Frost Dates for Somerville, TN 38068
Last spring frost April 5 · First fall frost October 26 · 204 frost-free days · USDA Zone 8a
ZIP 38068 has about 10,400 people.
Long season: 204 frost-free days. Spring frost risk spans March 23–April 17 (25 days). Fall frost risk spans October 10–November 12 (33 days).
Frost probability for 38068
| Frost | 10% | 50% | 90% |
|---|---|---|---|
| Spring (last frost) | April 17 | April 5 | March 23 |
| Fall (first frost) | October 10 | October 26 | November 12 |
Dates come from NOAA 1971–2000 freeze probabilities at MOSCOW (22.1 km away); the 50% date is the median year.
Which crops fit a 204-day season in Somerville
In Somerville (204 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 1 | Apr 19–Apr 26 | 162 | fits: 80 days to maturity, 162 available after Apr 19. | Jun 26 |
| Pepper | Feb 22 | Apr 19–Apr 26 | 162 | fits: 75 days to maturity, 162 available after Apr 19. | Jul 1 |
| Lettuce | Feb 8 | Mar 8–Mar 15 | 239 | two-plantings: Plant Mar 8 and again by Sep 4; both mature before Nov 2. | Sep 4 |
| Carrots | — | Mar 15–Mar 22 | 246 | fits: 70 days to maturity, 246 available after Mar 15. | Aug 24 |
| Cucumber | Mar 15 | Apr 19–Apr 26 | 176 | two-plantings: Plant Apr 19 and again by Jul 30; both mature before Oct 12. | Jul 30 |
| Beans | — | Apr 12–Apr 26 | 190 | two-plantings: Plant Apr 12 and again by Aug 6; both mature before Oct 19. | Aug 6 |
| Peas | — | Feb 8–Apr 19 | 267 | fits: 65 days to maturity, 267 available after Feb 8. | Aug 15 |
| Zucchini | Mar 22 | Apr 19–Apr 26 | 176 | two-plantings: Plant Apr 19 and again by Aug 4; both mature before Oct 12. | Aug 4 |
| Onion | Jan 11 | Mar 8–Mar 22 | 239 | fits: 100 days to maturity, 239 available after Mar 8. | — |
| Spinach | — | Feb 8–Mar 29 | 281 | two-plantings: Plant Feb 8 and again by Sep 23; both mature before Nov 16. | Sep 23 |
| Kale | Jan 25 | Mar 8–Mar 22 | 253 | two-plantings: Plant Mar 8 and again by Sep 8; both mature before Nov 16. | Sep 8 |
| Broccoli | Feb 8 | Mar 8–Mar 22 | 239 | fits: 80 days to maturity, 239 available after Mar 8. | Jul 31 |
| Cabbage | Feb 8 | Mar 8–Mar 22 | 253 | fits: 70 days to maturity, 253 available after Mar 8. | Aug 24 |
| Radish | — | Feb 8–May 3 | 267 | two-plantings: Plant Feb 8 and again by Sep 24; both mature before Nov 2. | Sep 24 |
| Beets | — | Feb 8–May 3 | 267 | two-plantings: Plant Feb 8 and again by Aug 25; both mature before Nov 2. | Aug 25 |
| Potatoes | — | Mar 22–Mar 29 | 225 | fits: 90 days to maturity, 225 available after Mar 22. | — |
| Garlic | — | Oct 26 | 309 | overwinter: Plant Oct 26 to Nov 16; harvest the following summer. | Nov 16 |
| Strawberry | — | Mar 1–Apr 26 | 260 | perennial: A perennial: plant Mar 1; it fruits from the following year and keeps producing for several years. | — |
| Corn | Mar 8 | Apr 12–Apr 19 | 176 | fits: 75 days to maturity, 176 available after Apr 12. | Jul 8 |
| Pumpkin | Mar 22 | Apr 19–Apr 19 | 169 | fits: 100 days to maturity, 169 available after Apr 19. | Jun 13 |
| Cauliflower | Feb 22 | Mar 29–Apr 12 | 218 | fits: 75 days to maturity, 218 available after Mar 29. | Aug 5 |
| Swiss Chard | Feb 8 | Mar 22–Mar 22 | 225 | two-plantings: Plant Mar 22 and again by Aug 25; both mature before Nov 2. | Aug 25 |
| Arugula | — | Feb 8–May 3 | 281 | two-plantings: Plant Feb 8 and again by Sep 23; both mature before Nov 16. | Sep 23 |
| Brussel Sprouts | Feb 8 | Mar 8–Mar 22 | 253 | fits: 100 days to maturity, 253 available after Mar 8. | Jul 25 |
| Butternut Squash | Mar 22 | Apr 19–Apr 26 | 169 | fits: 100 days to maturity, 169 available after Apr 19. | Jun 13 |
| Eggplant | Feb 15 | Apr 19–Apr 26 | 162 | fits: 70 days to maturity, 162 available after Apr 19. | Jul 6 |
