Frost Dates for Inver Grove Heights, MN 55077
Inver Grove Heights has 2 ZIP codes. The Inver Grove Heights, MN frost page lists all of them with their dates.
Last spring frost April 30 · First fall frost October 5 · 158 frost-free days · USDA Zone 5a
ZIP 55077 has about 14,500 people, one of 2 ZIP codes in Inver Grove Heights.
Moderate season: 158 frost-free days. Spring frost risk spans April 17–May 14 (27 days). Fall frost risk spans September 20–October 18 (28 days).
Frost probability for 55077
| Frost | 10% | 50% | 90% |
|---|---|---|---|
| Spring (last frost) | May 14 | April 30 | April 17 |
| Fall (first frost) | September 20 | October 5 | October 18 |
Dates come from NOAA 1971–2000 freeze probabilities at MINNEAPOLIS-ST PAUL INTL AP (14.3 km away); the 50% date is the median year.
Which crops fit a 158-day season in Inver Grove Heights
In Inver Grove Heights (158 frost-free days, a moderate season), 32 of 56 planner crops fit outright, 23 get two plantings, 1 crop is perennial.
| Crop | Start indoors | Plant out / sow | Days you have | Verdict | Last sow date |
|---|---|---|---|---|---|
| Tomato | Mar 26 | May 14–May 21 | 116 | fits: 80 days to maturity, 116 available after May 14. | Jun 5 |
| Pepper | Mar 19 | May 14–May 21 | 116 | fits: 75 days to maturity, 116 available after May 14. | Jun 10 |
| Lettuce | Mar 5 | Apr 2–Apr 9 | 193 | two-plantings: Plant Apr 2 and again by Aug 14; both mature before Oct 12. | Aug 14 |
| Carrots | — | Apr 9–Apr 16 | 200 | fits: 70 days to maturity, 200 available after Apr 9. | Aug 3 |
| Cucumber | Apr 9 | May 14–May 21 | 130 | fits: 60 days to maturity, 130 available after May 14. | Jul 9 |
| Beans | — | May 7–May 21 | 144 | two-plantings: Plant May 7 and again by Jul 16; both mature before Sep 28. | Jul 16 |
| Peas | — | Mar 5–May 14 | 221 | fits: 65 days to maturity, 221 available after Mar 5. | Jul 25 |
| Zucchini | Apr 16 | May 14–May 21 | 130 | two-plantings: Plant May 14 and again by Jul 14; both mature before Sep 21. | Jul 14 |
| Onion | Feb 5 | Apr 2–Apr 16 | 193 | fits: 100 days to maturity, 193 available after Apr 2. | — |
| Spinach | — | Mar 5–Apr 23 | 235 | two-plantings: Plant Mar 5 and again by Sep 2; both mature before Oct 26. | Sep 2 |
| Kale | Feb 19 | Apr 2–Apr 16 | 207 | two-plantings: Plant Apr 2 and again by Aug 18; both mature before Oct 26. | Aug 18 |
| Broccoli | Mar 5 | Apr 2–Apr 16 | 193 | fits: 80 days to maturity, 193 available after Apr 2. | Jul 10 |
| Cabbage | Mar 5 | Apr 2–Apr 16 | 207 | fits: 70 days to maturity, 207 available after Apr 2. | Aug 3 |
| Radish | — | Mar 5–May 28 | 221 | two-plantings: Plant Mar 5 and again by Sep 3; both mature before Oct 12. | Sep 3 |
| Beets | — | Mar 5–May 28 | 221 | two-plantings: Plant Mar 5 and again by Aug 4; both mature before Oct 12. | Aug 4 |
| Potatoes | — | Apr 16–Apr 23 | 179 | fits: 90 days to maturity, 179 available after Apr 16. | — |
| Garlic | — | Oct 5 | 263 | overwinter: Plant Oct 5 to Oct 26; harvest the following summer. | Oct 26 |
| Strawberry | — | Mar 26–May 21 | 214 | perennial: A perennial: plant Mar 26; it fruits from the following year and keeps producing for several years. | — |
| Corn | Apr 2 | May 7–May 14 | 130 | fits: 75 days to maturity, 130 available after May 7. | Jun 17 |
| Pumpkin | Apr 16 | May 14–May 14 | 123 | fits: 100 days to maturity, 123 available after May 14. | May 23 |
| Cauliflower | Mar 19 | Apr 23–May 7 | 172 | fits: 75 days to maturity, 172 available after Apr 23. | Jul 15 |
| Swiss Chard | Mar 5 | Apr 16–Apr 16 | 179 | two-plantings: Plant Apr 16 and again by Aug 4; both mature before Oct 12. | Aug 4 |
| Arugula | — | Mar 5–May 28 | 235 | two-plantings: Plant Mar 5 and again by Sep 2; both mature before Oct 26. | Sep 2 |
