Frost Dates for Martinsville, IN 46151
Last spring frost April 17 · First fall frost October 16 · 182 frost-free days · USDA Zone 6a
ZIP 46151 has about 32,400 people.
Long season: 182 frost-free days. Spring frost risk spans April 2–May 4 (32 days). Fall frost risk spans October 2–October 31 (29 days).
Frost probability for 46151
| Frost | 10% | 50% | 90% |
|---|---|---|---|
| Spring (last frost) | May 4 | April 17 | April 2 |
| Fall (first frost) | October 2 | October 16 | October 31 |
Dates come from NOAA 1971–2000 freeze probabilities at INDIANAPOLIS INTL AP (33.3 km away); the 50% date is the median year.
Which crops fit a 182-day season in Martinsville
In Martinsville (182 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 13 | May 1–May 8 | 140 | fits: 80 days to maturity, 140 available after May 1. | Jun 16 |
| Pepper | Mar 6 | May 1–May 8 | 140 | fits: 75 days to maturity, 140 available after May 1. | Jun 21 |
| Lettuce | Feb 20 | Mar 20–Mar 27 | 217 | two-plantings: Plant Mar 20 and again by Aug 25; both mature before Oct 23. | Aug 25 |
| Carrots | — | Mar 27–Apr 3 | 224 | fits: 70 days to maturity, 224 available after Mar 27. | Aug 14 |
| Cucumber | Mar 27 | May 1–May 8 | 154 | two-plantings: Plant May 1 and again by Jul 20; both mature before Oct 2. | Jul 20 |
| Beans | — | Apr 24–May 8 | 168 | two-plantings: Plant Apr 24 and again by Jul 27; both mature before Oct 9. | Jul 27 |
| Peas | — | Feb 20–May 1 | 245 | fits: 65 days to maturity, 245 available after Feb 20. | Aug 5 |
| Zucchini | Apr 3 | May 1–May 8 | 154 | two-plantings: Plant May 1 and again by Jul 25; both mature before Oct 2. | Jul 25 |
| Onion | Jan 23 | Mar 20–Apr 3 | 217 | fits: 100 days to maturity, 217 available after Mar 20. | — |
| Spinach | — | Feb 20–Apr 10 | 259 | two-plantings: Plant Feb 20 and again by Sep 13; both mature before Nov 6. | Sep 13 |
| Kale | Feb 6 | Mar 20–Apr 3 | 231 | two-plantings: Plant Mar 20 and again by Aug 29; both mature before Nov 6. | Aug 29 |
| Broccoli | Feb 20 | Mar 20–Apr 3 | 217 | fits: 80 days to maturity, 217 available after Mar 20. | Jul 21 |
| Cabbage | Feb 20 | Mar 20–Apr 3 | 231 | fits: 70 days to maturity, 231 available after Mar 20. | Aug 14 |
| Radish | — | Feb 20–May 15 | 245 | two-plantings: Plant Feb 20 and again by Sep 14; both mature before Oct 23. | Sep 14 |
| Beets | — | Feb 20–May 15 | 245 | two-plantings: Plant Feb 20 and again by Aug 15; both mature before Oct 23. | Aug 15 |
| Potatoes | — | Apr 3–Apr 10 | 203 | fits: 90 days to maturity, 203 available after Apr 3. | — |
| Garlic | — | Oct 16 | 287 | overwinter: Plant Oct 16 to Nov 6; harvest the following summer. | Nov 6 |
| Strawberry | — | Mar 13–May 8 | 238 | perennial: A perennial: plant Mar 13; it fruits from the following year and keeps producing for several years. | — |
| Corn | Mar 20 | Apr 24–May 1 | 154 | fits: 75 days to maturity, 154 available after Apr 24. | Jun 28 |
| Pumpkin | Apr 3 | May 1–May 1 | 147 | fits: 100 days to maturity, 147 available after May 1. | Jun 3 |
| Cauliflower | Mar 6 | Apr 10–Apr 24 | 196 | fits: 75 days to maturity, 196 available after Apr 10. | Jul 26 |
| Swiss Chard | Feb 20 | Apr 3–Apr 3 | 203 | two-plantings: Plant Apr 3 and again by Aug 15; both mature before Oct 23. | Aug 15 |
| Arugula | — | Feb 20–May 15 | 259 | two-plantings: Plant Feb 20 and again by Sep 13; both mature before Nov 6. | Sep 13 |
| Brussel Sprouts | Feb 20 | Mar 20–Apr 3 | 231 | fits: 100 days to maturity, 231 available after Mar 20. | Jul 15 |
| Butternut Squash | Apr 3 | May 1–May 8 | 147 | fits: 100 days to maturity, 147 available after May 1. | Jun 3 |
| Eggplant | Feb 27 | May 1–May 8 | 140 | fits: 70 days to maturity, 140 available after May 1. | Jun 26 |
