Frost Dates for Marshfield, WI 54449
Last spring frost May 13 · First fall frost September 25 · 135 frost-free days · USDA Zone 4b
ZIP 54449 has about 26,200 people.
Moderate season: 135 frost-free days. Spring frost risk spans April 30–May 27 (27 days). Fall frost risk spans September 14–October 6 (22 days).
Frost probability for 54449
| Frost | 10% | 50% | 90% |
|---|---|---|---|
| Spring (last frost) | May 27 | May 13 | April 30 |
| Fall (first frost) | September 14 | September 25 | October 6 |
Dates come from NOAA 1971–2000 freeze probabilities at WISCONSIN RAPIDS (41.8 km away); the 50% date is the median year.
Which crops fit a 135-day season in Marshfield
In Marshfield (135 frost-free days, a moderate season), 39 of 56 planner crops fit outright, 16 get two plantings, 1 crop is perennial.
| Crop | Start indoors | Plant out / sow | Days you have | Verdict | Last sow date |
|---|---|---|---|---|---|
| Tomato | Apr 8 | May 27–Jun 3 | 93 | fits: 80 days to maturity, 93 available after May 27. | — |
| Pepper | Apr 1 | May 27–Jun 3 | 93 | fits: 75 days to maturity, 93 available after May 27. | May 31 |
| Lettuce | Mar 18 | Apr 15–Apr 22 | 170 | two-plantings: Plant Apr 15 and again by Aug 4; both mature before Oct 2. | Aug 4 |
| Carrots | — | Apr 22–Apr 29 | 177 | fits: 70 days to maturity, 177 available after Apr 22. | Jul 24 |
| Cucumber | Apr 22 | May 27–Jun 3 | 107 | fits: 60 days to maturity, 107 available after May 27. | Jun 29 |
| Beans | — | May 20–Jun 3 | 121 | fits: 60 days to maturity, 121 available after May 20. | Jul 6 |
| Peas | — | Mar 18–May 27 | 198 | fits: 65 days to maturity, 198 available after Mar 18. | Jul 15 |
| Zucchini | Apr 29 | May 27–Jun 3 | 107 | fits: 55 days to maturity, 107 available after May 27. | Jul 4 |
| Onion | Feb 18 | Apr 15–Apr 29 | 170 | fits: 100 days to maturity, 170 available after Apr 15. | — |
| Spinach | — | Mar 18–May 6 | 212 | two-plantings: Plant Mar 18 and again by Aug 23; both mature before Oct 16. | Aug 23 |
| Kale | Mar 4 | Apr 15–Apr 29 | 184 | two-plantings: Plant Apr 15 and again by Aug 8; both mature before Oct 16. | Aug 8 |
| Broccoli | Mar 18 | Apr 15–Apr 29 | 170 | fits: 80 days to maturity, 170 available after Apr 15. | Jun 30 |
| Cabbage | Mar 18 | Apr 15–Apr 29 | 184 | fits: 70 days to maturity, 184 available after Apr 15. | Jul 24 |
| Radish | — | Mar 18–Jun 10 | 198 | two-plantings: Plant Mar 18 and again by Aug 24; both mature before Oct 2. | Aug 24 |
| Beets | — | Mar 18–Jun 10 | 198 | two-plantings: Plant Mar 18 and again by Jul 25; both mature before Oct 2. | Jul 25 |
| Potatoes | — | Apr 29–May 6 | 156 | fits: 90 days to maturity, 156 available after Apr 29. | — |
| Garlic | — | Sep 25 | 240 | overwinter: Plant Sep 25 to Oct 16; harvest the following summer. | Oct 16 |
| Strawberry | — | Apr 8–Jun 3 | 191 | perennial: A perennial: plant Apr 8; it fruits from the following year and keeps producing for several years. | — |
| Corn | Apr 15 | May 20–May 27 | 107 | fits: 75 days to maturity, 107 available after May 20. | Jun 7 |
| Pumpkin | Apr 29 | May 27–May 27 | 100 | fits: 100 days to maturity, 100 available after May 27. | — |
| Cauliflower | Apr 1 | May 6–May 20 | 149 | fits: 75 days to maturity, 149 available after May 6. | Jul 5 |
| Swiss Chard | Mar 18 | Apr 29–Apr 29 | 156 | two-plantings: Plant Apr 29 and again by Jul 25; both mature before Oct 2. | Jul 25 |
| Arugula | — | Mar 18–Jun 10 | 212 | two-plantings: Plant Mar 18 and again by Aug 23; both mature before Oct 16. | Aug 23 |
| Brussel Sprouts | Mar 18 | Apr 15–Apr 29 | 184 | fits: 100 days to maturity, 184 available after Apr 15. | Jun 24 |
