Frost Dates for Ravenna, MI 49451
Last spring frost May 6 · First fall frost October 9 · 156 frost-free days · USDA Zone 6a
ZIP 49451 has about 6,300 people.
Moderate season: 156 frost-free days. Spring frost risk spans April 15–May 26 (41 days). Fall frost risk spans September 26–October 22 (26 days).
Frost probability for 49451
| Frost | 10% | 50% | 90% |
|---|---|---|---|
| Spring (last frost) | May 26 | May 6 | April 15 |
| Fall (first frost) | September 26 | October 9 | October 22 |
Dates come from NOAA 1971–2000 freeze probabilities at MUSKEGON CO AP (22.1 km away); the 50% date is the median year.
Which crops fit a 156-day season in Ravenna
In Ravenna (156 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 | Apr 1 | May 20–May 27 | 114 | fits: 80 days to maturity, 114 available after May 20. | Jun 9 |
| Pepper | Mar 25 | May 20–May 27 | 114 | fits: 75 days to maturity, 114 available after May 20. | Jun 14 |
| Lettuce | Mar 11 | Apr 8–Apr 15 | 191 | two-plantings: Plant Apr 8 and again by Aug 18; both mature before Oct 16. | Aug 18 |
| Carrots | — | Apr 15–Apr 22 | 198 | fits: 70 days to maturity, 198 available after Apr 15. | Aug 7 |
| Cucumber | Apr 15 | May 20–May 27 | 128 | fits: 60 days to maturity, 128 available after May 20. | Jul 13 |
| Beans | — | May 13–May 27 | 142 | two-plantings: Plant May 13 and again by Jul 20; both mature before Oct 2. | Jul 20 |
| Peas | — | Mar 11–May 20 | 219 | fits: 65 days to maturity, 219 available after Mar 11. | Jul 29 |
| Zucchini | Apr 22 | May 20–May 27 | 128 | two-plantings: Plant May 20 and again by Jul 18; both mature before Sep 25. | Jul 18 |
| Onion | Feb 11 | Apr 8–Apr 22 | 191 | fits: 100 days to maturity, 191 available after Apr 8. | — |
| Spinach | — | Mar 11–Apr 29 | 233 | two-plantings: Plant Mar 11 and again by Sep 6; both mature before Oct 30. | Sep 6 |
| Kale | Feb 25 | Apr 8–Apr 22 | 205 | two-plantings: Plant Apr 8 and again by Aug 22; both mature before Oct 30. | Aug 22 |
| Broccoli | Mar 11 | Apr 8–Apr 22 | 191 | fits: 80 days to maturity, 191 available after Apr 8. | Jul 14 |
| Cabbage | Mar 11 | Apr 8–Apr 22 | 205 | fits: 70 days to maturity, 205 available after Apr 8. | Aug 7 |
| Radish | — | Mar 11–Jun 3 | 219 | two-plantings: Plant Mar 11 and again by Sep 7; both mature before Oct 16. | Sep 7 |
| Beets | — | Mar 11–Jun 3 | 219 | two-plantings: Plant Mar 11 and again by Aug 8; both mature before Oct 16. | Aug 8 |
| Potatoes | — | Apr 22–Apr 29 | 177 | fits: 90 days to maturity, 177 available after Apr 22. | — |
| Garlic | — | Oct 9 | 261 | overwinter: Plant Oct 9 to Oct 30; harvest the following summer. | Oct 30 |
| Strawberry | — | Apr 1–May 27 | 212 | perennial: A perennial: plant Apr 1; it fruits from the following year and keeps producing for several years. | — |
| Corn | Apr 8 | May 13–May 20 | 128 | fits: 75 days to maturity, 128 available after May 13. | Jun 21 |
| Pumpkin | Apr 22 | May 20–May 20 | 121 | fits: 100 days to maturity, 121 available after May 20. | May 27 |
| Cauliflower | Mar 25 | Apr 29–May 13 | 170 | fits: 75 days to maturity, 170 available after Apr 29. | Jul 19 |
| Swiss Chard | Mar 11 | Apr 22–Apr 22 | 177 | two-plantings: Plant Apr 22 and again by Aug 8; both mature before Oct 16. | Aug 8 |
| Arugula | — | Mar 11–Jun 3 | 233 | two-plantings: Plant Mar 11 and again by Sep 6; both mature before Oct 30. | Sep 6 |
| Brussel Sprouts | Mar 11 | Apr 8–Apr 22 | 205 | fits: 100 days to maturity, 205 available after Apr 8. | Jul 8 |
