| 02721 | 7a | Tiverton, RI | 7.3 km |
| 02723 | 7a | Tiverton, RI | 9.7 km |
| 02724 | 7a | Tiverton, RI | 6.8 km |
| 02725 | 7a | Tiverton, RI | 10.5 km |
| 02726 | 7a | Tiverton, RI | 15.7 km |
| 02740 | 7a | New Bedford Muni AP, MA | 4.6 km |
| 02743 | 7a | New Bedford Muni AP, MA | 6.2 km |
| 02744 | 7a | New Bedford Coop, MA | 1.4 km |
| 02745 | 7a | New Bedford Muni AP, MA | 3.1 km |
| 02746 | 7a | New Bedford Muni AP, MA | 1.6 km |
| 02747 | 7a | New Bedford Muni AP, MA | 5.0 km |
| 02748 | 7a | New Bedford Coop, MA | 7.2 km |
| 02760 | 6b | Woonsocket, RI | 13.0 km |
| 02763 | 6b | Norton W, MA | 12.1 km |
| 02764 | 6b | Taunton, MA | 9.0 km |
| 02766 | 6b | Norton W, MA | 3.3 km |
| 02767 | 6b | Taunton, MA | 4.7 km |
| 02769 | 7a | Nws Boston/Norton, MA | 15.0 km |
| 02771 | 7a | Providence T F Green AP, RI | 16.2 km |
| 02777 | 7a | Tiverton, RI | 14.6 km |
| 02779 | 6b | Taunton Muni AP, MA | 6.3 km |
| 02780 | 6b | Taunton, MA | 4.5 km |
| 02790 | 7a | Tiverton, RI | 11.0 km |
| 02791 | 7a | Tiverton, RI | 14.9 km |
| 02804 | 6b | Westerly State AP, RI | 9.6 km |
| 02806 | 7a | Providence T F Green AP, RI | 9.4 km |
| 02807 | 7b | Westerly State AP, RI | 26.7 km |
| 02808 | 7a | Westerly State AP, RI | 8.4 km |
| 02809 | 7a | Tiverton, RI | 7.6 km |
| 02812 | 6b | Kingston, RI | 9.7 km |
| 02813 | 7a | Westerly State AP, RI | 11.9 km |
| 02814 | 6b | N Foster 1 E, RI | 5.0 km |
| 02815 | 6b | N Foster 1 E, RI | 10.5 km |
| 02816 | 6b | Coventry 2, RI | 6.3 km |
| 02817 | 6b | Coventry 2, RI | 9.5 km |
| 02818 | 7a | Coventry 2, RI | 6.6 km |
| 02822 | 6b | Kingston 1 NW, RI | 10.1 km |
| 02823 | 6b | Coventry 2, RI | 7.3 km |
| 02824 | 6b | Woonsocket, RI | 6.1 km |
| 02825 | 6b | N Foster 1 E, RI | 8.3 km |
| 02826 | 6b | Woonsocket, RI | 13.0 km |
| 02827 | 6b | Coventry 2, RI | 15.5 km |
| 02828 | 6b | Woonsocket, RI | 13.2 km |
| 02829 | 6b | N Foster 1 E, RI | 12.6 km |
| 02830 | 6b | Woonsocket, RI | 13.7 km |
| 02831 | 6b | Coventry 2, RI | 9.0 km |
| 02832 | 6b | Kingston, RI | 15.5 km |
| 02833 | 6b | Westerly State AP, RI | 15.2 km |
| 02835 | 7a | Newport Rose, RI | 2.6 km |
| 02836 | 7a | Kingston 1 W, RI | 7.1 km |
| 02837 | 7a | Newport State AP, RI | 9.8 km |
| 02838 | 6b | Woonsocket, RI | 2.3 km |
| 02839 | 6b | N Foster 1 E, RI | 12.4 km |
| 02840 | 7a | Newport Rose, RI | 3.6 km |
| 02841 | 7a | Newport Rose, RI | 1.9 km |
| 02842 | 7a | Newport State AP, RI | 2.0 km |
| 02852 | 7a | Coventry 2, RI | 12.0 km |
| 02857 | 6b | N Foster 1 E, RI | 9.1 km |
| 02858 | 6b | Woonsocket, RI | 13.4 km |
| 02859 | 6b | N Foster 1 E, RI | 11.6 km |
| 02860 | 7a | Woonsocket, RI | 15.2 km |
| 02861 | 7a | Woonsocket, RI | 16.4 km |
| 02863 | 7a | Woonsocket, RI | 13.2 km |
| 02864 | 6b | Woonsocket, RI | 6.1 km |
| 02865 | 6b | Woonsocket, RI | 8.4 km |
| 02871 | 7a | Tiverton, RI | 6.1 km |
| 02872 | 7a | Newport State AP, RI | 7.7 km |
| 02873 | 6b | Kingston, RI | 20.3 km |
| 02874 | 7a | Kingston 1 NW, RI | 5.9 km |
| 02875 | 6b | Kingston 1 W, RI | 8.3 km |
| 02876 | 6b | Woonsocket, RI | 7.9 km |
| 02878 | 7a | Tiverton, RI | 3.1 km |
| 02879 | 7a | Kingston 1 W, RI | 5.5 km |
| 02881 | 6b | Kingston 1 W, RI | 1.3 km |
| 02882 | 7a | Kingston 1 W, RI | 8.9 km |
| 02885 | 7a | Tiverton, RI | 11.8 km |
| 02886 | 7a | Providence T F Green AP, RI | 2.9 km |
| 02888 | 7a | Providence T F Green AP, RI | 3.6 km |
| 02889 | 7a | Providence T F Green AP, RI | 5.1 km |
| 02891 | 7a | Westerly State AP, RI | 1.2 km |
| 02892 | 6b | Kingston, RI | 5.0 km |
| 02893 | 6b | Coventry 2, RI | 3.2 km |
| 02894 | 6b | Westerly State AP, RI | 13.4 km |
| 02895 | 6b | Woonsocket, RI | 2.1 km |
| 02896 | 6b | Woonsocket, RI | 4.5 km |
| 02898 | 6b | Kingston, RI | 10.9 km |
| 02903 | 7a | Providence T F Green AP, RI | 11.0 km |
