Frost Dates for Martin, TN 38237
Last spring frost April 8 · First fall frost October 23 · 198 frost-free days · USDA Zone 7b
ZIP 38237 has about 15,600 people.
Long season: 198 frost-free days. Spring frost risk spans March 27–April 19 (23 days). Fall frost risk spans October 8–November 8 (31 days).
Frost probability for 38237
| Frost | 10% | 50% | 90% |
|---|---|---|---|
| Spring (last frost) | April 19 | April 8 | March 27 |
| Fall (first frost) | October 8 | October 23 | November 8 |
Dates come from NOAA 1971–2000 freeze probabilities at MARTIN U OF T BRANCH E (3.6 km away); the 50% date is the median year.
Which crops fit a 198-day season in Martin
In Martin (198 frost-free days, a long 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 4 | Apr 22–Apr 29 | 156 | fits: 80 days to maturity, 156 available after Apr 22. | Jun 23 |
| Pepper | Feb 25 | Apr 22–Apr 29 | 156 | fits: 75 days to maturity, 156 available after Apr 22. | Jun 28 |
| Lettuce | Feb 11 | Mar 11–Mar 18 | 233 | two-plantings: Plant Mar 11 and again by Sep 1; both mature before Oct 30. | Sep 1 |
| Carrots | — | Mar 18–Mar 25 | 240 | fits: 70 days to maturity, 240 available after Mar 18. | Aug 21 |
| Cucumber | Mar 18 | Apr 22–Apr 29 | 170 | two-plantings: Plant Apr 22 and again by Jul 27; both mature before Oct 9. | Jul 27 |
| Beans | — | Apr 15–Apr 29 | 184 | two-plantings: Plant Apr 15 and again by Aug 3; both mature before Oct 16. | Aug 3 |
| Peas | — | Feb 11–Apr 22 | 261 | fits: 65 days to maturity, 261 available after Feb 11. | Aug 12 |
| Zucchini | Mar 25 | Apr 22–Apr 29 | 170 | two-plantings: Plant Apr 22 and again by Aug 1; both mature before Oct 9. | Aug 1 |
| Onion | Jan 14 | Mar 11–Mar 25 | 233 | fits: 100 days to maturity, 233 available after Mar 11. | — |
| Spinach | — | Feb 11–Apr 1 | 275 | two-plantings: Plant Feb 11 and again by Sep 20; both mature before Nov 13. | Sep 20 |
| Kale | Jan 28 | Mar 11–Mar 25 | 247 | two-plantings: Plant Mar 11 and again by Sep 5; both mature before Nov 13. | Sep 5 |
| Broccoli | Feb 11 | Mar 11–Mar 25 | 233 | fits: 80 days to maturity, 233 available after Mar 11. | Jul 28 |
| Cabbage | Feb 11 | Mar 11–Mar 25 | 247 | fits: 70 days to maturity, 247 available after Mar 11. | Aug 21 |
| Radish | — | Feb 11–May 6 | 261 | two-plantings: Plant Feb 11 and again by Sep 21; both mature before Oct 30. | Sep 21 |
| Beets | — | Feb 11–May 6 | 261 | two-plantings: Plant Feb 11 and again by Aug 22; both mature before Oct 30. | Aug 22 |
| Potatoes | — | Mar 25–Apr 1 | 219 | fits: 90 days to maturity, 219 available after Mar 25. | — |
| Garlic | — | Oct 23 | 303 | overwinter: Plant Oct 23 to Nov 13; harvest the following summer. | Nov 13 |
| Strawberry | — | Mar 4–Apr 29 | 254 | perennial: A perennial: plant Mar 4; it fruits from the following year and keeps producing for several years. | — |
| Corn | Mar 11 | Apr 15–Apr 22 | 170 | fits: 75 days to maturity, 170 available after Apr 15. | Jul 5 |
| Pumpkin | Mar 25 | Apr 22–Apr 22 | 163 | fits: 100 days to maturity, 163 available after Apr 22. | Jun 10 |
| Cauliflower | Feb 25 | Apr 1–Apr 15 | 212 | fits: 75 days to maturity, 212 available after Apr 1. | Aug 2 |
| Swiss Chard | Feb 11 | Mar 25–Mar 25 | 219 | two-plantings: Plant Mar 25 and again by Aug 22; both mature before Oct 30. | Aug 22 |
| Arugula | — | Feb 11–May 6 | 275 | two-plantings: Plant Feb 11 and again by Sep 20; both mature before Nov 13. | Sep 20 |
| Brussel Sprouts | Feb 11 | Mar 11–Mar 25 | 247 | fits: 100 days to maturity, 247 available after Mar 11. | Jul 22 |
| Butternut Squash | Mar 25 | Apr 22–Apr 29 | 163 | fits: 100 days to maturity, 163 available after Apr 22. | Jun 10 |
| Eggplant | Feb 18 | Apr 22–Apr 29 | 156 | fits: 70 days to maturity, 156 available after Apr 22. | Jul 3 |
