Frost Dates for Jenison, MI 49428
Last spring frost May 8 · First fall frost October 8 · 153 frost-free days · USDA Zone 6a
ZIP 49428 has about 28,200 people.
Moderate season: 153 frost-free days. Spring frost risk spans April 22–May 25 (33 days). Fall frost risk spans September 26–October 21 (25 days).
Frost probability for 49428
| Frost | 10% | 50% | 90% |
|---|---|---|---|
| Spring (last frost) | May 25 | May 8 | April 22 |
| Fall (first frost) | September 26 | October 8 | October 21 |
Dates come from NOAA 1971–2000 freeze probabilities at HOLLAND WTP (32.9 km away); the 50% date is the median year.
Which crops fit a 153-day season in Jenison
In Jenison (153 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 3 | May 22–May 29 | 111 | fits: 80 days to maturity, 111 available after May 22. | Jun 8 |
| Pepper | Mar 27 | May 22–May 29 | 111 | fits: 75 days to maturity, 111 available after May 22. | Jun 13 |
| Lettuce | Mar 13 | Apr 10–Apr 17 | 188 | two-plantings: Plant Apr 10 and again by Aug 17; both mature before Oct 15. | Aug 17 |
| Carrots | — | Apr 17–Apr 24 | 195 | fits: 70 days to maturity, 195 available after Apr 17. | Aug 6 |
| Cucumber | Apr 17 | May 22–May 29 | 125 | fits: 60 days to maturity, 125 available after May 22. | Jul 12 |
| Beans | — | May 15–May 29 | 139 | two-plantings: Plant May 15 and again by Jul 19; both mature before Oct 1. | Jul 19 |
| Peas | — | Mar 13–May 22 | 216 | fits: 65 days to maturity, 216 available after Mar 13. | Jul 28 |
| Zucchini | Apr 24 | May 22–May 29 | 125 | two-plantings: Plant May 22 and again by Jul 17; both mature before Sep 24. | Jul 17 |
| Onion | Feb 13 | Apr 10–Apr 24 | 188 | fits: 100 days to maturity, 188 available after Apr 10. | — |
| Spinach | — | Mar 13–May 1 | 230 | two-plantings: Plant Mar 13 and again by Sep 5; both mature before Oct 29. | Sep 5 |
| Kale | Feb 27 | Apr 10–Apr 24 | 202 | two-plantings: Plant Apr 10 and again by Aug 21; both mature before Oct 29. | Aug 21 |
| Broccoli | Mar 13 | Apr 10–Apr 24 | 188 | fits: 80 days to maturity, 188 available after Apr 10. | Jul 13 |
| Cabbage | Mar 13 | Apr 10–Apr 24 | 202 | fits: 70 days to maturity, 202 available after Apr 10. | Aug 6 |
| Radish | — | Mar 13–Jun 5 | 216 | two-plantings: Plant Mar 13 and again by Sep 6; both mature before Oct 15. | Sep 6 |
| Beets | — | Mar 13–Jun 5 | 216 | two-plantings: Plant Mar 13 and again by Aug 7; both mature before Oct 15. | Aug 7 |
| Potatoes | — | Apr 24–May 1 | 174 | fits: 90 days to maturity, 174 available after Apr 24. | — |
| Garlic | — | Oct 8 | 258 | overwinter: Plant Oct 8 to Oct 29; harvest the following summer. | Oct 29 |
| Strawberry | — | Apr 3–May 29 | 209 | perennial: A perennial: plant Apr 3; it fruits from the following year and keeps producing for several years. | — |
| Corn | Apr 10 | May 15–May 22 | 125 | fits: 75 days to maturity, 125 available after May 15. | Jun 20 |
| Pumpkin | Apr 24 | May 22–May 22 | 118 | fits: 100 days to maturity, 118 available after May 22. | May 26 |
| Cauliflower | Mar 27 | May 1–May 15 | 167 | fits: 75 days to maturity, 167 available after May 1. | Jul 18 |
| Swiss Chard | Mar 13 | Apr 24–Apr 24 | 174 | two-plantings: Plant Apr 24 and again by Aug 7; both mature before Oct 15. | Aug 7 |
| Arugula | — | Mar 13–Jun 5 | 230 | two-plantings: Plant Mar 13 and again by Sep 5; both mature before Oct 29. | Sep 5 |
| Brussel Sprouts | Mar 13 | Apr 10–Apr 24 | 202 | fits: 100 days to maturity, 202 available after Apr 10. | Jul 7 |