| 02904 | 6b | Woonsocket, RI | 14.7 km |
| 02905 | 7a | Providence T F Green AP, RI | 7.7 km |
| 02906 | 7a | Providence T F Green AP, RI | 13.6 km |
| 02907 | 7a | Providence T F Green AP, RI | 8.6 km |
| 02908 | 7a | Providence T F Green AP, RI | 13.0 km |
| 02909 | 7a | Providence T F Green AP, RI | 10.8 km |
| 02910 | 7a | Providence T F Green AP, RI | 5.9 km |
| 02911 | 6b | Woonsocket, RI | 14.5 km |
| 02912 | 7a | Providence T F Green AP, RI | 11.8 km |
| 02914 | 7a | Providence T F Green AP, RI | 11.6 km |
| 02915 | 7a | Providence T F Green AP, RI | 8.6 km |
| 02916 | 7a | Providence T F Green AP, RI | 15.0 km |
| 02917 | 6b | Woonsocket, RI | 9.1 km |
| 02918 | 7a | Providence T F Green AP, RI | 13.6 km |
| 02919 | 6b | Providence T F Green AP, RI | 13.8 km |
| 02920 | 7a | Providence T F Green AP, RI | 5.7 km |
| 02921 | 6b | Providence T F Green AP, RI | 8.2 km |
ZIP-code positions are area centroids, so a large rural ZIP code's listed distance is measured from the middle of its area rather than from any particular address in it.
Your own ZIP
Work out your own dates
Each of these takes a ZIP code and answers for that ZIP alone, citing the station it used and how far away it is. There is a ZIP box in the header of every page.
-
What survives my winter?
Runs on the hardiness zone, so it answers for all of Providence-Warwick, RI-MA at once — zone across 74 perennial fruits, berries, vegetables and herbs.
- When do I start my seeds?
Dates every spring job from your own last freeze — sow indoors, set out, direct sow.
- When do I sow the next round?
How often each crop is worth re-sowing, and when the next sowing is due.
- What can I still plant?
Counts the growing days left before your first fall freeze, crop by crop.
Other places to compare
These metros span exactly the same zones — 6b–7b — so the same plants are in and out of range across them. The freeze dates and the spring calendar are their own.
- Reno, NV — zones 6b–7b
- Blacksburg-Christiansburg-Radford, VA — zones 6b–7b
- Chambersburg, PA — zones 6b–7b
- Wenatchee-East Wenatchee, WA — zones 6b–7b
- Johnson City, TN — zones 6b–7b
- Lewiston, ID-WA — zones 6b–7b
- New York-Newark-Jersey City, NY-NJ — zones 6b–7b
Gardening in Rhode Island — zones 6b– 7b covers the whole state: how its 80 ZIP codes divide between 3 hardiness zones, and the freeze dates across every NOAA station in it.
Gear
If you want to act on this
Each link opens an Amazon search rather than a product we picked. We have not tested these and do not rank them — the search is the honest version, and you choose.
- Row cover and frost clothThe season here closes at the first fall freeze dated above — a cover buys back some of those days at the end.
- MulchFor the perennials nearest their cold limit in zone 6b, where an insulated crown is what decides whether they come back.
As an Amazon Associate we earn from qualifying purchases. That costs you nothing extra, and it buys no influence over anything on this site: the dates come from NOAA normals and the zones from the USDA, and no product affects either.
Sources
Where these numbers come from
The hardiness zone is the USDA 2023 Plant Hardiness Zone Map, published per ZIP code by PRISM at Oregon State. The freeze dates are NOAA's 1991–2020 Climate Normals, read from every station whose normals cover a ZIP code in this metro. Nothing here is estimated, and no station stands in for another.
This page names no single station on purpose. Picking one to represent a metro sounds reasonable and is not: the station serving the most ZIP codes is an artifact of where ZIP centroids happen to fall, and it selects a lock on the Monongahela for Pittsburgh and a far southern suburb for Chicago. A range across every station is true; a single cited date for a whole metro is not.