| Okra | Mar 11 | Apr 15–Apr 22 | 177 | two-plantings: Plant Apr 15 and again by Aug 1; both mature before Oct 9. | Aug 1 |
| Basil | Mar 4 | Apr 29–Apr 29 | 163 | two-plantings: Plant Apr 29 and again by Jul 27; both mature before Oct 9. | Jul 27 |
| Cilantro | — | Mar 11–Apr 1 | 233 | two-plantings: Plant Mar 11 and again by Aug 27; both mature before Oct 30. | Aug 27 |
| Parsley | Jan 28 | Apr 15–Apr 22 | 198 | fits: 70 days to maturity, 198 available after Apr 15. | Aug 7 |
| Celery | Jan 28 | Apr 15–Apr 29 | 198 | fits: 120 days to maturity, 198 available after Apr 15. | Jun 18 |
| Scallions | Jan 28 | Mar 11–Mar 25 | 247 | two-plantings: Plant Mar 11 and again by Aug 31; both mature before Nov 13. | Aug 31 |
| Turnip | — | Mar 11–Mar 25 | 247 | two-plantings: Plant Mar 11 and again by Sep 10; both mature before Nov 13. | Sep 10 |
| Kohlrabi | — | Feb 25–Mar 11 | 261 | two-plantings: Plant Feb 25 and again by Sep 5; both mature before Nov 13. | Sep 5 |
| Bok Choy | Mar 11 | Apr 1–Apr 8 | 212 | two-plantings: Plant Apr 1 and again by Sep 1; both mature before Oct 30. | Sep 1 |
| Collards | Jan 28 | Mar 11–Mar 25 | 247 | two-plantings: Plant Mar 11 and again by Aug 31; both mature before Nov 13. | Aug 31 |
| Cantaloupe | Mar 25 | Apr 22–Apr 29 | 156 | fits: 85 days to maturity, 156 available after Apr 22. | Jun 18 |
| Chives | Jan 14 | Apr 15–Apr 22 | 212 | fits: 90 days to maturity, 212 available after Apr 15. | — |
| Dill | — | Feb 11–May 6 | 261 | two-plantings: Plant Feb 11 and again by Aug 22; both mature before Oct 30. | Aug 22 |
| Oregano | Jan 28 | Apr 15–Apr 22 | 212 | fits: 80 days to maturity, 212 available after Apr 15. | — |
| Rosemary | Jan 14 | Apr 15–Apr 22 | 198 | fits: 80 days to maturity, 198 available after Apr 15. | — |
| Sage | Feb 11 | Apr 15–Apr 22 | 212 | fits: 75 days to maturity, 212 available after Apr 15. | — |
| Thyme | Jan 28 | Apr 15–Apr 22 | 212 | fits: 90 days to maturity, 212 available after Apr 15. | — |
| Calendula | Feb 25 | Mar 25–Apr 8 | 219 | two-plantings: Plant Mar 25 and again by Aug 27; both mature before Oct 30. | Aug 27 |
| Cosmos | Mar 11 | Apr 8–Apr 22 | 184 | two-plantings: Plant Apr 8 and again by Jul 27; both mature before Oct 9. | Jul 27 |
| Lavender | Jan 14 | Apr 8–Apr 22 | 219 | fits: 90 days to maturity, 219 available after Apr 8. | — |
| Marigolds | Feb 25 | Apr 8–Apr 15 | 184 | two-plantings: Plant Apr 8 and again by Aug 6; both mature before Oct 9. | Aug 6 |
| Melons | Mar 25 | Apr 22–Apr 29 | 156 | fits: 85 days to maturity, 156 available after Apr 22. | Jun 18 |
| Mint | — | Apr 8–Apr 22 | 219 | fits: 90 days to maturity, 219 available after Apr 8. | — |
| Nasturtiums | Mar 11 | Apr 8–Apr 15 | 184 | two-plantings: Plant Apr 8 and again by Aug 1; both mature before Oct 9. | Aug 1 |
| Pole Beans | — | Apr 15–Apr 29 | 177 | fits: 65 days to maturity, 177 available after Apr 15. | Jul 22 |
| Spaghetti Squash | Mar 25 | Apr 22–Apr 29 | 163 | fits: 90 days to maturity, 163 available after Apr 22. | Jun 20 |
| Sunflowers | — | Apr 8–Apr 22 | 184 | fits: 70 days to maturity, 184 available after Apr 8. | Jul 17 |
| Tomatillos | Feb 11 | Apr 15–Apr 22 | 163 | fits: 75 days to maturity, 163 available after Apr 15. | Jun 28 |
| Watermelon | Mar 25 | Apr 15–Apr 22 | 163 | fits: 80 days to maturity, 163 available after Apr 15. | Jun 23 |
| Yellow Squash | Mar 25 | Apr 22–Apr 29 | 170 | two-plantings: Plant Apr 22 and again by Aug 1; both mature before Oct 9. | Aug 1 |
| Zinnias | Mar 11 | Apr 8–Apr 22 | 184 | two-plantings: Plant Apr 8 and again by Jul 27; both mature before Oct 9. | Jul 27 |
Month by month in Martin
| Month | What to do |
|---|---|
| January | Start indoors: Chives (Jan 14), Lavender (Jan 14), Onion (Jan 14), Rosemary (Jan 14), Celery (Jan 28), Collards (Jan 28), +5 more. |