| Brussel Sprouts | Mar 5 | Apr 2–Apr 16 | 207 | fits: 100 days to maturity, 207 available after Apr 2. | Jul 4 |
| Butternut Squash | Apr 16 | May 14–May 21 | 123 | fits: 100 days to maturity, 123 available after May 14. | May 23 |
| Eggplant | Mar 12 | May 14–May 21 | 116 | fits: 70 days to maturity, 116 available after May 14. | Jun 15 |
| Okra | Apr 2 | May 7–May 14 | 137 | two-plantings: Plant May 7 and again by Jul 14; both mature before Sep 21. | Jul 14 |
| Basil | Mar 26 | May 21–May 21 | 123 | fits: 60 days to maturity, 123 available after May 21. | Jul 9 |
| Cilantro | — | Apr 2–Apr 23 | 193 | two-plantings: Plant Apr 2 and again by Aug 9; both mature before Oct 12. | Aug 9 |
| Parsley | Feb 19 | May 7–May 14 | 158 | fits: 70 days to maturity, 158 available after May 7. | Jul 20 |
| Celery | Feb 19 | May 7–May 21 | 158 | fits: 120 days to maturity, 158 available after May 7. | May 31 |
| Scallions | Feb 19 | Apr 2–Apr 16 | 207 | two-plantings: Plant Apr 2 and again by Aug 13; both mature before Oct 26. | Aug 13 |
| Turnip | — | Apr 2–Apr 16 | 207 | two-plantings: Plant Apr 2 and again by Aug 23; both mature before Oct 26. | Aug 23 |
| Kohlrabi | — | Mar 19–Apr 2 | 221 | two-plantings: Plant Mar 19 and again by Aug 18; both mature before Oct 26. | Aug 18 |
| Bok Choy | Apr 2 | Apr 23–Apr 30 | 172 | two-plantings: Plant Apr 23 and again by Aug 14; both mature before Oct 12. | Aug 14 |
| Collards | Feb 19 | Apr 2–Apr 16 | 207 | two-plantings: Plant Apr 2 and again by Aug 13; both mature before Oct 26. | Aug 13 |
| Cantaloupe | Apr 16 | May 14–May 21 | 116 | fits: 85 days to maturity, 116 available after May 14. | May 31 |
| Chives | Feb 5 | May 7–May 14 | 172 | fits: 90 days to maturity, 172 available after May 7. | — |
| Dill | — | Mar 5–May 28 | 221 | two-plantings: Plant Mar 5 and again by Aug 4; both mature before Oct 12. | Aug 4 |
| Oregano | Feb 19 | May 7–May 14 | 172 | fits: 80 days to maturity, 172 available after May 7. | — |
| Rosemary | Feb 5 | May 7–May 14 | 158 | fits: 80 days to maturity, 158 available after May 7. | — |
| Sage | Mar 5 | May 7–May 14 | 172 | fits: 75 days to maturity, 172 available after May 7. | — |
| Thyme | Feb 19 | May 7–May 14 | 172 | fits: 90 days to maturity, 172 available after May 7. | — |
| Calendula | Mar 19 | Apr 16–Apr 30 | 179 | two-plantings: Plant Apr 16 and again by Aug 9; both mature before Oct 12. | Aug 9 |
| Cosmos | Apr 2 | Apr 30–May 14 | 144 | two-plantings: Plant Apr 30 and again by Jul 9; both mature before Sep 21. | Jul 9 |
| Lavender | Feb 5 | Apr 30–May 14 | 179 | fits: 90 days to maturity, 179 available after Apr 30. | — |
| Marigolds | Mar 19 | Apr 30–May 7 | 144 | two-plantings: Plant Apr 30 and again by Jul 19; both mature before Sep 21. | Jul 19 |
| Melons | Apr 16 | May 14–May 21 | 116 | fits: 85 days to maturity, 116 available after May 14. | May 31 |
| Mint | — | Apr 30–May 14 | 179 | fits: 90 days to maturity, 179 available after Apr 30. | — |
| Nasturtiums | Apr 2 | Apr 30–May 7 | 144 | two-plantings: Plant Apr 30 and again by Jul 14; both mature before Sep 21. | Jul 14 |
| Pole Beans | — | May 7–May 21 | 137 | fits: 65 days to maturity, 137 available after May 7. | Jul 4 |
| Spaghetti Squash | Apr 16 | May 14–May 21 | 123 | fits: 90 days to maturity, 123 available after May 14. | Jun 2 |
| Sunflowers | — | Apr 30–May 14 | 144 | fits: 70 days to maturity, 144 available after Apr 30. | Jun 29 |
| Tomatillos | Mar 5 | May 7–May 14 | 123 | fits: 75 days to maturity, 123 available after May 7. | Jun 10 |
| Watermelon | Apr 16 | May 7–May 14 | 123 | fits: 80 days to maturity, 123 available after May 7. | Jun 5 |
