Frost Dates for Flemington, NJ 08822
Last spring frost April 28 · First fall frost October 14 · 169 frost-free days · USDA Zone 7a
ZIP 08822 has about 32,600 people.
Moderate season: 169 frost-free days. Spring frost risk spans April 14–May 12 (28 days). Fall frost risk spans September 30–October 29 (29 days).
Frost probability for 08822
| Frost | 10% | 50% | 90% |
|---|---|---|---|
| Spring (last frost) | May 12 | April 28 | April 14 |
| Fall (first frost) | September 30 | October 14 | October 29 |
Dates come from NOAA 1971–2000 freeze probabilities at SOMERVILLE 4 NW (20.7 km away); the 50% date is the median year.
Which crops fit a 169-day season in Flemington
In Flemington (169 frost-free days, a moderate season), 30 of 56 planner crops fit outright, 25 get two plantings, 1 crop is perennial.
| Crop | Start indoors | Plant out / sow | Days you have | Verdict | Last sow date |
|---|---|---|---|---|---|
| Tomato | Mar 24 | May 12–May 19 | 127 | fits: 80 days to maturity, 127 available after May 12. | Jun 14 |
| Pepper | Mar 17 | May 12–May 19 | 127 | fits: 75 days to maturity, 127 available after May 12. | Jun 19 |
| Lettuce | Mar 3 | Mar 31–Apr 7 | 204 | two-plantings: Plant Mar 31 and again by Aug 23; both mature before Oct 21. | Aug 23 |
| Carrots | — | Apr 7–Apr 14 | 211 | fits: 70 days to maturity, 211 available after Apr 7. | Aug 12 |
| Cucumber | Apr 7 | May 12–May 19 | 141 | two-plantings: Plant May 12 and again by Jul 18; both mature before Sep 30. | Jul 18 |
| Beans | — | May 5–May 19 | 155 | two-plantings: Plant May 5 and again by Jul 25; both mature before Oct 7. | Jul 25 |
| Peas | — | Mar 3–May 12 | 232 | fits: 65 days to maturity, 232 available after Mar 3. | Aug 3 |
| Zucchini | Apr 14 | May 12–May 19 | 141 | two-plantings: Plant May 12 and again by Jul 23; both mature before Sep 30. | Jul 23 |
| Onion | Feb 3 | Mar 31–Apr 14 | 204 | fits: 100 days to maturity, 204 available after Mar 31. | — |
| Spinach | — | Mar 3–Apr 21 | 246 | two-plantings: Plant Mar 3 and again by Sep 11; both mature before Nov 4. | Sep 11 |
| Kale | Feb 17 | Mar 31–Apr 14 | 218 | two-plantings: Plant Mar 31 and again by Aug 27; both mature before Nov 4. | Aug 27 |
| Broccoli | Mar 3 | Mar 31–Apr 14 | 204 | fits: 80 days to maturity, 204 available after Mar 31. | Jul 19 |
| Cabbage | Mar 3 | Mar 31–Apr 14 | 218 | fits: 70 days to maturity, 218 available after Mar 31. | Aug 12 |
| Radish | — | Mar 3–May 26 | 232 | two-plantings: Plant Mar 3 and again by Sep 12; both mature before Oct 21. | Sep 12 |
| Beets | — | Mar 3–May 26 | 232 | two-plantings: Plant Mar 3 and again by Aug 13; both mature before Oct 21. | Aug 13 |
| Potatoes | — | Apr 14–Apr 21 | 190 | fits: 90 days to maturity, 190 available after Apr 14. | — |
| Garlic | — | Oct 14 | 274 | overwinter: Plant Oct 14 to Nov 4; harvest the following summer. | Nov 4 |
| Strawberry | — | Mar 24–May 19 | 225 | perennial: A perennial: plant Mar 24; it fruits from the following year and keeps producing for several years. | — |
| Corn | Mar 31 | May 5–May 12 | 141 | fits: 75 days to maturity, 141 available after May 5. | Jun 26 |
| Pumpkin | Apr 14 | May 12–May 12 | 134 | fits: 100 days to maturity, 134 available after May 12. | Jun 1 |
| Cauliflower | Mar 17 | Apr 21–May 5 | 183 | fits: 75 days to maturity, 183 available after Apr 21. | Jul 24 |
| Swiss Chard | Mar 3 | Apr 14–Apr 14 | 190 | two-plantings: Plant Apr 14 and again by Aug 13; both mature before Oct 21. | Aug 13 |
| Arugula | — | Mar 3–May 26 | 246 | two-plantings: Plant Mar 3 and again by Sep 11; both mature before Nov 4. | Sep 11 |
| Brussel Sprouts | Mar 3 | Mar 31–Apr 14 | 218 | fits: 100 days to maturity, 218 available after Mar 31. | Jul 13 |
| Butternut Squash | Apr 14 | May 12–May 19 | 134 | fits: 100 days to maturity, 134 available after May 12. | Jun 1 |
| Eggplant | Mar 10 | May 12–May 19 | 127 | fits: 70 days to maturity, 127 available after May 12. | Jun 24 |