| Butternut Squash | Apr 29 | May 27–Jun 3 | 100 | fits: 100 days to maturity, 100 available after May 27. | — |
| Eggplant | Mar 25 | May 27–Jun 3 | 93 | fits: 70 days to maturity, 93 available after May 27. | Jun 5 |
| Okra | Apr 15 | May 20–May 27 | 114 | fits: 55 days to maturity, 114 available after May 20. | Jul 4 |
| Basil | Apr 8 | Jun 3–Jun 3 | 100 | fits: 60 days to maturity, 100 available after Jun 3. | Jun 29 |
| Cilantro | — | Apr 15–May 6 | 170 | two-plantings: Plant Apr 15 and again by Jul 30; both mature before Oct 2. | Jul 30 |
| Parsley | Mar 4 | May 20–May 27 | 135 | fits: 70 days to maturity, 135 available after May 20. | Jul 10 |
| Celery | Mar 4 | May 20–Jun 3 | 135 | fits: 120 days to maturity, 135 available after May 20. | May 21 |
| Scallions | Mar 4 | Apr 15–Apr 29 | 184 | two-plantings: Plant Apr 15 and again by Aug 3; both mature before Oct 16. | Aug 3 |
| Turnip | — | Apr 15–Apr 29 | 184 | two-plantings: Plant Apr 15 and again by Aug 13; both mature before Oct 16. | Aug 13 |
| Kohlrabi | — | Apr 1–Apr 15 | 198 | two-plantings: Plant Apr 1 and again by Aug 8; both mature before Oct 16. | Aug 8 |
| Bok Choy | Apr 15 | May 6–May 13 | 149 | two-plantings: Plant May 6 and again by Aug 4; both mature before Oct 2. | Aug 4 |
| Collards | Mar 4 | Apr 15–Apr 29 | 184 | two-plantings: Plant Apr 15 and again by Aug 3; both mature before Oct 16. | Aug 3 |
| Cantaloupe | Apr 29 | May 27–Jun 3 | 93 | fits: 85 days to maturity, 93 available after May 27. | — |
| Chives | Feb 18 | May 20–May 27 | 149 | fits: 90 days to maturity, 149 available after May 20. | — |
| Dill | — | Mar 18–Jun 10 | 198 | two-plantings: Plant Mar 18 and again by Jul 25; both mature before Oct 2. | Jul 25 |
| Oregano | Mar 4 | May 20–May 27 | 149 | fits: 80 days to maturity, 149 available after May 20. | — |
| Rosemary | Feb 18 | May 20–May 27 | 135 | fits: 80 days to maturity, 135 available after May 20. | — |
| Sage | Mar 18 | May 20–May 27 | 149 | fits: 75 days to maturity, 149 available after May 20. | — |
| Thyme | Mar 4 | May 20–May 27 | 149 | fits: 90 days to maturity, 149 available after May 20. | — |
| Calendula | Apr 1 | Apr 29–May 13 | 156 | two-plantings: Plant Apr 29 and again by Jul 30; both mature before Oct 2. | Jul 30 |
| Cosmos | Apr 15 | May 13–May 27 | 121 | fits: 60 days to maturity, 121 available after May 13. | Jun 29 |
| Lavender | Feb 18 | May 13–May 27 | 156 | fits: 90 days to maturity, 156 available after May 13. | — |
| Marigolds | Apr 1 | May 13–May 20 | 121 | two-plantings: Plant May 13 and again by Jul 9; both mature before Sep 11. | Jul 9 |
| Melons | Apr 29 | May 27–Jun 3 | 93 | fits: 85 days to maturity, 93 available after May 27. | — |
| Mint | — | May 13–May 27 | 156 | fits: 90 days to maturity, 156 available after May 13. | — |
| Nasturtiums | Apr 15 | May 13–May 20 | 121 | fits: 55 days to maturity, 121 available after May 13. | Jul 4 |
| Pole Beans | — | May 20–Jun 3 | 114 | fits: 65 days to maturity, 114 available after May 20. | Jun 24 |
| Spaghetti Squash | Apr 29 | May 27–Jun 3 | 100 | fits: 90 days to maturity, 100 available after May 27. | — |
| Sunflowers | — | May 13–May 27 | 121 | fits: 70 days to maturity, 121 available after May 13. | Jun 19 |
| Tomatillos | Mar 18 | May 20–May 27 | 100 | fits: 75 days to maturity, 100 available after May 20. | May 31 |
| Watermelon | Apr 29 | May 20–May 27 | 100 | fits: 80 days to maturity, 100 available after May 20. | May 26 |
| Yellow Squash | Apr 29 | May 27–Jun 3 | 107 | fits: 55 days to maturity, 107 available after May 27. | Jul 4 |
