Frost Dates for Troy, MO 63379
Last spring frost April 21 · First fall frost October 10 · 172 frost-free days · USDA Zone 6b
ZIP 63379 has about 27,700 people.
Moderate season: 172 frost-free days. Spring frost risk spans April 5–May 6 (31 days). Fall frost risk spans September 27–October 24 (27 days).
Frost probability for 63379
| Frost | 10% | 50% | 90% |
|---|---|---|---|
| Spring (last frost) | May 6 | April 21 | April 5 |
| Fall (first frost) | September 27 | October 10 | October 24 |
Dates come from NOAA 1971–2000 freeze probabilities at ELSBERRY 1 S (25.1 km away); the 50% date is the median year.
Which crops fit a 172-day season in Troy
In Troy (172 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 17 | May 5–May 12 | 130 | fits: 80 days to maturity, 130 available after May 5. | Jun 10 |
| Pepper | Mar 10 | May 5–May 12 | 130 | fits: 75 days to maturity, 130 available after May 5. | Jun 15 |
| Lettuce | Feb 24 | Mar 24–Mar 31 | 207 | two-plantings: Plant Mar 24 and again by Aug 19; both mature before Oct 17. | Aug 19 |
| Carrots | — | Mar 31–Apr 7 | 214 | fits: 70 days to maturity, 214 available after Mar 31. | Aug 8 |
| Cucumber | Mar 31 | May 5–May 12 | 144 | two-plantings: Plant May 5 and again by Jul 14; both mature before Sep 26. | Jul 14 |
| Beans | — | Apr 28–May 12 | 158 | two-plantings: Plant Apr 28 and again by Jul 21; both mature before Oct 3. | Jul 21 |
| Peas | — | Feb 24–May 5 | 235 | fits: 65 days to maturity, 235 available after Feb 24. | Jul 30 |
| Zucchini | Apr 7 | May 5–May 12 | 144 | two-plantings: Plant May 5 and again by Jul 19; both mature before Sep 26. | Jul 19 |
| Onion | Jan 27 | Mar 24–Apr 7 | 207 | fits: 100 days to maturity, 207 available after Mar 24. | — |
| Spinach | — | Feb 24–Apr 14 | 249 | two-plantings: Plant Feb 24 and again by Sep 7; both mature before Oct 31. | Sep 7 |
| Kale | Feb 10 | Mar 24–Apr 7 | 221 | two-plantings: Plant Mar 24 and again by Aug 23; both mature before Oct 31. | Aug 23 |
| Broccoli | Feb 24 | Mar 24–Apr 7 | 207 | fits: 80 days to maturity, 207 available after Mar 24. | Jul 15 |
| Cabbage | Feb 24 | Mar 24–Apr 7 | 221 | fits: 70 days to maturity, 221 available after Mar 24. | Aug 8 |
| Radish | — | Feb 24–May 19 | 235 | two-plantings: Plant Feb 24 and again by Sep 8; both mature before Oct 17. | Sep 8 |
| Beets | — | Feb 24–May 19 | 235 | two-plantings: Plant Feb 24 and again by Aug 9; both mature before Oct 17. | Aug 9 |
| Potatoes | — | Apr 7–Apr 14 | 193 | fits: 90 days to maturity, 193 available after Apr 7. | — |
| Garlic | — | Oct 10 | 277 | overwinter: Plant Oct 10 to Oct 31; harvest the following summer. | Oct 31 |
| Strawberry | — | Mar 17–May 12 | 228 | perennial: A perennial: plant Mar 17; it fruits from the following year and keeps producing for several years. | — |
| Corn | Mar 24 | Apr 28–May 5 | 144 | fits: 75 days to maturity, 144 available after Apr 28. | Jun 22 |
| Pumpkin | Apr 7 | May 5–May 5 | 137 | fits: 100 days to maturity, 137 available after May 5. | May 28 |
| Cauliflower | Mar 10 | Apr 14–Apr 28 | 186 | fits: 75 days to maturity, 186 available after Apr 14. | Jul 20 |
| Swiss Chard | Feb 24 | Apr 7–Apr 7 | 193 | two-plantings: Plant Apr 7 and again by Aug 9; both mature before Oct 17. | Aug 9 |
| Arugula | — | Feb 24–May 19 | 249 | two-plantings: Plant Feb 24 and again by Sep 7; both mature before Oct 31. | Sep 7 |
| Brussel Sprouts | Feb 24 | Mar 24–Apr 7 | 221 | fits: 100 days to maturity, 221 available after Mar 24. | Jul 9 |
| Butternut Squash | Apr 7 | May 5–May 12 | 137 | fits: 100 days to maturity, 137 available after May 5. | May 28 |