| Yellow Squash | Apr 16 | May 14–May 21 | 130 | two-plantings: Plant May 14 and again by Jul 14; both mature before Sep 21. | Jul 14 |
| Zinnias | Apr 2 | Apr 30–May 14 | 144 | two-plantings: Plant Apr 30 and again by Jul 9; both mature before Sep 21. | Jul 9 |
Month by month in Inver Grove Heights
| Month | What to do |
|---|---|
| January | Plan your garden layout and order seeds. Research varieties suited to your frost dates. |
| February | Start indoors: Chives (Feb 5), Lavender (Feb 5), Onion (Feb 5), Rosemary (Feb 5), Celery (Feb 19), Collards (Feb 19), +5 more. |
| March | Start indoors: Broccoli (Mar 5), Brussel Sprouts (Mar 5), Cabbage (Mar 5), Lettuce (Mar 5), Sage (Mar 5), Swiss Chard (Mar 5), +8 more. Direct sow from: Arugula (Mar 5), Beets (Mar 5), Dill (Mar 5), Peas (Mar 5), Radish (Mar 5), Spinach (Mar 5), +1 more. Plant: Strawberry (Mar 26). |
| April | Start indoors: Bok Choy (Apr 2), Corn (Apr 2), Cosmos (Apr 2), Nasturtiums (Apr 2), Okra (Apr 2), Zinnias (Apr 2), +9 more. Direct sow from: Cilantro (Apr 2), Turnip (Apr 2), Carrots (Apr 9), Potatoes (Apr 16), Sunflowers (Apr 30). Transplant from: Broccoli (Apr 2), Brussel Sprouts (Apr 2), Cabbage (Apr 2), Collards (Apr 2), Kale (Apr 2), Lettuce (Apr 2), +12 more. Last frost around April 30. |
| May | Direct sow from: Beans (May 7), Pole Beans (May 7). Transplant from: Celery (May 7), Chives (May 7), Corn (May 7), Okra (May 7), Oregano (May 7), Parsley (May 7), +17 more. Last sowing dates: Butternut Squash (May 23), Pumpkin (May 23), Cantaloupe (May 31), Celery (May 31), Melons (May 31). |
| June | Last sowing dates: Spaghetti Squash (Jun 2), Tomato (Jun 5), Watermelon (Jun 5), Pepper (Jun 10), Tomatillos (Jun 10), Eggplant (Jun 15), +2 more. |
| July | Last sowing dates: Brussel Sprouts (Jul 4), Pole Beans (Jul 4), Basil (Jul 9), Cosmos (Jul 9), Cucumber (Jul 9), Zinnias (Jul 9), +10 more. |
| August | Last sowing dates: Cabbage (Aug 3), Carrots (Aug 3), Beets (Aug 4), Dill (Aug 4), Swiss Chard (Aug 4), Calendula (Aug 9), +8 more. |
| September | Last sowing dates: Arugula (Sep 2), Spinach (Sep 2), Radish (Sep 3). |
| October | Direct sow from: Garlic (Oct 5). First frost around October 5. Last sowing dates: Garlic (Oct 26). |
| 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 Inver Grove Heights, MN (ZIP 55077)?
The median last spring frost date for Inver Grove Heights, MN (ZIP code 55077) is around April 30. 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 17; one in ten it runs past May 14.
What is the first fall frost date in Inver Grove Heights, MN?
The median first fall frost date for Inver Grove Heights, MN is around October 5. 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 20 in the earliest one-in-ten years, so cover tomatoes and peppers from then.
How long is the growing season in Inver Grove Heights, MN?
The frost-free growing season in Inver Grove Heights is about 158 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 Inver Grove Heights (158 frost-free days, a moderate season), 32 of 56 planner crops fit outright, 23 get two plantings, 1 crop is perennial.
What USDA hardiness zone is Inver Grove Heights, MN?
Inver Grove Heights, MN is in USDA hardiness zone 5a (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 Inver Grove Heights, MN?
Start tomatoes indoors Mar 26 and plant out May 14 in Inver Grove Heights. The planner uses the local median last frost and this crop's indoor-start and transplant offsets.
How many plantings of lettuce fit in Inver Grove Heights?
Two: plant Apr 2 and again by Aug 14; both mature before Oct 12.
When do I plant garlic in Inver Grove Heights?
Oct 5 to Oct 26; it overwinters and is ready the following summer.
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