USDA Hardiness Zone 7b
Frost Dates for 37048 — Cottontown, Tennessee
Averages from White House, Tn US, the nearest reporting station, 3.8 miles away.
Plant tender crops after April 7, and expect the first autumn freeze around October 30. That leaves about 206 frost-free days.
- Last spring frost
- April 7
- First fall frost
- October 30
- Growing season
- 206 days
- Hardiness zone
- 7b
50% probability
50% probability
frost-free
5 to 10°F annual low
Planting calendar for 37048
| When | What to do |
|---|---|
| January 27 – February 10 | Start peppers and aubergines indoors They need eight to ten weeks under lights before they can go out. |
| February 10 – February 24 | Start tomatoes indoors Six to eight weeks gives a transplant big enough to set fruit early. |
| March 10 – March 24 | Sow peas, spinach, lettuce, radish outdoors These tolerate light frost and prefer to germinate in cool soil. |
| April 7 onward | Transplant tomatoes, peppers, basil, squash, cucumbers The average last freeze has passed — still watch the actual forecast. |
| by August 7 | Sow the autumn crop of carrots, beets and brassicas They need about twelve weeks to size up before growth stops. |
| by October 16 | Harvest tender crops, or be ready to cover them A first freeze two weeks early is well within normal variation. |
| October 30 onward | Plant garlic, mulch beds, lift tender bulbs Garlic wants a cold spell; bare soil loses structure over winter. |
What these dates mean
Wait until after April 7 to put tender plants — tomatoes, peppers, basil, squash — in the ground. That is the date by which half of years in Cottontown, Tennessee are past their last freeze. Harvest before October 30, which leaves roughly 206 frost-free days.
ZIP 37048 sits in USDA hardiness zone 7b, meaning the average coldest night of the year falls between 5 to 10°F. Zone decides what survives the winter; frost dates decide when to plant each spring. They are different questions, and a plant can pass one and fail the other.
These are thirty-year NOAA averages for 1991–2020, not a forecast. Any individual year can frost two to three weeks either side of these dates, so check the actual forecast before planting out.