Frost Dates for Troy, AL 36081
Last spring frost March 15 · First fall frost November 15 · 245 frost-free days · USDA Zone 8b
ZIP 36081 has about 15,100 people, the largest of 3 ZIP codes in Troy.
Very long season: 245 frost-free days. Spring frost risk spans February 26–April 3 (36 days). Fall frost risk spans October 27–December 3 (37 days).
Frost probability for 36081
| Frost | 10% | 50% | 90% |
|---|---|---|---|
| Spring (last frost) | April 3 | March 15 | February 26 |
| Fall (first frost) | October 27 | November 15 | December 3 |
Dates come from NOAA 1971–2000 freeze probabilities at TROY (13.1 km away); the 50% date is the median year.
Frost dates by ZIP code in Troy, AL
| ZIP | Last spring frost (50%) | First fall frost (50%) | Zone |
|---|---|---|---|
| 36081 | March 15 | November 15 | 8b |
| 36079 | March 15 | November 15 | 8b |
| 36082 | March 15 | November 15 | 8b |
Which crops fit a 245-day season in Troy
In Troy (245 frost-free days, a very 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 | Feb 8 | Mar 29–Apr 5 | 203 | fits: 80 days to maturity, 203 available after Mar 29. | Jul 16 |
| Pepper | Feb 1 | Mar 29–Apr 5 | 203 | fits: 75 days to maturity, 203 available after Mar 29. | Jul 21 |
| Lettuce | Jan 18 | Feb 15–Feb 22 | 280 | two-plantings: Plant Feb 15 and again by Sep 24; both mature before Nov 22. | Sep 24 |
| Carrots | — | Feb 22–Mar 1 | 287 | fits: 70 days to maturity, 287 available after Feb 22. | Sep 13 |
| Cucumber | Feb 22 | Mar 29–Apr 5 | 217 | two-plantings: Plant Mar 29 and again by Aug 19; both mature before Nov 1. | Aug 19 |
| Beans | — | Mar 22–Apr 5 | 231 | two-plantings: Plant Mar 22 and again by Aug 26; both mature before Nov 8. | Aug 26 |
| Peas | — | Jan 18–Mar 29 | 308 | fits: 65 days to maturity, 308 available after Jan 18. | Sep 4 |
| Zucchini | Mar 1 | Mar 29–Apr 5 | 217 | two-plantings: Plant Mar 29 and again by Aug 24; both mature before Nov 1. | Aug 24 |
| Onion | Dec 21 | Feb 15–Mar 1 | 280 | fits: 100 days to maturity, 280 available after Feb 15. | — |
| Spinach | — | Jan 18–Mar 8 | 322 | two-plantings: Plant Jan 18 and again by Oct 13; both mature before Dec 6. | Oct 13 |
| Kale | Jan 4 | Feb 15–Mar 1 | 294 | two-plantings: Plant Feb 15 and again by Sep 28; both mature before Dec 6. | Sep 28 |
| Broccoli | Jan 18 | Feb 15–Mar 1 | 280 | fits: 80 days to maturity, 280 available after Feb 15. | Aug 20 |
| Cabbage | Jan 18 | Feb 15–Mar 1 | 294 | fits: 70 days to maturity, 294 available after Feb 15. | Sep 13 |
| Radish | — | Jan 18–Apr 12 | 308 | two-plantings: Plant Jan 18 and again by Oct 14; both mature before Nov 22. | Oct 14 |
| Beets | — | Jan 18–Apr 12 | 308 | two-plantings: Plant Jan 18 and again by Sep 14; both mature before Nov 22. | Sep 14 |
| Potatoes | — | Mar 1–Mar 8 | 266 | fits: 90 days to maturity, 266 available after Mar 1. | — |
| Garlic | — | Nov 15 | 350 | overwinter: Plant Nov 15 to Dec 6; harvest the following summer. | Dec 6 |
| Strawberry | — | Feb 8–Apr 5 | 301 | perennial: A perennial: plant Feb 8; it fruits from the following year and keeps producing for several years. | — |
| Corn | Feb 15 | Mar 22–Mar 29 | 217 | fits: 75 days to maturity, 217 available after Mar 22. | Jul 28 |
| Pumpkin | Mar 1 | Mar 29–Mar 29 | 210 | fits: 100 days to maturity, 210 available after Mar 29. | Jul 3 |
| Cauliflower | Feb 1 | Mar 8–Mar 22 | 259 | fits: 75 days to maturity, 259 available after Mar 8. | Aug 25 |
| Swiss Chard | Jan 18 | Mar 1–Mar 1 | 266 | two-plantings: Plant Mar 1 and again by Sep 14; both mature before Nov 22. | Sep 14 |
| Arugula | — | Jan 18–Apr 12 | 322 | two-plantings: Plant Jan 18 and again by Oct 13; both mature before Dec 6. | Oct 13 |
| Brussel Sprouts | Jan 18 | Feb 15–Mar 1 | 294 | fits: 100 days to maturity, 294 available after Feb 15. | Aug 14 |