| Butternut Squash | Apr 22 | May 20–May 27 | 121 | fits: 100 days to maturity, 121 available after May 20. | May 27 |
| Eggplant | Mar 18 | May 20–May 27 | 114 | fits: 70 days to maturity, 114 available after May 20. | Jun 19 |
| Okra | Apr 8 | May 13–May 20 | 135 | two-plantings: Plant May 13 and again by Jul 18; both mature before Sep 25. | Jul 18 |
| Basil | Apr 1 | May 27–May 27 | 121 | fits: 60 days to maturity, 121 available after May 27. | Jul 13 |
| Cilantro | — | Apr 8–Apr 29 | 191 | two-plantings: Plant Apr 8 and again by Aug 13; both mature before Oct 16. | Aug 13 |
| Parsley | Feb 25 | May 13–May 20 | 156 | fits: 70 days to maturity, 156 available after May 13. | Jul 24 |
| Celery | Feb 25 | May 13–May 27 | 156 | fits: 120 days to maturity, 156 available after May 13. | Jun 4 |
| Scallions | Feb 25 | Apr 8–Apr 22 | 205 | two-plantings: Plant Apr 8 and again by Aug 17; both mature before Oct 30. | Aug 17 |
| Turnip | — | Apr 8–Apr 22 | 205 | two-plantings: Plant Apr 8 and again by Aug 27; both mature before Oct 30. | Aug 27 |
| Kohlrabi | — | Mar 25–Apr 8 | 219 | two-plantings: Plant Mar 25 and again by Aug 22; both mature before Oct 30. | Aug 22 |
| Bok Choy | Apr 8 | Apr 29–May 6 | 170 | two-plantings: Plant Apr 29 and again by Aug 18; both mature before Oct 16. | Aug 18 |
| Collards | Feb 25 | Apr 8–Apr 22 | 205 | two-plantings: Plant Apr 8 and again by Aug 17; both mature before Oct 30. | Aug 17 |
| Cantaloupe | Apr 22 | May 20–May 27 | 114 | fits: 85 days to maturity, 114 available after May 20. | Jun 4 |
| Chives | Feb 11 | May 13–May 20 | 170 | fits: 90 days to maturity, 170 available after May 13. | — |
| Dill | — | Mar 11–Jun 3 | 219 | two-plantings: Plant Mar 11 and again by Aug 8; both mature before Oct 16. | Aug 8 |
| Oregano | Feb 25 | May 13–May 20 | 170 | fits: 80 days to maturity, 170 available after May 13. | — |
| Rosemary | Feb 11 | May 13–May 20 | 156 | fits: 80 days to maturity, 156 available after May 13. | — |
| Sage | Mar 11 | May 13–May 20 | 170 | fits: 75 days to maturity, 170 available after May 13. | — |
| Thyme | Feb 25 | May 13–May 20 | 170 | fits: 90 days to maturity, 170 available after May 13. | — |
| Calendula | Mar 25 | Apr 22–May 6 | 177 | two-plantings: Plant Apr 22 and again by Aug 13; both mature before Oct 16. | Aug 13 |
| Cosmos | Apr 8 | May 6–May 20 | 142 | two-plantings: Plant May 6 and again by Jul 13; both mature before Sep 25. | Jul 13 |
| Lavender | Feb 11 | May 6–May 20 | 177 | fits: 90 days to maturity, 177 available after May 6. | — |
| Marigolds | Mar 25 | May 6–May 13 | 142 | two-plantings: Plant May 6 and again by Jul 23; both mature before Sep 25. | Jul 23 |
| Melons | Apr 22 | May 20–May 27 | 114 | fits: 85 days to maturity, 114 available after May 20. | Jun 4 |
| Mint | — | May 6–May 20 | 177 | fits: 90 days to maturity, 177 available after May 6. | — |
| Nasturtiums | Apr 8 | May 6–May 13 | 142 | two-plantings: Plant May 6 and again by Jul 18; both mature before Sep 25. | Jul 18 |
| Pole Beans | — | May 13–May 27 | 135 | fits: 65 days to maturity, 135 available after May 13. | Jul 8 |
| Spaghetti Squash | Apr 22 | May 20–May 27 | 121 | fits: 90 days to maturity, 121 available after May 20. | Jun 6 |
| Sunflowers | — | May 6–May 20 | 142 | fits: 70 days to maturity, 142 available after May 6. | Jul 3 |
| Tomatillos | Mar 11 | May 13–May 20 | 121 | fits: 75 days to maturity, 121 available after May 13. | Jun 14 |
| Watermelon | Apr 22 | May 13–May 20 | 121 | fits: 80 days to maturity, 121 available after May 13. | Jun 9 |