| Eggplant | Mar 3 | May 5–May 12 | 130 | fits: 70 days to maturity, 130 available after May 5. | Jun 20 |
| Okra | Mar 24 | Apr 28–May 5 | 151 | two-plantings: Plant Apr 28 and again by Jul 19; both mature before Sep 26. | Jul 19 |
| Basil | Mar 17 | May 12–May 12 | 137 | two-plantings: Plant May 12 and again by Jul 14; both mature before Sep 26. | Jul 14 |
| Cilantro | — | Mar 24–Apr 14 | 207 | two-plantings: Plant Mar 24 and again by Aug 14; both mature before Oct 17. | Aug 14 |
| Parsley | Feb 10 | Apr 28–May 5 | 172 | fits: 70 days to maturity, 172 available after Apr 28. | Jul 25 |
| Celery | Feb 10 | Apr 28–May 12 | 172 | fits: 120 days to maturity, 172 available after Apr 28. | Jun 5 |
| Scallions | Feb 10 | Mar 24–Apr 7 | 221 | two-plantings: Plant Mar 24 and again by Aug 18; both mature before Oct 31. | Aug 18 |
| Turnip | — | Mar 24–Apr 7 | 221 | two-plantings: Plant Mar 24 and again by Aug 28; both mature before Oct 31. | Aug 28 |
| Kohlrabi | — | Mar 10–Mar 24 | 235 | two-plantings: Plant Mar 10 and again by Aug 23; both mature before Oct 31. | Aug 23 |
| Bok Choy | Mar 24 | Apr 14–Apr 21 | 186 | two-plantings: Plant Apr 14 and again by Aug 19; both mature before Oct 17. | Aug 19 |
| Collards | Feb 10 | Mar 24–Apr 7 | 221 | two-plantings: Plant Mar 24 and again by Aug 18; both mature before Oct 31. | Aug 18 |
| Cantaloupe | Apr 7 | May 5–May 12 | 130 | fits: 85 days to maturity, 130 available after May 5. | Jun 5 |
| Chives | Jan 27 | Apr 28–May 5 | 186 | fits: 90 days to maturity, 186 available after Apr 28. | — |
| Dill | — | Feb 24–May 19 | 235 | two-plantings: Plant Feb 24 and again by Aug 9; both mature before Oct 17. | Aug 9 |
| Oregano | Feb 10 | Apr 28–May 5 | 186 | fits: 80 days to maturity, 186 available after Apr 28. | — |
| Rosemary | Jan 27 | Apr 28–May 5 | 172 | fits: 80 days to maturity, 172 available after Apr 28. | — |
| Sage | Feb 24 | Apr 28–May 5 | 186 | fits: 75 days to maturity, 186 available after Apr 28. | — |
| Thyme | Feb 10 | Apr 28–May 5 | 186 | fits: 90 days to maturity, 186 available after Apr 28. | — |
| Calendula | Mar 10 | Apr 7–Apr 21 | 193 | two-plantings: Plant Apr 7 and again by Aug 14; both mature before Oct 17. | Aug 14 |
| Cosmos | Mar 24 | Apr 21–May 5 | 158 | two-plantings: Plant Apr 21 and again by Jul 14; both mature before Sep 26. | Jul 14 |
| Lavender | Jan 27 | Apr 21–May 5 | 193 | fits: 90 days to maturity, 193 available after Apr 21. | — |
| Marigolds | Mar 10 | Apr 21–Apr 28 | 158 | two-plantings: Plant Apr 21 and again by Jul 24; both mature before Sep 26. | Jul 24 |
| Melons | Apr 7 | May 5–May 12 | 130 | fits: 85 days to maturity, 130 available after May 5. | Jun 5 |
| Mint | — | Apr 21–May 5 | 193 | fits: 90 days to maturity, 193 available after Apr 21. | — |
| Nasturtiums | Mar 24 | Apr 21–Apr 28 | 158 | two-plantings: Plant Apr 21 and again by Jul 19; both mature before Sep 26. | Jul 19 |
| Pole Beans | — | Apr 28–May 12 | 151 | fits: 65 days to maturity, 151 available after Apr 28. | Jul 9 |
| Spaghetti Squash | Apr 7 | May 5–May 12 | 137 | fits: 90 days to maturity, 137 available after May 5. | Jun 7 |
| Sunflowers | — | Apr 21–May 5 | 158 | fits: 70 days to maturity, 158 available after Apr 21. | Jul 4 |
| Tomatillos | Feb 24 | Apr 28–May 5 | 137 | fits: 75 days to maturity, 137 available after Apr 28. | Jun 15 |
| Watermelon | Apr 7 | Apr 28–May 5 | 137 | fits: 80 days to maturity, 137 available after Apr 28. | Jun 10 |
| Yellow Squash | Apr 7 | May 5–May 12 | 144 | two-plantings: Plant May 5 and again by Jul 19; both mature before Sep 26. | Jul 19 |