| Okra | Mar 31 | May 5–May 12 | 148 | two-plantings: Plant May 5 and again by Jul 23; both mature before Sep 30. | Jul 23 |
| Basil | Mar 24 | May 19–May 19 | 134 | two-plantings: Plant May 19 and again by Jul 18; both mature before Sep 30. | Jul 18 |
| Cilantro | — | Mar 31–Apr 21 | 204 | two-plantings: Plant Mar 31 and again by Aug 18; both mature before Oct 21. | Aug 18 |
| Parsley | Feb 17 | May 5–May 12 | 169 | fits: 70 days to maturity, 169 available after May 5. | Jul 29 |
| Celery | Feb 17 | May 5–May 19 | 169 | fits: 120 days to maturity, 169 available after May 5. | Jun 9 |
| Scallions | Feb 17 | Mar 31–Apr 14 | 218 | two-plantings: Plant Mar 31 and again by Aug 22; both mature before Nov 4. | Aug 22 |
| Turnip | — | Mar 31–Apr 14 | 218 | two-plantings: Plant Mar 31 and again by Sep 1; both mature before Nov 4. | Sep 1 |
| Kohlrabi | — | Mar 17–Mar 31 | 232 | two-plantings: Plant Mar 17 and again by Aug 27; both mature before Nov 4. | Aug 27 |
| Bok Choy | Mar 31 | Apr 21–Apr 28 | 183 | two-plantings: Plant Apr 21 and again by Aug 23; both mature before Oct 21. | Aug 23 |
| Collards | Feb 17 | Mar 31–Apr 14 | 218 | two-plantings: Plant Mar 31 and again by Aug 22; both mature before Nov 4. | Aug 22 |
| Cantaloupe | Apr 14 | May 12–May 19 | 127 | fits: 85 days to maturity, 127 available after May 12. | Jun 9 |
| Chives | Feb 3 | May 5–May 12 | 183 | fits: 90 days to maturity, 183 available after May 5. | — |
| Dill | — | Mar 3–May 26 | 232 | two-plantings: Plant Mar 3 and again by Aug 13; both mature before Oct 21. | Aug 13 |
| Oregano | Feb 17 | May 5–May 12 | 183 | fits: 80 days to maturity, 183 available after May 5. | — |
| Rosemary | Feb 3 | May 5–May 12 | 169 | fits: 80 days to maturity, 169 available after May 5. | — |
| Sage | Mar 3 | May 5–May 12 | 183 | fits: 75 days to maturity, 183 available after May 5. | — |
| Thyme | Feb 17 | May 5–May 12 | 183 | fits: 90 days to maturity, 183 available after May 5. | — |
| Calendula | Mar 17 | Apr 14–Apr 28 | 190 | two-plantings: Plant Apr 14 and again by Aug 18; both mature before Oct 21. | Aug 18 |
| Cosmos | Mar 31 | Apr 28–May 12 | 155 | two-plantings: Plant Apr 28 and again by Jul 18; both mature before Sep 30. | Jul 18 |
| Lavender | Feb 3 | Apr 28–May 12 | 190 | fits: 90 days to maturity, 190 available after Apr 28. | — |
| Marigolds | Mar 17 | Apr 28–May 5 | 155 | two-plantings: Plant Apr 28 and again by Jul 28; both mature before Sep 30. | Jul 28 |
| Melons | Apr 14 | May 12–May 19 | 127 | fits: 85 days to maturity, 127 available after May 12. | Jun 9 |
| Mint | — | Apr 28–May 12 | 190 | fits: 90 days to maturity, 190 available after Apr 28. | — |
| Nasturtiums | Mar 31 | Apr 28–May 5 | 155 | two-plantings: Plant Apr 28 and again by Jul 23; both mature before Sep 30. | Jul 23 |
| Pole Beans | — | May 5–May 19 | 148 | fits: 65 days to maturity, 148 available after May 5. | Jul 13 |
| Spaghetti Squash | Apr 14 | May 12–May 19 | 134 | fits: 90 days to maturity, 134 available after May 12. | Jun 11 |
| Sunflowers | — | Apr 28–May 12 | 155 | fits: 70 days to maturity, 155 available after Apr 28. | Jul 8 |
| Tomatillos | Mar 3 | May 5–May 12 | 134 | fits: 75 days to maturity, 134 available after May 5. | Jun 19 |
| Watermelon | Apr 14 | May 5–May 12 | 134 | fits: 80 days to maturity, 134 available after May 5. | Jun 14 |
| Yellow Squash | Apr 14 | May 12–May 19 | 141 | two-plantings: Plant May 12 and again by Jul 23; both mature before Sep 30. | Jul 23 |
| Zinnias | Mar 31 | Apr 28–May 12 | 155 | two-plantings: Plant Apr 28 and again by Jul 18; both mature before Sep 30. | Jul 18 |
Month by month in Flemington
| Month | What to do |
|---|---|
| January | Plan your garden layout and order seeds. Research varieties suited to your frost dates. |
| February | Start indoors: Chives (Feb 3), Lavender (Feb 3), Onion (Feb 3), Rosemary (Feb 3), Celery (Feb 17), Collards (Feb 17), +5 more. |