| Butternut Squash | Apr 24 | May 22–May 29 | 118 | fits: 100 days to maturity, 118 available after May 22. | May 26 |
| Eggplant | Mar 20 | May 22–May 29 | 111 | fits: 70 days to maturity, 111 available after May 22. | Jun 18 |
| Okra | Apr 10 | May 15–May 22 | 132 | two-plantings: Plant May 15 and again by Jul 17; both mature before Sep 24. | Jul 17 |
| Basil | Apr 3 | May 29–May 29 | 118 | fits: 60 days to maturity, 118 available after May 29. | Jul 12 |
| Cilantro | — | Apr 10–May 1 | 188 | two-plantings: Plant Apr 10 and again by Aug 12; both mature before Oct 15. | Aug 12 |
| Parsley | Feb 27 | May 15–May 22 | 153 | fits: 70 days to maturity, 153 available after May 15. | Jul 23 |
| Celery | Feb 27 | May 15–May 29 | 153 | fits: 120 days to maturity, 153 available after May 15. | Jun 3 |
| Scallions | Feb 27 | Apr 10–Apr 24 | 202 | two-plantings: Plant Apr 10 and again by Aug 16; both mature before Oct 29. | Aug 16 |
| Turnip | — | Apr 10–Apr 24 | 202 | two-plantings: Plant Apr 10 and again by Aug 26; both mature before Oct 29. | Aug 26 |
| Kohlrabi | — | Mar 27–Apr 10 | 216 | two-plantings: Plant Mar 27 and again by Aug 21; both mature before Oct 29. | Aug 21 |
| Bok Choy | Apr 10 | May 1–May 8 | 167 | two-plantings: Plant May 1 and again by Aug 17; both mature before Oct 15. | Aug 17 |
| Collards | Feb 27 | Apr 10–Apr 24 | 202 | two-plantings: Plant Apr 10 and again by Aug 16; both mature before Oct 29. | Aug 16 |
| Cantaloupe | Apr 24 | May 22–May 29 | 111 | fits: 85 days to maturity, 111 available after May 22. | Jun 3 |
| Chives | Feb 13 | May 15–May 22 | 167 | fits: 90 days to maturity, 167 available after May 15. | — |
| Dill | — | Mar 13–Jun 5 | 216 | two-plantings: Plant Mar 13 and again by Aug 7; both mature before Oct 15. | Aug 7 |
| Oregano | Feb 27 | May 15–May 22 | 167 | fits: 80 days to maturity, 167 available after May 15. | — |
| Rosemary | Feb 13 | May 15–May 22 | 153 | fits: 80 days to maturity, 153 available after May 15. | — |
| Sage | Mar 13 | May 15–May 22 | 167 | fits: 75 days to maturity, 167 available after May 15. | — |
| Thyme | Feb 27 | May 15–May 22 | 167 | fits: 90 days to maturity, 167 available after May 15. | — |
| Calendula | Mar 27 | Apr 24–May 8 | 174 | two-plantings: Plant Apr 24 and again by Aug 12; both mature before Oct 15. | Aug 12 |
| Cosmos | Apr 10 | May 8–May 22 | 139 | two-plantings: Plant May 8 and again by Jul 12; both mature before Sep 24. | Jul 12 |
| Lavender | Feb 13 | May 8–May 22 | 174 | fits: 90 days to maturity, 174 available after May 8. | — |
| Marigolds | Mar 27 | May 8–May 15 | 139 | two-plantings: Plant May 8 and again by Jul 22; both mature before Sep 24. | Jul 22 |
| Melons | Apr 24 | May 22–May 29 | 111 | fits: 85 days to maturity, 111 available after May 22. | Jun 3 |
| Mint | — | May 8–May 22 | 174 | fits: 90 days to maturity, 174 available after May 8. | — |
| Nasturtiums | Apr 10 | May 8–May 15 | 139 | two-plantings: Plant May 8 and again by Jul 17; both mature before Sep 24. | Jul 17 |
| Pole Beans | — | May 15–May 29 | 132 | fits: 65 days to maturity, 132 available after May 15. | Jul 7 |
| Spaghetti Squash | Apr 24 | May 22–May 29 | 118 | fits: 90 days to maturity, 118 available after May 22. | Jun 5 |
| Sunflowers | — | May 8–May 22 | 139 | fits: 70 days to maturity, 139 available after May 8. | Jul 2 |
| Tomatillos | Mar 13 | May 15–May 22 | 118 | fits: 75 days to maturity, 118 available after May 15. | Jun 13 |