| Zinnias | Mar 24 | Apr 21–May 5 | 158 | two-plantings: Plant Apr 21 and again by Jul 14; both mature before Sep 26. | Jul 14 |
Month by month in Troy
| Month | What to do |
|---|---|
| January | Start indoors: Chives (Jan 27), Lavender (Jan 27), Onion (Jan 27), Rosemary (Jan 27). |
| February | Start indoors: Celery (Feb 10), Collards (Feb 10), Kale (Feb 10), Oregano (Feb 10), Parsley (Feb 10), Scallions (Feb 10), +8 more. Direct sow from: Arugula (Feb 24), Beets (Feb 24), Dill (Feb 24), Peas (Feb 24), Radish (Feb 24), Spinach (Feb 24). |
| March | Start indoors: Eggplant (Mar 3), Calendula (Mar 10), Cauliflower (Mar 10), Marigolds (Mar 10), Pepper (Mar 10), Basil (Mar 17), +8 more. Direct sow from: Kohlrabi (Mar 10), Cilantro (Mar 24), Turnip (Mar 24), Carrots (Mar 31). Transplant from: Broccoli (Mar 24), Brussel Sprouts (Mar 24), Cabbage (Mar 24), Collards (Mar 24), Kale (Mar 24), Lettuce (Mar 24), +2 more. Plant: Strawberry (Mar 17). |
| April | Start indoors: Butternut Squash (Apr 7), Cantaloupe (Apr 7), Melons (Apr 7), Pumpkin (Apr 7), Spaghetti Squash (Apr 7), Watermelon (Apr 7), +2 more. Direct sow from: Potatoes (Apr 7), Sunflowers (Apr 21), Beans (Apr 28), Pole Beans (Apr 28). Transplant from: Calendula (Apr 7), Swiss Chard (Apr 7), Bok Choy (Apr 14), Cauliflower (Apr 14), Cosmos (Apr 21), Lavender (Apr 21), +15 more. Last frost around April 21. |
| May | Transplant from: Butternut Squash (May 5), Cantaloupe (May 5), Cucumber (May 5), Eggplant (May 5), Melons (May 5), Pepper (May 5), +6 more. Last sowing dates: Butternut Squash (May 28), Pumpkin (May 28). |
| June | Last sowing dates: Cantaloupe (Jun 5), Celery (Jun 5), Melons (Jun 5), Spaghetti Squash (Jun 7), Tomato (Jun 10), Watermelon (Jun 10), +4 more. |
| July | Last sowing dates: Sunflowers (Jul 4), Brussel Sprouts (Jul 9), Pole Beans (Jul 9), Basil (Jul 14), Cosmos (Jul 14), Cucumber (Jul 14), +11 more. |
| August | Last sowing dates: Cabbage (Aug 8), Carrots (Aug 8), Beets (Aug 9), Dill (Aug 9), Swiss Chard (Aug 9), Calendula (Aug 14), +8 more. |
| September | Last sowing dates: Arugula (Sep 7), Spinach (Sep 7), Radish (Sep 8). |
| October | Direct sow from: Garlic (Oct 10). First frost around October 10. Last sowing dates: Garlic (Oct 31). |
| November | Harvest remaining cold-hardy crops: kale, carrots, and beets. Plant garlic bulbs for next year. |
| 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 Troy, MO (ZIP 63379)?
The median last spring frost date for Troy, MO (ZIP code 63379) is around April 21. 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 5; one in ten it runs past May 6.
What is the first fall frost date in Troy, MO?
The median first fall frost date for Troy, MO is around October 10. 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 27 in the earliest one-in-ten years, so cover tomatoes and peppers from then.
How long is the growing season in Troy, MO?
The frost-free growing season in Troy is about 172 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 (172 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 Troy, MO?
Troy, MO is in USDA hardiness zone 6b (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, MO?
Start tomatoes indoors Mar 17 and plant out May 5 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 Mar 24 and again by Aug 19; both mature before Oct 17.
When do I plant garlic in Troy?
Oct 10 to Oct 31; it overwinters and is ready the following summer.
Which nearby ZIP has a longer season?
Wright City (ZIP 63390) has 179 frost-free days, 7 more than Troy (ZIP 63379). See Wright City ZIP 63390 frost dates
Nearby and related
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