| Zinnias | Apr 15 | May 13–May 27 | 121 | fits: 60 days to maturity, 121 available after May 13. | Jun 29 |
Month by month in Marshfield
| Month | What to do |
|---|---|
| January | Plan your garden layout and order seeds. Research varieties suited to your frost dates. |
| February | Start indoors: Chives (Feb 18), Lavender (Feb 18), Onion (Feb 18), Rosemary (Feb 18). |
| March | Start indoors: Celery (Mar 4), Collards (Mar 4), Kale (Mar 4), Oregano (Mar 4), Parsley (Mar 4), Scallions (Mar 4), +9 more. Direct sow from: Arugula (Mar 18), Beets (Mar 18), Dill (Mar 18), Peas (Mar 18), Radish (Mar 18), Spinach (Mar 18). |
| April | Start indoors: Calendula (Apr 1), Cauliflower (Apr 1), Marigolds (Apr 1), Pepper (Apr 1), Basil (Apr 8), Tomato (Apr 8), +15 more. Direct sow from: Kohlrabi (Apr 1), Cilantro (Apr 15), Turnip (Apr 15), Carrots (Apr 22), Potatoes (Apr 29). Transplant from: Broccoli (Apr 15), Brussel Sprouts (Apr 15), Cabbage (Apr 15), Collards (Apr 15), Kale (Apr 15), Lettuce (Apr 15), +4 more. Plant: Strawberry (Apr 8). |
| May | Direct sow from: Sunflowers (May 13), Beans (May 20), Pole Beans (May 20). Transplant from: Bok Choy (May 6), Cauliflower (May 6), Cosmos (May 13), Lavender (May 13), Marigolds (May 13), Mint (May 13), +24 more. Last frost around May 13. Last sowing dates: Celery (May 21), Watermelon (May 26), Pepper (May 31), Tomatillos (May 31). |
| June | Transplant from: Basil (Jun 3). Last sowing dates: Eggplant (Jun 5), Corn (Jun 7), Sunflowers (Jun 19), Brussel Sprouts (Jun 24), Pole Beans (Jun 24), Basil (Jun 29), +4 more. |
| July | Last sowing dates: Nasturtiums (Jul 4), Okra (Jul 4), Yellow Squash (Jul 4), Zucchini (Jul 4), Cauliflower (Jul 5), Beans (Jul 6), +10 more. |
| August | Last sowing dates: Collards (Aug 3), Scallions (Aug 3), Bok Choy (Aug 4), Lettuce (Aug 4), Kale (Aug 8), Kohlrabi (Aug 8), +4 more. |
| September | Direct sow from: Garlic (Sep 25). First frost around September 25. |
| October | Last sowing dates: Garlic (Oct 16). |
| November | Clean up spent plants. Add compost to beds. Rest, review, and plan next year's garden. |
| 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 Marshfield, WI (ZIP 54449)?
The median last spring frost date for Marshfield, WI (ZIP code 54449) is around May 13. 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 30; one in ten it runs past May 27.
What is the first fall frost date in Marshfield, WI?
The median first fall frost date for Marshfield, WI is around September 25. 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 14 in the earliest one-in-ten years, so cover tomatoes and peppers from then.
How long is the growing season in Marshfield, WI?
The frost-free growing season in Marshfield is about 135 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 Marshfield (135 frost-free days, a moderate season), 39 of 56 planner crops fit outright, 16 get two plantings, 1 crop is perennial.
What USDA hardiness zone is Marshfield, WI?
Marshfield, WI is in USDA hardiness zone 4b (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 Marshfield, WI?
Start tomatoes indoors Apr 8 and plant out May 27 in Marshfield. The planner uses the local median last frost and this crop's indoor-start and transplant offsets.
How many plantings of lettuce fit in Marshfield?
Two: plant Apr 15 and again by Aug 4; both mature before Oct 2.
When do I plant garlic in Marshfield?
Sep 25 to Oct 16; it overwinters and is ready the following summer.
Which nearby ZIP has a longer season?
Mosinee (ZIP 54455) has 147 frost-free days, 12 more than Marshfield (ZIP 54449). See Mosinee ZIP 54455 frost dates
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