| Okra | Mar 8 | Apr 12–Apr 19 | 183 | two-plantings: Plant Apr 12 and again by Aug 4; both mature before Oct 12. | Aug 4 |
| Basil | Mar 1 | Apr 26–Apr 26 | 169 | two-plantings: Plant Apr 26 and again by Jul 30; both mature before Oct 12. | Jul 30 |
| Cilantro | — | Mar 8–Mar 29 | 239 | two-plantings: Plant Mar 8 and again by Aug 30; both mature before Nov 2. | Aug 30 |
| Parsley | Jan 25 | Apr 12–Apr 19 | 204 | fits: 70 days to maturity, 204 available after Apr 12. | Aug 10 |
| Celery | Jan 25 | Apr 12–Apr 26 | 204 | fits: 120 days to maturity, 204 available after Apr 12. | Jun 21 |
| Scallions | Jan 25 | Mar 8–Mar 22 | 253 | two-plantings: Plant Mar 8 and again by Sep 3; both mature before Nov 16. | Sep 3 |
| Turnip | — | Mar 8–Mar 22 | 253 | two-plantings: Plant Mar 8 and again by Sep 13; both mature before Nov 16. | Sep 13 |
| Kohlrabi | — | Feb 22–Mar 8 | 267 | two-plantings: Plant Feb 22 and again by Sep 8; both mature before Nov 16. | Sep 8 |
| Bok Choy | Mar 8 | Mar 29–Apr 5 | 218 | two-plantings: Plant Mar 29 and again by Sep 4; both mature before Nov 2. | Sep 4 |
| Collards | Jan 25 | Mar 8–Mar 22 | 253 | two-plantings: Plant Mar 8 and again by Sep 3; both mature before Nov 16. | Sep 3 |
| Cantaloupe | Mar 22 | Apr 19–Apr 26 | 162 | fits: 85 days to maturity, 162 available after Apr 19. | Jun 21 |
| Chives | Jan 11 | Apr 12–Apr 19 | 218 | fits: 90 days to maturity, 218 available after Apr 12. | — |
| Dill | — | Feb 8–May 3 | 267 | two-plantings: Plant Feb 8 and again by Aug 25; both mature before Nov 2. | Aug 25 |
| Oregano | Jan 25 | Apr 12–Apr 19 | 218 | fits: 80 days to maturity, 218 available after Apr 12. | — |
| Rosemary | Jan 11 | Apr 12–Apr 19 | 204 | fits: 80 days to maturity, 204 available after Apr 12. | — |
| Sage | Feb 8 | Apr 12–Apr 19 | 218 | fits: 75 days to maturity, 218 available after Apr 12. | — |
| Thyme | Jan 25 | Apr 12–Apr 19 | 218 | fits: 90 days to maturity, 218 available after Apr 12. | — |
| Calendula | Feb 22 | Mar 22–Apr 5 | 225 | two-plantings: Plant Mar 22 and again by Aug 30; both mature before Nov 2. | Aug 30 |
| Cosmos | Mar 8 | Apr 5–Apr 19 | 190 | two-plantings: Plant Apr 5 and again by Jul 30; both mature before Oct 12. | Jul 30 |
| Lavender | Jan 11 | Apr 5–Apr 19 | 225 | fits: 90 days to maturity, 225 available after Apr 5. | — |
| Marigolds | Feb 22 | Apr 5–Apr 12 | 190 | two-plantings: Plant Apr 5 and again by Aug 9; both mature before Oct 12. | Aug 9 |
| Melons | Mar 22 | Apr 19–Apr 26 | 162 | fits: 85 days to maturity, 162 available after Apr 19. | Jun 21 |
| Mint | — | Apr 5–Apr 19 | 225 | fits: 90 days to maturity, 225 available after Apr 5. | — |
| Nasturtiums | Mar 8 | Apr 5–Apr 12 | 190 | two-plantings: Plant Apr 5 and again by Aug 4; both mature before Oct 12. | Aug 4 |
| Pole Beans | — | Apr 12–Apr 26 | 183 | fits: 65 days to maturity, 183 available after Apr 12. | Jul 25 |
| Spaghetti Squash | Mar 22 | Apr 19–Apr 26 | 169 | fits: 90 days to maturity, 169 available after Apr 19. | Jun 23 |
| Sunflowers | — | Apr 5–Apr 19 | 190 | fits: 70 days to maturity, 190 available after Apr 5. | Jul 20 |
| Tomatillos | Feb 8 | Apr 12–Apr 19 | 169 | fits: 75 days to maturity, 169 available after Apr 12. | Jul 1 |
| Watermelon | Mar 22 | Apr 12–Apr 19 | 169 | fits: 80 days to maturity, 169 available after Apr 12. | Jun 26 |
| Yellow Squash | Mar 22 | Apr 19–Apr 26 | 176 | two-plantings: Plant Apr 19 and again by Aug 4; both mature before Oct 12. | Aug 4 |
| Zinnias | Mar 8 | Apr 5–Apr 19 | 190 | two-plantings: Plant Apr 5 and again by Jul 30; both mature before Oct 12. | Jul 30 |
Month by month in Somerville
| Month | What to do |
|---|---|
| January | Start indoors: Chives (Jan 11), Lavender (Jan 11), Onion (Jan 11), Rosemary (Jan 11), Celery (Jan 25), Collards (Jan 25), +5 more. |