| Yellow Squash | Apr 22 | May 20–May 27 | 128 | two-plantings: Plant May 20 and again by Jul 18; both mature before Sep 25. | Jul 18 |
| Zinnias | Apr 8 | May 6–May 20 | 142 | two-plantings: Plant May 6 and again by Jul 13; both mature before Sep 25. | Jul 13 |
Month by month in Ravenna
| Month | What to do |
|---|---|
| January | Plan your garden layout and order seeds. Research varieties suited to your frost dates. |
| February | Start indoors: Chives (Feb 11), Lavender (Feb 11), Onion (Feb 11), Rosemary (Feb 11), Celery (Feb 25), Collards (Feb 25), +5 more. |
| March | Start indoors: Broccoli (Mar 11), Brussel Sprouts (Mar 11), Cabbage (Mar 11), Lettuce (Mar 11), Sage (Mar 11), Swiss Chard (Mar 11), +6 more. Direct sow from: Arugula (Mar 11), Beets (Mar 11), Dill (Mar 11), Peas (Mar 11), Radish (Mar 11), Spinach (Mar 11), +1 more. |
| April | Start indoors: Basil (Apr 1), Tomato (Apr 1), Bok Choy (Apr 8), Corn (Apr 8), Cosmos (Apr 8), Nasturtiums (Apr 8), +11 more. Direct sow from: Cilantro (Apr 8), Turnip (Apr 8), Carrots (Apr 15), Potatoes (Apr 22). Transplant from: Broccoli (Apr 8), Brussel Sprouts (Apr 8), Cabbage (Apr 8), Collards (Apr 8), Kale (Apr 8), Lettuce (Apr 8), +6 more. Plant: Strawberry (Apr 1). |
| May | Direct sow from: Sunflowers (May 6), Beans (May 13), Pole Beans (May 13). Transplant from: Cosmos (May 6), Lavender (May 6), Marigolds (May 6), Mint (May 6), Nasturtiums (May 6), Zinnias (May 6), +23 more. Last frost around May 6. Last sowing dates: Butternut Squash (May 27), Pumpkin (May 27). |
| June | Last sowing dates: Cantaloupe (Jun 4), Celery (Jun 4), Melons (Jun 4), Spaghetti Squash (Jun 6), Tomato (Jun 9), Watermelon (Jun 9), +4 more. |
| July | Last sowing dates: Sunflowers (Jul 3), Brussel Sprouts (Jul 8), Pole Beans (Jul 8), Basil (Jul 13), Cosmos (Jul 13), Cucumber (Jul 13), +11 more. |
| August | Last sowing dates: Cabbage (Aug 7), Carrots (Aug 7), Beets (Aug 8), Dill (Aug 8), Swiss Chard (Aug 8), Calendula (Aug 13), +8 more. |
| September | Last sowing dates: Arugula (Sep 6), Spinach (Sep 6), Radish (Sep 7). |
| October | Direct sow from: Garlic (Oct 9). First frost around October 9. Last sowing dates: Garlic (Oct 30). |
| 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 Ravenna, MI (ZIP 49451)?
The median last spring frost date for Ravenna, MI (ZIP code 49451) is around May 6. 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 15; one in ten it runs past May 26.
What is the first fall frost date in Ravenna, MI?
The median first fall frost date for Ravenna, MI is around October 9. 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 26 in the earliest one-in-ten years, so cover tomatoes and peppers from then.
How long is the growing season in Ravenna, MI?
The frost-free growing season in Ravenna is about 156 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 Ravenna (156 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 Ravenna, MI?
Ravenna, MI 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 Ravenna, MI?
Start tomatoes indoors Apr 1 and plant out May 20 in Ravenna. The planner uses the local median last frost and this crop's indoor-start and transplant offsets.
How many plantings of lettuce fit in Ravenna?
Two: plant Apr 8 and again by Aug 18; both mature before Oct 16.
When do I plant garlic in Ravenna?
Oct 9 to Oct 30; it overwinters and is ready the following summer.
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