| March | Start indoors: Broccoli (Mar 3), Brussel Sprouts (Mar 3), Cabbage (Mar 3), Lettuce (Mar 3), Sage (Mar 3), Swiss Chard (Mar 3), +14 more. Direct sow from: Arugula (Mar 3), Beets (Mar 3), Dill (Mar 3), Peas (Mar 3), Radish (Mar 3), Spinach (Mar 3), +3 more. Transplant from: Broccoli (Mar 31), Brussel Sprouts (Mar 31), Cabbage (Mar 31), Collards (Mar 31), Kale (Mar 31), Lettuce (Mar 31), +2 more. Plant: Strawberry (Mar 24). |
| April | Start indoors: Cucumber (Apr 7), Butternut Squash (Apr 14), Cantaloupe (Apr 14), Melons (Apr 14), Pumpkin (Apr 14), Spaghetti Squash (Apr 14), +3 more. Direct sow from: Carrots (Apr 7), Potatoes (Apr 14), Sunflowers (Apr 28). Transplant from: Calendula (Apr 14), Swiss Chard (Apr 14), Bok Choy (Apr 21), Cauliflower (Apr 21), Cosmos (Apr 28), Lavender (Apr 28), +4 more. Last frost around April 28. |
| May | Direct sow from: Beans (May 5), Pole Beans (May 5). Transplant from: Celery (May 5), Chives (May 5), Corn (May 5), Okra (May 5), Oregano (May 5), Parsley (May 5), +17 more. |
| June | Last sowing dates: Butternut Squash (Jun 1), Pumpkin (Jun 1), Cantaloupe (Jun 9), Celery (Jun 9), Melons (Jun 9), Spaghetti Squash (Jun 11), +6 more. |
| July | Last sowing dates: Sunflowers (Jul 8), Brussel Sprouts (Jul 13), Pole Beans (Jul 13), Basil (Jul 18), Cosmos (Jul 18), Cucumber (Jul 18), +10 more. |
| August | Last sowing dates: Peas (Aug 3), Cabbage (Aug 12), Carrots (Aug 12), Beets (Aug 13), Dill (Aug 13), Swiss Chard (Aug 13), +8 more. |
| September | Last sowing dates: Turnip (Sep 1), Arugula (Sep 11), Spinach (Sep 11), Radish (Sep 12). |
| October | Direct sow from: Garlic (Oct 14). First frost around October 14. |
| November | Last sowing dates: Garlic (Nov 4). |
| December | Clean up spent plants. Add compost to beds. Rest, review, and plan next year's garden. |
Frequently Asked Questions
What is the last frost date for Flemington, NJ (ZIP 08822)?
The median last spring frost date for Flemington, NJ (ZIP code 08822) is around April 28. This is the 50th-percentile date — meaning half of all years see frost end before this date. Use the 10% and 90% dates to understand the full range of risk in your area. One year in ten frost ends before April 14; one in ten it runs past May 12.
What is the first fall frost date in Flemington, NJ?
The median first fall frost date for Flemington, NJ is around October 14. Plan to harvest or protect frost-sensitive crops like tomatoes and peppers at least a week before this date to avoid losses. The first frost arrives around September 30 in the earliest one-in-ten years, so cover tomatoes and peppers from then.
How long is the growing season in Flemington, NJ?
The frost-free growing season in Flemington is about 169 days. This window — from your last spring frost to your first fall frost — is when warm-season vegetables thrive. Cold-hardy crops like kale, spinach, and peas can extend your season by weeks on either side. In Flemington (169 frost-free days, a moderate season), 30 of 56 planner crops fit outright, 25 get two plantings, 1 crop is perennial.
What USDA hardiness zone is Flemington, NJ?
Flemington, NJ is in USDA hardiness zone 7a (2023 USDA Plant Hardiness Zone Map). Zones come from the average coldest winter temperature, so they tell you which perennials survive the winter; the frost dates on this page tell you when to plant.
When should I start tomatoes indoors in Flemington, NJ?
Start tomatoes indoors Mar 24 and plant out May 12 in Flemington. The planner uses the local median last frost and this crop's indoor-start and transplant offsets.
How many plantings of lettuce fit in Flemington?
Two: plant Mar 31 and again by Aug 23; both mature before Oct 21.
When do I plant garlic in Flemington?
Oct 14 to Nov 4; it overwinters and is ready the following summer.
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