| February | Start indoors: Broccoli (Feb 8), Brussel Sprouts (Feb 8), Cabbage (Feb 8), Lettuce (Feb 8), Sage (Feb 8), Swiss Chard (Feb 8), +6 more. Direct sow from: Arugula (Feb 8), Beets (Feb 8), Dill (Feb 8), Peas (Feb 8), Radish (Feb 8), Spinach (Feb 8), +1 more. |
| March | Start indoors: Basil (Mar 1), Tomato (Mar 1), Bok Choy (Mar 8), Corn (Mar 8), Cosmos (Mar 8), Nasturtiums (Mar 8), +11 more. Direct sow from: Cilantro (Mar 8), Turnip (Mar 8), Carrots (Mar 15), Potatoes (Mar 22). Transplant from: Broccoli (Mar 8), Brussel Sprouts (Mar 8), Cabbage (Mar 8), Collards (Mar 8), Kale (Mar 8), Lettuce (Mar 8), +6 more. Plant: Strawberry (Mar 1). |
| April | Direct sow from: Sunflowers (Apr 5), Beans (Apr 12), Pole Beans (Apr 12). Transplant from: Cosmos (Apr 5), Lavender (Apr 5), Marigolds (Apr 5), Mint (Apr 5), Nasturtiums (Apr 5), Zinnias (Apr 5), +23 more. Last frost around April 5. |
| May | Frost has passed. Transplant tomatoes, peppers, and basil outdoors. Direct sow beans, cucumbers, squash, and zucchini. |
| June | Last sowing dates: Butternut Squash (Jun 13), Pumpkin (Jun 13), Cantaloupe (Jun 21), Celery (Jun 21), Melons (Jun 21), Spaghetti Squash (Jun 23), +2 more. |
| July | Last sowing dates: Pepper (Jul 1), Tomatillos (Jul 1), Eggplant (Jul 6), Corn (Jul 8), Sunflowers (Jul 20), Brussel Sprouts (Jul 25), +6 more. |
| August | Last sowing dates: Nasturtiums (Aug 4), Okra (Aug 4), Yellow Squash (Aug 4), Zucchini (Aug 4), Cauliflower (Aug 5), Beans (Aug 6), +10 more. |
| September | Last sowing dates: Collards (Sep 3), Scallions (Sep 3), Bok Choy (Sep 4), Lettuce (Sep 4), Kale (Sep 8), Kohlrabi (Sep 8), +4 more. |
| October | Direct sow from: Garlic (Oct 26). First frost around October 26. |
| November | Last sowing dates: Garlic (Nov 16). |
| 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 Somerville, TN (ZIP 38068)?
The median last spring frost date for Somerville, TN (ZIP code 38068) is around April 5. 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 23; one in ten it runs past April 17.
What is the first fall frost date in Somerville, TN?
The median first fall frost date for Somerville, TN is around October 26. 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 10 in the earliest one-in-ten years, so cover tomatoes and peppers from then.
How long is the growing season in Somerville, TN?
The frost-free growing season in Somerville is about 204 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 Somerville (204 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 Somerville, TN?
Somerville, TN is in USDA hardiness zone 8a (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 Somerville, TN?
Start tomatoes indoors Mar 1 and plant out Apr 19 in Somerville. The planner uses the local median last frost and this crop's indoor-start and transplant offsets.
How many plantings of lettuce fit in Somerville?
Two: plant Mar 8 and again by Sep 4; both mature before Nov 2.
When do I plant garlic in Somerville?
Oct 26 to Nov 16; it overwinters and is ready the following summer.
Can I get two tomato crops in Somerville?
Yes: plant out Apr 19 for a summer crop, and set out a second round of transplants by Jun 26 for a fall crop.
Which nearby ZIP has a longer season?
Arlington (ZIP 38002) has 222 frost-free days, 18 more than Somerville (ZIP 38068). See Arlington ZIP 38002 frost dates
Nearby and related
- Frost dates for Oakland, TN 38060 (10.1 mi)
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- Frost dates for Collierville, TN 38017 (22.3 mi)
- Frost dates for Brownsville, TN 38012 (24.4 mi)
- Frost dates for Cordova, TN 38016 (24.6 mi)
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