| Watermelon | Apr 24 | May 15–May 22 | 118 | fits: 80 days to maturity, 118 available after May 15. | Jun 8 |
| Yellow Squash | Apr 24 | May 22–May 29 | 125 | two-plantings: Plant May 22 and again by Jul 17; both mature before Sep 24. | Jul 17 |
| Zinnias | Apr 10 | May 8–May 22 | 139 | two-plantings: Plant May 8 and again by Jul 12; both mature before Sep 24. | Jul 12 |
Month by month in Jenison
| Month | What to do |
|---|---|
| January | Plan your garden layout and order seeds. Research varieties suited to your frost dates. |
| February | Start indoors: Chives (Feb 13), Lavender (Feb 13), Onion (Feb 13), Rosemary (Feb 13), Celery (Feb 27), Collards (Feb 27), +5 more. |
| March | Start indoors: Broccoli (Mar 13), Brussel Sprouts (Mar 13), Cabbage (Mar 13), Lettuce (Mar 13), Sage (Mar 13), Swiss Chard (Mar 13), +6 more. Direct sow from: Arugula (Mar 13), Beets (Mar 13), Dill (Mar 13), Peas (Mar 13), Radish (Mar 13), Spinach (Mar 13), +1 more. |
| April | Start indoors: Basil (Apr 3), Tomato (Apr 3), Bok Choy (Apr 10), Corn (Apr 10), Cosmos (Apr 10), Nasturtiums (Apr 10), +11 more. Direct sow from: Cilantro (Apr 10), Turnip (Apr 10), Carrots (Apr 17), Potatoes (Apr 24). Transplant from: Broccoli (Apr 10), Brussel Sprouts (Apr 10), Cabbage (Apr 10), Collards (Apr 10), Kale (Apr 10), Lettuce (Apr 10), +4 more. Plant: Strawberry (Apr 3). |
| May | Direct sow from: Sunflowers (May 8), Beans (May 15), Pole Beans (May 15). Transplant from: Bok Choy (May 1), Cauliflower (May 1), Cosmos (May 8), Lavender (May 8), Marigolds (May 8), Mint (May 8), +25 more. Last frost around May 8. Last sowing dates: Butternut Squash (May 26), Pumpkin (May 26). |
| June | Last sowing dates: Cantaloupe (Jun 3), Celery (Jun 3), Melons (Jun 3), Spaghetti Squash (Jun 5), Tomato (Jun 8), Watermelon (Jun 8), +4 more. |
| July | Last sowing dates: Sunflowers (Jul 2), Brussel Sprouts (Jul 7), Pole Beans (Jul 7), Basil (Jul 12), Cosmos (Jul 12), Cucumber (Jul 12), +11 more. |
| August | Last sowing dates: Cabbage (Aug 6), Carrots (Aug 6), Beets (Aug 7), Dill (Aug 7), Swiss Chard (Aug 7), Calendula (Aug 12), +8 more. |
| September | Last sowing dates: Arugula (Sep 5), Spinach (Sep 5), Radish (Sep 6). |
| October | Direct sow from: Garlic (Oct 8). First frost around October 8. Last sowing dates: Garlic (Oct 29). |
| 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 Jenison, MI (ZIP 49428)?
The median last spring frost date for Jenison, MI (ZIP code 49428) is around May 8. 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 22; one in ten it runs past May 25.
What is the first fall frost date in Jenison, MI?
The median first fall frost date for Jenison, MI is around October 8. 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 Jenison, MI?
The frost-free growing season in Jenison is about 153 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 Jenison (153 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 Jenison, MI?
Jenison, 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 Jenison, MI?
Start tomatoes indoors Apr 3 and plant out May 22 in Jenison. The planner uses the local median last frost and this crop's indoor-start and transplant offsets.
How many plantings of lettuce fit in Jenison?
Two: plant Apr 10 and again by Aug 17; both mature before Oct 15.
When do I plant garlic in Jenison?
Oct 8 to Oct 29; it overwinters and is ready the following summer.
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