| Butternut Squash | Mar 1 | Mar 29–Apr 5 | 210 | fits: 100 days to maturity, 210 available after Mar 29. | Jul 3 |
| Eggplant | Jan 25 | Mar 29–Apr 5 | 203 | fits: 70 days to maturity, 203 available after Mar 29. | Jul 26 |
| Okra | Feb 15 | Mar 22–Mar 29 | 224 | two-plantings: Plant Mar 22 and again by Aug 24; both mature before Nov 1. | Aug 24 |
| Basil | Feb 8 | Apr 5–Apr 5 | 210 | two-plantings: Plant Apr 5 and again by Aug 19; both mature before Nov 1. | Aug 19 |
| Cilantro | — | Feb 15–Mar 8 | 280 | two-plantings: Plant Feb 15 and again by Sep 19; both mature before Nov 22. | Sep 19 |
| Parsley | Jan 4 | Mar 22–Mar 29 | 245 | fits: 70 days to maturity, 245 available after Mar 22. | Aug 30 |
| Celery | Jan 4 | Mar 22–Apr 5 | 245 | fits: 120 days to maturity, 245 available after Mar 22. | Jul 11 |
| Scallions | Jan 4 | Feb 15–Mar 1 | 294 | two-plantings: Plant Feb 15 and again by Sep 23; both mature before Dec 6. | Sep 23 |
| Turnip | — | Feb 15–Mar 1 | 294 | two-plantings: Plant Feb 15 and again by Oct 3; both mature before Dec 6. | Oct 3 |
| Kohlrabi | — | Feb 1–Feb 15 | 308 | two-plantings: Plant Feb 1 and again by Sep 28; both mature before Dec 6. | Sep 28 |
| Bok Choy | Feb 15 | Mar 8–Mar 15 | 259 | two-plantings: Plant Mar 8 and again by Sep 24; both mature before Nov 22. | Sep 24 |
| Collards | Jan 4 | Feb 15–Mar 1 | 294 | two-plantings: Plant Feb 15 and again by Sep 23; both mature before Dec 6. | Sep 23 |
| Cantaloupe | Mar 1 | Mar 29–Apr 5 | 203 | fits: 85 days to maturity, 203 available after Mar 29. | Jul 11 |
| Chives | Dec 21 | Mar 22–Mar 29 | 259 | fits: 90 days to maturity, 259 available after Mar 22. | — |
| Dill | — | Jan 18–Apr 12 | 308 | two-plantings: Plant Jan 18 and again by Sep 14; both mature before Nov 22. | Sep 14 |
| Oregano | Jan 4 | Mar 22–Mar 29 | 259 | fits: 80 days to maturity, 259 available after Mar 22. | — |
| Rosemary | Dec 21 | Mar 22–Mar 29 | 245 | fits: 80 days to maturity, 245 available after Mar 22. | — |
| Sage | Jan 18 | Mar 22–Mar 29 | 259 | fits: 75 days to maturity, 259 available after Mar 22. | — |
| Thyme | Jan 4 | Mar 22–Mar 29 | 259 | fits: 90 days to maturity, 259 available after Mar 22. | — |
| Calendula | Feb 1 | Mar 1–Mar 15 | 266 | two-plantings: Plant Mar 1 and again by Sep 19; both mature before Nov 22. | Sep 19 |
| Cosmos | Feb 15 | Mar 15–Mar 29 | 231 | two-plantings: Plant Mar 15 and again by Aug 19; both mature before Nov 1. | Aug 19 |
| Lavender | Dec 21 | Mar 15–Mar 29 | 266 | fits: 90 days to maturity, 266 available after Mar 15. | — |
| Marigolds | Feb 1 | Mar 15–Mar 22 | 231 | two-plantings: Plant Mar 15 and again by Aug 29; both mature before Nov 1. | Aug 29 |
| Melons | Mar 1 | Mar 29–Apr 5 | 203 | fits: 85 days to maturity, 203 available after Mar 29. | Jul 11 |
| Mint | — | Mar 15–Mar 29 | 266 | fits: 90 days to maturity, 266 available after Mar 15. | — |
| Nasturtiums | Feb 15 | Mar 15–Mar 22 | 231 | two-plantings: Plant Mar 15 and again by Aug 24; both mature before Nov 1. | Aug 24 |
| Pole Beans | — | Mar 22–Apr 5 | 224 | fits: 65 days to maturity, 224 available after Mar 22. | Aug 14 |
| Spaghetti Squash | Mar 1 | Mar 29–Apr 5 | 210 | fits: 90 days to maturity, 210 available after Mar 29. | Jul 13 |
| Sunflowers | — | Mar 15–Mar 29 | 231 | fits: 70 days to maturity, 231 available after Mar 15. | Aug 9 |
| Tomatillos | Jan 18 | Mar 22–Mar 29 | 210 | fits: 75 days to maturity, 210 available after Mar 22. | Jul 21 |
| Watermelon | Mar 1 | Mar 22–Mar 29 | 210 | fits: 80 days to maturity, 210 available after Mar 22. | Jul 16 |
| Yellow Squash | Mar 1 | Mar 29–Apr 5 | 217 | two-plantings: Plant Mar 29 and again by Aug 24; both mature before Nov 1. | Aug 24 |
