Blytheville, AR planting zone & frost dates
Blytheville is in USDA hardiness zone 8a. The last spring frost usually comes around March 18 and the first fall frost around November 14, for a growing season of about 240 days.
Planting calendar for Blytheville
Dates are counted from the average last spring frost (March 18) using the typical timing recommended by U.S. extension services. Warm-season crops go out only after the danger of frost has passed and the soil has warmed.
| Crop | When |
|---|---|
| Tomatoes | Start seeds indoors: Jan 21 – Feb 4 Transplant outdoors: Mar 25 – Apr 1 |
| Peppers | Start seeds indoors: Jan 7 – Jan 21 Transplant outdoors: Apr 1 – Apr 8 |
| Eggplant | Start seeds indoors: Jan 7 – Jan 21 Transplant outdoors: Apr 1 – Apr 8 |
| Broccoli | Start seeds indoors: Jan 7 – Jan 21 Transplant outdoors: Feb 18 – Mar 4 |
| Cabbage | Start seeds indoors: Jan 7 – Jan 21 Transplant outdoors: Feb 18 – Mar 4 |
| Onions (sets) | Plant outdoors: Feb 18 – Mar 4 |
| Peas | Sow outdoors: Feb 4 – Feb 18 |
| Spinach | Sow outdoors: Feb 4 – Feb 18 |
| Lettuce | Sow outdoors: Feb 18 – Mar 4 |
| Carrots | Sow outdoors: Feb 18 – Mar 4 |
| Potatoes | Plant outdoors: Feb 18 – Mar 4 |
| Beans | Sow outdoors: Mar 25 – Apr 1 |
| Sweet corn | Sow outdoors: Mar 25 – Apr 1 |
| Cucumbers | Sow outdoors: Mar 25 – Apr 1 |
| Squash & zucchini | Sow outdoors: Mar 25 – Apr 1 |
| Basil | Start seeds indoors: Feb 4 – Feb 18 Transplant outdoors: Mar 25 – Apr 1 |
Fall garden: cool-season crops like lettuce, spinach and kale can be sown again around Sep 19 (8 weeks before the average first fall frost on Nov 14).
Useful for zone 8a gardens
- Seed starting kit with dome — to start seeds indoors before the last frost
- LED grow light for seedlings — stops leggy seedlings
- Frost cloth / plant covers — for late spring and early fall frosts
- Soil thermometer — warm-season crops need soil above 60°F
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Frost risk in detail
| 90% chance | 50% chance | 10% chance | |
|---|---|---|---|
| Last 32°F frost in spring is after | Mar 2 | Mar 18 | Apr 3 |
| First 32°F frost in fall is before | Dec 1 | Nov 14 | Nov 1 |
How to read it: in spring there is a 10% chance of a frost after April 3, so that is a safe date for tender plants. In fall there is a 10% chance of frost before November 1. A hard freeze (28°F) usually ends around March 8.
Hardiness zone by ZIP code in Blytheville
- 72315 zone 8a
- 72316 zone 8a
Nearby cities
- Paragould zone 8a, last frost Mar 26
- Marion zone 8a, last frost Mar 16
- Jonesboro zone 7b, last frost Apr 1
- West Memphis zone 8a, last frost Mar 19
- Forrest City zone 8a, last frost Mar 23
- Helena-West Helena zone 8a, last frost Mar 15
- Batesville zone 7b, last frost Mar 30
- Searcy zone 8a, last frost Mar 27
Questions
What growing zone is Blytheville, AR?
Blytheville is in USDA Plant Hardiness Zone 8a (average extreme winter low 10°F to 15°F), according to the USDA 2023 map.
When is the last frost in Blytheville?
The average last spring frost (32°F) in Blytheville is March 18. There is still a 10% chance of frost until April 3.
When can I plant tomatoes in Blytheville?
Transplant tomatoes outdoors 1–2 weeks after the average last frost: around Mar 25 – Apr 1. Start seeds indoors 6–8 weeks before the last frost.
Frost dates: NOAA U.S. Climate Normals 1991–2020, station Blytheville, AR (USC00030806), 1.4 km (0.9 mi) from the city center, elevation 77 m, based on 21 years of records. Hardiness zone: USDA Plant Hardiness Zone Map 2023 for the ZIP code nearest to the city center. Microclimates (valleys, hills, cities, coasts) can be warmer or colder: check the local forecast before planting. How we calculate the data.