| Okra | Mar 20 | Apr 24–May 1 | 161 | two-plantings: Plant Apr 24 and again by Jul 25; both mature before Oct 2. | Jul 25 |
| Basil | Mar 13 | May 8–May 8 | 147 | two-plantings: Plant May 8 and again by Jul 20; both mature before Oct 2. | Jul 20 |
| Cilantro | — | Mar 20–Apr 10 | 217 | two-plantings: Plant Mar 20 and again by Aug 20; both mature before Oct 23. | Aug 20 |
| Parsley | Feb 6 | Apr 24–May 1 | 182 | fits: 70 days to maturity, 182 available after Apr 24. | Jul 31 |
| Celery | Feb 6 | Apr 24–May 8 | 182 | fits: 120 days to maturity, 182 available after Apr 24. | Jun 11 |
| Scallions | Feb 6 | Mar 20–Apr 3 | 231 | two-plantings: Plant Mar 20 and again by Aug 24; both mature before Nov 6. | Aug 24 |
| Turnip | — | Mar 20–Apr 3 | 231 | two-plantings: Plant Mar 20 and again by Sep 3; both mature before Nov 6. | Sep 3 |
| Kohlrabi | — | Mar 6–Mar 20 | 245 | two-plantings: Plant Mar 6 and again by Aug 29; both mature before Nov 6. | Aug 29 |
| Bok Choy | Mar 20 | Apr 10–Apr 17 | 196 | two-plantings: Plant Apr 10 and again by Aug 25; both mature before Oct 23. | Aug 25 |
| Collards | Feb 6 | Mar 20–Apr 3 | 231 | two-plantings: Plant Mar 20 and again by Aug 24; both mature before Nov 6. | Aug 24 |
| Cantaloupe | Apr 3 | May 1–May 8 | 140 | fits: 85 days to maturity, 140 available after May 1. | Jun 11 |
| Chives | Jan 23 | Apr 24–May 1 | 196 | fits: 90 days to maturity, 196 available after Apr 24. | — |
| Dill | — | Feb 20–May 15 | 245 | two-plantings: Plant Feb 20 and again by Aug 15; both mature before Oct 23. | Aug 15 |
| Oregano | Feb 6 | Apr 24–May 1 | 196 | fits: 80 days to maturity, 196 available after Apr 24. | — |
| Rosemary | Jan 23 | Apr 24–May 1 | 182 | fits: 80 days to maturity, 182 available after Apr 24. | — |
| Sage | Feb 20 | Apr 24–May 1 | 196 | fits: 75 days to maturity, 196 available after Apr 24. | — |
| Thyme | Feb 6 | Apr 24–May 1 | 196 | fits: 90 days to maturity, 196 available after Apr 24. | — |
| Calendula | Mar 6 | Apr 3–Apr 17 | 203 | two-plantings: Plant Apr 3 and again by Aug 20; both mature before Oct 23. | Aug 20 |
| Cosmos | Mar 20 | Apr 17–May 1 | 168 | two-plantings: Plant Apr 17 and again by Jul 20; both mature before Oct 2. | Jul 20 |
| Lavender | Jan 23 | Apr 17–May 1 | 203 | fits: 90 days to maturity, 203 available after Apr 17. | — |
| Marigolds | Mar 6 | Apr 17–Apr 24 | 168 | two-plantings: Plant Apr 17 and again by Jul 30; both mature before Oct 2. | Jul 30 |
| Melons | Apr 3 | May 1–May 8 | 140 | fits: 85 days to maturity, 140 available after May 1. | Jun 11 |
| Mint | — | Apr 17–May 1 | 203 | fits: 90 days to maturity, 203 available after Apr 17. | — |
| Nasturtiums | Mar 20 | Apr 17–Apr 24 | 168 | two-plantings: Plant Apr 17 and again by Jul 25; both mature before Oct 2. | Jul 25 |
| Pole Beans | — | Apr 24–May 8 | 161 | fits: 65 days to maturity, 161 available after Apr 24. | Jul 15 |
| Spaghetti Squash | Apr 3 | May 1–May 8 | 147 | fits: 90 days to maturity, 147 available after May 1. | Jun 13 |
| Sunflowers | — | Apr 17–May 1 | 168 | fits: 70 days to maturity, 168 available after Apr 17. | Jul 10 |
| Tomatillos | Feb 20 | Apr 24–May 1 | 147 | fits: 75 days to maturity, 147 available after Apr 24. | Jun 21 |
| Watermelon | Apr 3 | Apr 24–May 1 | 147 | fits: 80 days to maturity, 147 available after Apr 24. | Jun 16 |
| Yellow Squash | Apr 3 | May 1–May 8 | 154 | two-plantings: Plant May 1 and again by Jul 25; both mature before Oct 2. | Jul 25 |
| Zinnias | Mar 20 | Apr 17–May 1 | 168 | two-plantings: Plant Apr 17 and again by Jul 20; both mature before Oct 2. | Jul 20 |
Month by month in Martinsville
| Month | What to do |
|---|---|
| January | Start indoors: Chives (Jan 23), Lavender (Jan 23), Onion (Jan 23), Rosemary (Jan 23). |