| Zinnias | Feb 15 | Mar 15–Mar 29 | 231 | two-plantings: Plant Mar 15 and again by Aug 19; both mature before Nov 1. | Aug 19 |
Month by month in Troy
| Month | What to do |
|---|---|
| January | Start indoors: Celery (Jan 4), Collards (Jan 4), Kale (Jan 4), Oregano (Jan 4), Parsley (Jan 4), Scallions (Jan 4), +9 more. Direct sow from: Arugula (Jan 18), Beets (Jan 18), Dill (Jan 18), Peas (Jan 18), Radish (Jan 18), Spinach (Jan 18). |
| February | Start indoors: Calendula (Feb 1), Cauliflower (Feb 1), Marigolds (Feb 1), Pepper (Feb 1), Basil (Feb 8), Tomato (Feb 8), +7 more. Direct sow from: Kohlrabi (Feb 1), Cilantro (Feb 15), Turnip (Feb 15), Carrots (Feb 22). Transplant from: Broccoli (Feb 15), Brussel Sprouts (Feb 15), Cabbage (Feb 15), Collards (Feb 15), Kale (Feb 15), Lettuce (Feb 15), +2 more. Plant: Strawberry (Feb 8). |
| March | Start indoors: Butternut Squash (Mar 1), Cantaloupe (Mar 1), Melons (Mar 1), Pumpkin (Mar 1), Spaghetti Squash (Mar 1), Watermelon (Mar 1), +2 more. Direct sow from: Potatoes (Mar 1), Sunflowers (Mar 15), Beans (Mar 22), Pole Beans (Mar 22). Transplant from: Calendula (Mar 1), Swiss Chard (Mar 1), Bok Choy (Mar 8), Cauliflower (Mar 8), Cosmos (Mar 15), Lavender (Mar 15), +26 more. Last frost around March 15. |
| April | Transplant from: Basil (Apr 5). |
| May | Succession plant lettuce and greens. Keep beds weeded and watered consistently. |
| June | Harvest regularly to encourage production. Monitor for pests and disease. |
| July | Last sowing dates: Butternut Squash (Jul 3), Pumpkin (Jul 3), Cantaloupe (Jul 11), Celery (Jul 11), Melons (Jul 11), Spaghetti Squash (Jul 13), +6 more. |
| August | Last sowing dates: Sunflowers (Aug 9), Brussel Sprouts (Aug 14), Pole Beans (Aug 14), Basil (Aug 19), Cosmos (Aug 19), Cucumber (Aug 19), +10 more. |
| September | Last sowing dates: Peas (Sep 4), Cabbage (Sep 13), Carrots (Sep 13), Beets (Sep 14), Dill (Sep 14), Swiss Chard (Sep 14), +8 more. |
| October | Last sowing dates: Turnip (Oct 3), Arugula (Oct 13), Spinach (Oct 13), Radish (Oct 14). |
| November | Direct sow from: Garlic (Nov 15). First frost around November 15. |
| December | Start indoors: Chives (Dec 21), Lavender (Dec 21), Onion (Dec 21), Rosemary (Dec 21). Last sowing dates: Garlic (Dec 6). |
Frequently Asked Questions
What is the last frost date for Troy, AL (ZIP 36081)?
The median last spring frost date for Troy, AL (ZIP code 36081) is around March 15. 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 February 26; one in ten it runs past April 3.
What is the first fall frost date in Troy, AL?
The median first fall frost date for Troy, AL is around November 15. 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 27 in the earliest one-in-ten years, so cover tomatoes and peppers from then.
How long is the growing season in Troy, AL?
The frost-free growing season in Troy is about 245 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 Troy (245 frost-free days, a very long season), 30 of 56 planner crops fit outright, 25 get two plantings, 1 crop is perennial.
What USDA hardiness zone is Troy, AL?
Troy, AL is in USDA hardiness zone 8b (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 Troy, AL?
Start tomatoes indoors Feb 8 and plant out Mar 29 in Troy. The planner uses the local median last frost and this crop's indoor-start and transplant offsets.
How many plantings of lettuce fit in Troy?
Two: plant Feb 15 and again by Sep 24; both mature before Nov 22.
When do I plant garlic in Troy?
Nov 15 to Dec 6; it overwinters and is ready the following summer.
Can I get two tomato crops in Troy?
Yes: plant out Mar 29 for a summer crop, and set out a second round of transplants by Jul 16 for a fall crop.
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