| February | Start indoors: Broccoli (Feb 11), Brussel Sprouts (Feb 11), Cabbage (Feb 11), Lettuce (Feb 11), Sage (Feb 11), Swiss Chard (Feb 11), +6 more. Direct sow from: Arugula (Feb 11), Beets (Feb 11), Dill (Feb 11), Peas (Feb 11), Radish (Feb 11), Spinach (Feb 11), +1 more. |
| March | Start indoors: Basil (Mar 4), Tomato (Mar 4), Bok Choy (Mar 11), Corn (Mar 11), Cosmos (Mar 11), Nasturtiums (Mar 11), +11 more. Direct sow from: Cilantro (Mar 11), Turnip (Mar 11), Carrots (Mar 18), Potatoes (Mar 25). Transplant from: Broccoli (Mar 11), Brussel Sprouts (Mar 11), Cabbage (Mar 11), Collards (Mar 11), Kale (Mar 11), Lettuce (Mar 11), +4 more. Plant: Strawberry (Mar 4). |
| April | Direct sow from: Sunflowers (Apr 8), Beans (Apr 15), Pole Beans (Apr 15). Transplant from: Bok Choy (Apr 1), Cauliflower (Apr 1), Cosmos (Apr 8), Lavender (Apr 8), Marigolds (Apr 8), Mint (Apr 8), +25 more. Last frost around April 8. |
| May | Frost has passed. Transplant tomatoes, peppers, and basil outdoors. Direct sow beans, cucumbers, squash, and zucchini. |
| June | Last sowing dates: Butternut Squash (Jun 10), Pumpkin (Jun 10), Cantaloupe (Jun 18), Celery (Jun 18), Melons (Jun 18), Spaghetti Squash (Jun 20), +4 more. |
| July | Last sowing dates: Eggplant (Jul 3), Corn (Jul 5), Sunflowers (Jul 17), Brussel Sprouts (Jul 22), Pole Beans (Jul 22), Basil (Jul 27), +4 more. |
| August | Last sowing dates: Nasturtiums (Aug 1), Okra (Aug 1), Yellow Squash (Aug 1), Zucchini (Aug 1), Cauliflower (Aug 2), Beans (Aug 3), +12 more. |
| September | Last sowing dates: Bok Choy (Sep 1), Lettuce (Sep 1), Kale (Sep 5), Kohlrabi (Sep 5), Turnip (Sep 10), Arugula (Sep 20), +2 more. |
| October | Direct sow from: Garlic (Oct 23). First frost around October 23. |
| November | Last sowing dates: Garlic (Nov 13). |
| 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 Martin, TN (ZIP 38237)?
The median last spring frost date for Martin, TN (ZIP code 38237) is around April 8. 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 March 27; one in ten it runs past April 19.
What is the first fall frost date in Martin, TN?
The median first fall frost date for Martin, TN is around October 23. 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 October 8 in the earliest one-in-ten years, so cover tomatoes and peppers from then.
How long is the growing season in Martin, TN?
The frost-free growing season in Martin is about 198 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 Martin (198 frost-free days, a long season), 30 of 56 planner crops fit outright, 25 get two plantings, 1 crop is perennial.
What USDA hardiness zone is Martin, TN?
Martin, TN is in USDA hardiness zone 7b (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 Martin, TN?
Start tomatoes indoors Mar 4 and plant out Apr 22 in Martin. The planner uses the local median last frost and this crop's indoor-start and transplant offsets.
How many plantings of lettuce fit in Martin?
Two: plant Mar 11 and again by Sep 1; both mature before Oct 30.
When do I plant garlic in Martin?
Oct 23 to Nov 13; it overwinters and is ready the following summer.
Can I get two tomato crops in Martin?
Yes: plant out Apr 22 for a summer crop, and set out a second round of transplants by Jun 23 for a fall crop.
Nearby and related
- Frost dates for Union City, TN 38261 (16.5 mi)
- Frost dates for McKenzie, TN 38201 (23.5 mi)
- Frost dates for Mayfield, KY 42066 (27.6 mi)
- Frost dates for Paris, TN 38242 (28 mi)
- Frost dates for Milan, TN 38358 (31.1 mi)
- When to plant in TN
- When to plant Peppers in TN
- When to plant Cucumbers in TN
- When to plant Zucchini in TN
- When to plant Butternut Squash in TN
- When to plant Basil in TN
- When to plant Sweet Corn in TN
- Look up another ZIP