| February | Start indoors: Celery (Feb 6), Collards (Feb 6), Kale (Feb 6), Oregano (Feb 6), Parsley (Feb 6), Scallions (Feb 6), +9 more. Direct sow from: Arugula (Feb 20), Beets (Feb 20), Dill (Feb 20), Peas (Feb 20), Radish (Feb 20), Spinach (Feb 20). |
| March | Start indoors: Calendula (Mar 6), Cauliflower (Mar 6), Marigolds (Mar 6), Pepper (Mar 6), Basil (Mar 13), Tomato (Mar 13), +7 more. Direct sow from: Kohlrabi (Mar 6), Cilantro (Mar 20), Turnip (Mar 20), Carrots (Mar 27). Transplant from: Broccoli (Mar 20), Brussel Sprouts (Mar 20), Cabbage (Mar 20), Collards (Mar 20), Kale (Mar 20), Lettuce (Mar 20), +2 more. Plant: Strawberry (Mar 13). |
| April | Start indoors: Butternut Squash (Apr 3), Cantaloupe (Apr 3), Melons (Apr 3), Pumpkin (Apr 3), Spaghetti Squash (Apr 3), Watermelon (Apr 3), +2 more. Direct sow from: Potatoes (Apr 3), Sunflowers (Apr 17), Beans (Apr 24), Pole Beans (Apr 24). Transplant from: Calendula (Apr 3), Swiss Chard (Apr 3), Bok Choy (Apr 10), Cauliflower (Apr 10), Cosmos (Apr 17), Lavender (Apr 17), +15 more. Last frost around April 17. |
| May | Transplant from: Butternut Squash (May 1), Cantaloupe (May 1), Cucumber (May 1), Eggplant (May 1), Melons (May 1), Pepper (May 1), +6 more. |
| June | Last sowing dates: Butternut Squash (Jun 3), Pumpkin (Jun 3), Cantaloupe (Jun 11), Celery (Jun 11), Melons (Jun 11), Spaghetti Squash (Jun 13), +6 more. |
| July | Last sowing dates: Sunflowers (Jul 10), Brussel Sprouts (Jul 15), Pole Beans (Jul 15), Basil (Jul 20), Cosmos (Jul 20), Cucumber (Jul 20), +10 more. |
| August | Last sowing dates: Peas (Aug 5), Cabbage (Aug 14), Carrots (Aug 14), Beets (Aug 15), Dill (Aug 15), Swiss Chard (Aug 15), +8 more. |
| September | Last sowing dates: Turnip (Sep 3), Arugula (Sep 13), Spinach (Sep 13), Radish (Sep 14). |
| October | Direct sow from: Garlic (Oct 16). First frost around October 16. |
| November | Last sowing dates: Garlic (Nov 6). |
| 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 Martinsville, IN (ZIP 46151)?
The median last spring frost date for Martinsville, IN (ZIP code 46151) is around April 17. 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 2; one in ten it runs past May 4.
What is the first fall frost date in Martinsville, IN?
The median first fall frost date for Martinsville, IN is around October 16. 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 2 in the earliest one-in-ten years, so cover tomatoes and peppers from then.
How long is the growing season in Martinsville, IN?
The frost-free growing season in Martinsville is about 182 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 Martinsville (182 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 Martinsville, IN?
Martinsville, IN is in USDA hardiness zone 6a (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 Martinsville, IN?
Start tomatoes indoors Mar 13 and plant out May 1 in Martinsville. The planner uses the local median last frost and this crop's indoor-start and transplant offsets.
How many plantings of lettuce fit in Martinsville?
Two: plant Mar 20 and again by Aug 25; both mature before Oct 23.
When do I plant garlic in Martinsville?
Oct 16 to Nov 6; it overwinters and is ready the following summer.
Can I get two tomato crops in Martinsville?
Yes: plant out May 1 for a summer crop, and set out a second round of transplants by Jun 16 for a fall crop.
Nearby and related
- Frost dates for Mooresville, IN 46158 (9.7 mi)
- Frost dates for Bargersville, IN 46106 (12.7 mi)
- Frost dates for Camby, IN 46113 (14.5 mi)
- Frost dates for Plainfield, IN 46168 (16.8 mi)
- Frost dates for Greenwood, IN 46143 (19.6 mi)
- When to plant in IN
- When to plant Peppers in IN
- When to plant Cucumbers in IN
- When to plant Zucchini in IN
- When to plant Butternut Squash in IN
- When to plant Basil in IN
- When to plant Sweet Corn in IN
- Look up another ZIP